( )66(송인혁).fm
|
|
- 수민 판
- 8 years ago
- Views:
Transcription
1 Jurnal f the Krean Ceramic Sciety Vl. 4, N. 5, pp. 4~4, 009. DOI: /KCERS The Synthesis and Pre Prperty f Hydrgen Membranes Derived frm Plysilazane as Inrganic Plymer Il Min Kwn, In-Hyuck Sng, Yung-J Park, Jae-Wk Lee, Hui-suk Yun, and Hai-D Kim Engineering Ceramics Grup, Krea Institute f Materials Science, Changwn , Krea (Received July 15, 009; Revised August 11, 009; Accepted August 1, 009)» š s w w»œp «Á x Á Á Á Á½w ( ; ; ) ABSTRACT We investigated the pre prperties f inrganic membranes applied fr hydrgen separatin industry. Inrganic membranes were derived frm plysilazanes. The thermal reactins invlved were studied using thermgravimetry(tg) and IR spectrscpy(ftir) f the slids. T determine the thermal effect f pre prperties, plysilazanes were pyrlysed in inert atmsphere. Pre vlume and BET surface area shwed the maximum value at a pyrlysis temperature f 500 C. Fr amrphus SiCN membrane derived frm plysilazanes, selectivity f H /N was 4.81 at 00 C. Key wrds : Hydrgen, Separatin, Preceramic plymer, Micrpre 1. ƒÿ š w š, w» w y ey w ƒ ƒÿ š. w» ƒ yk z mw w w» w ù w k n w w w. p w k n ùkü» w» œ š y y» w w šz w wš w w. p» š» ù,» š w ü yw w š œ ƒ q»» š œ w» š. w yƒ ƒ w» š w, yw š», Crrespnding authr : In-Hyuck Sng sih154@kims.re.kr Tel : Fax : ¼š, w j» s, tƒœ, yw œ ƒ, 1,)»» w y š. p» š 3-5)» w k n» š ƒ w 00 C š» w. w» w w, ú ƒ ƒ» œ ƒ l. ƒ y e» w.» œ ù z s w š k œ š. w» y ww» ww» Ÿ w š. p ky w w œ w ƒ y w w š.,7)» d (supprt layer), d(intermediate layer),» d (tp layer) 3, d 4
2 43 «Á xá Á Á Á½w d gqw z gqw w. m q ù wš, d»œ j»ƒ ù w. 7)» w silcn preceramic š wš, chemical vapr depsitin(cvd) 4) - œ w 8) w w. š x œ SiCN s»(ar, N ) š w. 9) š y» ƒ w g»š s (plysilazane) w ƒ»œ p q w. š» š w p (TG), yw w(ftir),»œ p (BET) y w. w ù (supprt layer) w, d (intermediate layer)»š s SiC ù yw w spin cating œ w,» (tp layer) s w spin cating œ mw w. n k w d w.. x q ù(s³»œj»: 0.3 µm,»œ : 30%, Nanpre Materials, Krea) w. w d SiC (s³ : 50 nm, Sigma-Aldrich C., USA) y s (plysilazane 0, Kin C., USA) w isprpyle alchl yww ù spin cating w. yw SiC:s :isprpyle alchl=4:50:50(wt%). g q d 00 C 10 w ƒ e z» 500 C w. d w s w yw Fig ) x d spin cating w z 00 C 10 w ƒ e z» w. w 1C/min w 500, 00, 700, 800 C w. w ƒ» š w p TG (TA, SDT Q00) FTIR (Perkin Elmer, Spectrum GX) w w,»œp Prsimetry (Micrmeritics, ASAP 00) w w. v t BET w w š, 11) Fig. 1. The structure f the plysilazane (plysilazane 0, Kin). Fig.. Thermal behavir f plysilazanes in N atmsphere. j»œ p Lippens de Ber w š, 1)»œ j» Hrvath-Kawaze 13) w., d, x t FE-SEM(JEOL, JSM-400) y w š, n k d w p e w d w. 3. x š spin cating w d(intermediate layer),» d(tp layer) œ (Al O 3 ) w x w w. w(crack) j»œ ƒ x» š p w š. 14) w SiC, s, isprpyle alchl yww gqœ mw d x g, d» d w»œj» y w w w» w.» š s w š mw w ù w» ƒ sƒw. Fig. w s» 10 C/min d w wz
3 » š s w w»œp 44 Fig. 3. FTIR spectra f the plysilazanes: pyrlysed at (a) 00 C, (b) 500 C, and (c) 700 C in N atmsphere. Fig. 4. Nitrgen adsrptin and desrptin istherms f the plysilazanes pyrlysed at (a) 500, (b) 00, and (c) 700 C in N atmsphere. w TG š C¾.0% š. Jhn P. Dismukes et al. 15) s x» w tw, 50~350 C¾ plysilazane ligmer, 350~500 C¾ NH 3 CH 4, š 500 C CH 4 { w š šw, TG x w q. Fig. 3 s» 00, 500, 700 C ƒƒ w z d w FTIR rp. ƒƒ vj w w w Fig. 3 t w, 00 C ƒ w 3391 cm 1 N-H w, 957 cm 1 C-H 3 w, 18 cm 1 Si-H w, 154 cm 1 Si-CH 3 w, 114 cm Si-NH-Si 1 Si-(CH ) n -Si w, 1) 884 cm 1 Si-H w, 17) 755 cm 1 Si-CH 3 w 18) ùkû. ƒ ƒw 3391 cm 1 N-H, 18 cm 1 Si-H w (Fig. 3(b)), z 500 C C-H 3, Si-CH 3 w w 700 C y w (Fig. 3(c)). w ƒ 500 C 00~1100 cm 1 ƒ ùkû, 995 cm 1 Si-N w 1) 811 cm 1 Si-C w 1) x SiCN» x y w. Fig. 4 s» š k š (adsrptin and desrptin istherms) ùkü, Table 1»œ v, t, j»œ, j»œ ùkü. ƒƒ 500, 00, 700 C,» w.» 500 C w t m /g š j»œ m /g 88.3% j»œ x. t j»œ 500 C ƒ, ƒ ƒw»œ v, BET t, j»œ w, p 700 C»œ p y j»œ. Fig. 5 d»œ j» s Hrvath-Kawaze w.»œ j» s»œ v ƒ û 500 C 00 C w ù,»œ j» s j ùkü w.»œ j» 500 C 0.7 nm, 00 C 0.7 nm. y»œ v y w e»œ j» j Table 1. Pre Characteristics f the Plysilazane Pyrlysed at 500, 00, and 700 C in N Atmsphere Pyrlysis Temp. ( C) Pre vlume (cm 3 /g) BET surface area (m /g) Micrpre area (m /g) External surface area (m /g) [micrpre area/ BET surface area] 100 (%) «5y(009)
4 권일민 송인혁 박영조 이재욱 윤희숙 김해두 45 Fig. 5. Hrvath-Kawaze differential pre vlume plts f the plysilazanes pyrlysed at (a) 500 and (b) 00 C in N atmsphere. Fig.. Crss-sectin views f (a) plysilazane tp layer and (b) SiC intermediate layer pyrlysed at 500 C N atmsphere. Gas Permeatin Prperties at Rm Temperature f the Plysilazane Membranes Pyrlysis H permeance N permeance Selectivity Temp. ( C) (mle/m s Pa) (mle/m s Pa) [H /N ] Table. 5 는 것으로 판단된다. TG(Fig. ), FTIR(Fig. 3)과 BET 측정결과(Fig. 4, Fig. 5, Table 1)로부터 폴리실라잔을 이용한 마이크로 기공의 형 성은 비교적 성공적이라고 판단된다. 아직 무기고분자에 서 형성되는 기공의 원인은 정확하게 규명된 바는 없으나 참고문헌에 의하면 폴리실라잔과 같은 무기고분자가 열처 리시 생성되는 NH, CH 와 같은 미세 분자의 탈휘발화 (devlatilizatin)와 무기 고분자의 화학적 진화(evlutin)에 의해 기공이 형성된다고 보고되었다. 따라서 500 C와 00 C에서 열처리한 폴리실라잔 막의 기공은 열처리시 발 생하는 CH 가스에 의한 형성과 폴리실라잔이 비정형 SiCN 으로의 화학적 변화에 의한 결과라고 사료된다. Fig. 은 질소분위기 500 C에서 열처리하여 제조된 분 리막의 파단면 사진을 나타낸다. Fig. 의 (b) 지점은 폴 리실라잔과 SiC 나노 분말 혼합 용액에 의한 spin cating 공정으로 제조한 중간 층이며, (a)는 중간층 위에 폴리실 라잔을 spin cating한 후 500 C에서 열처리하여 제조한 분리막 층의 사진이다. Fig. 에서와 같이 무기막과 중간 층이 균일하게 spin cating이 되었으며, 비교적 결점이 없 는 상태임을 확인하였다. 이 무기막의 두께는 약 1~ µm 였다. Fig. 7은 질소분위기 500 C에서 열처리한 폴리실라잔만 을 채취하여 투과전자현미경(TEM)으로 관찰한 사진이다 ,19) 4 한국세라믹학회지 Fig. 7. TEM image f plysilazane pyrlysed at 500 C N atmsphere. 전체적으로 균일한 미세구조를 보여 주고 있으며, 제한시 야회절상(SAD)을 통하여 비정질 상으로 이루어 졌음을 관찰할 수 있었다. Table 에 알루미나 지지층, SiC 중간층, 폴리실라잔 막 으로 제조한 수소 분리막을 각각 500, 00, 700 C에서 열 처리한 후, 수소와 질소의 투과도 실험 결과를 나타내었 다. 수소의 투과도는 10 에서 10 mle/m.s.pa 범위로 비 교적 양호한 값을 보여주고 있으며, 선택도(selectivity f H /N ) 측면에서는 4 이상의 값을 보여주고 있다. 이는 아 직까지 분리도 측면에서 실제 상용화하기에는 낮은 값으 로 판단되지만, 이론적으로 누센 확산(Knudsen diffusin) 에 의한 수소와 질소의 선택도 3.75보다는 높은 값을 보 5
5 š. y» s³ ƒ»œ j» j, y»»œ w y. y,»œ y» t y» w š q w. wz» š x œ w p». 4.» š»»œ p sƒw. BET k SiCN s w»œ p ùkü. p s w»œ p sƒw» 500 C 00 C w r t (497.9, 14.1 m /g) ww 0)»œ j»(1 nm w) w»œj»(0.7, 0.7 nm) ùkü. w, ù SiC d s spin catingw x w 00 C w (H /N ) ƒ REFERENCES 1. S.-H. Hyun, Present Status and Preparatin Technlgy f Ceramic Membranes, Membrane J., 3 [1] 1-11 (1993).. H. Y. Ha, S. W. Nam, and S.-A. Hng, Fabricatin and Applicatin f Inrganic Membranes, Membrane J., 9 [] -8 (1999). 3. H. Takaba, K. Mizukami, M. Kub, A. fahmi, and A. Miyamt, Permeatin Dynamics f Small Mlecules Silica Membranes: Mlecular Dynamics Thrugh Study, AIChE Jurnal, 44 [] (1998). 4. Anil K. Prabhu and S. Ted Oyama, Highly Hydrgen Selective Ceramic Membranes: Applicatin t the Transfrmatin f Greenhuse Gases, J. Membrane Sci., (000). 5. G. Xmeritakis, S. Naik, C.M. Braunbarth, and C.J. Crnelius, Organic-templated Silica Membranes I. Gas and Vapr Transprt Prperties, J. Membrane Sci., (004).. T. M. Nenff, R. J. Spntak, and C. M. Aberg, Membranes» š s w w»œp 4 fr Hydrgen Purificatin: An Imprtant Step Tward a Hydrgen-Based Ecnmy, MRS bull., (00). 7. SU Lin and MU Harada, CO Separatin During Hydrcarbn Gasificatin, Energy, (005). 8. SU Kurungt, T. Yamaguchi, and S.-i. Naka, Rh/γ-Al O 3 Catalytic Layer Integrated with Sl-gel Synthesized Micrprus Silica Membrane fr Cmpact Membrane Reactr Applicatins, Catal. Lett., 8 [4] (003). 9. H. Uhlig, M. Frieβ, P. Lamparter, and S. Steeb, Lcal Order f Plymer Derived Amrphus Si x C y N z, J. Appl. Phys., 83 [11] (1998). 10. A Data Sheet fr the Si/C/N Precursr Plymer used in this Study is Available at: S. Brunauer, P. H. Emmet, and E. Teller, Adsrptin f Gases in Multimlecular Layers, J. Am. Chem. Sc., (1938). 1. B. C. Lippens and J. H. de Ber, Studies n Pre Systems in Catalysts V: The t Methd, J. Catal., 4 [3] (195). 13. G. Hrvath and K. Kawaze, Methd fr The Calculatin f Effective Pre Size Distributin in Mlecular Sieve Carbn, J. Chem. Eng. Japan, 1 [] (1983). 14. H. Suda, H. Yamauchi, Y. Uchimaru, I. Fujiwara, and K. Haraya, Preparatin and Gas Permeatin Prperties f Silicn Carbide Based Inrganic Membranes fr Hydrgen Separatin, Desalinatin, (00). 15. Jhn P. Dismukes, Jack W. Jhnsn, Jhn S. Bradley, and Jhn M. Millar, Chemical Synthesis f Micrprus Nnxide Ceramics frm Plysilazanes, Chem. Mater., 9 [3] (1997). 1. Zhe Chen, K. Prasad, C.Y. Li, S.S. Su, D. Gui, P.W. Lu, X. He, and S. Balakumar, Characterizatin and Perfrmance f Dielectric Diffusin Barriers fr Cu Metallizatin, Thin Slid Films, (004). 17. F. Bauer, U. Decker, A. Dierdrf, H. Ernst, R. Heller, H. Liebe, and R. Mehnert, Preparatin f Misture Curable Plysilazane Catings Part I. Elucidatin f Lw Temperature Curing Kinetics by FT-IR Spectrscpy, Prg. Org. Cat., 53 [3] (005). 18. J.H. Wang, P.T. Liu, T.S. Chang, T.C. Chang and L.J. Chen, Structural Characteristics and Interfacial Reactins f Lw Dielectric Cnstant Prus Plysilazane fr Cu Metallizatin, Thin Slid Films, (004). 19. Z. Li, K. Kusakabe, and S. Mrka, Preparatin f Thermstable Amrphus Si-C-O Membrane and its Applicatin t Gas Separatin at Elevated Temperature, J. Membrane Sci., (199). 0. Y. Iwamt, K. Sat, T. Kat, T. Inada and Y. Kub, A Hydrgen -Permselective Amrphus Silica Membrane Derived frm Plysilazane, J. Eu. Ceram. Sc., (005). 4«5y(009)
6.fm
Jurnal f the Krean Ceramic Sciety Vl. 45, N. 1, pp. 54~59, 2008. Expansin Characteristics f the Hydrated Sdium Silicate Yang Py Kng, H Yen Ch, and Dng S Suhr Department f Materials Science and Engineering,
More information( )-103.fm
Jurnal f the Krean Ceramic Sciety Vl. 46, N. 6, pp. 643~647, 2009. DOI:10.4191/KCERS.2009.46.6.643 Densificatin Behavir f C/C Cmpsite Derived frm Cal Tar Pitch with Small Amunt f Idine Additin Kwang Yun
More information46.fm
Jurnal f the Krean Ceramic Sciety Vl. 45, N. 5, pp. 285~289, 2008. Effect f Si:C Rati n Prsity and Flexural Strength f Prus Self-Bnded Silicn Carbide Ceramics Kwang-Yung Lim, Yung-Wk Kim, Sang-Kuk W*,
More information139.fm
Jurnal f the Krean Ceramic Sciety Vl. 43, N. 12, pp. 839~845, 2006. Manufacture f High Density Graphite Using Cal Tar Pitch Kwang Yun Ch, Kyung Ja Kim, Dh Hyung Riu, Kwang Hyun Lim,* Jung Il Kim,* In Chel
More information12.077~081(A12_이종국).fm
J. of Advanced Engineering and Technology Vol. 1, No. 1 (2008) pp. 77-81 y w» e wx Á w œw Fabrication of Ceramic Batch Composition for Porcelain by Using Recycled Waste Ceramic Powder Hyun Guen Han, and
More information17.fm
Jurnal f the Krean Ceramic Sciety Vl. 46, N. 1, pp. 35~40, 2009. Effects f Template Size and Cntent n Prsity and Strength f Macrprus Zircnia Ceramics Su-H Chae, Yung-Wk Kim, In-Hyuck Sng*, Hai-D Kim*,
More information< D B9DABBF3C8AF29BABCB5E52E666D>
Jurnal f the Krean Ceramic Sciety Vl. 46, N. 5, pp. 58~533, 009. DOI:10.4191/KCERS.009.46.5.58 Effects f β-sic Particle Seeds n Mrphlgy and Size f High Purity β-sic Pwder Synthesized using Sl-Gel Prcess
More information( )34.fm
Jurnal f the Krean Ceramic Sciety Vl 46, N 3, pp 75~81, 009 DOI:104191/KCERS00946375 Prus Materials frm Waste Bttle Glasses by Hydrthermal Treatment Dng-kyu Lim and Eun-Tae Kang Schl f Nan & Advanced Material
More information18.fm
Jurnal f the Krean Ceramic Sciety Vl. 45, N. 2, pp. 132~137, 2008. Pre Structure Mdificatin and Characterizatin f Prus Crdierite with Chemical Vapr Infiltratin (CVI) SiC Whisker Ik Whan Kim, Jun Gyu Kim,
More information( )-86.fm
Jurnal f the Krean Ceramic Sciety Vl. 46, N. 6, pp.g609~614, 009. DOI:10.4191/KCERS.009.46.6.609 Prperties f Lw Temperature Sintered Prus Ceramics frm Alumina-Zinc Brsilicate Glass Kwan S Kim, Ki Yung
More information( )-84.fm
Jurnal f the Krean Ceramic Sciety Vl. 7, N. 6, pp. 608~61, 010. DOI:10.191/KCERS.010.7.6.608 Synthesis and Characterizatin f Al-dped Uvarvite Green Pigments Sung-Gyu Se and Byung-Ha Lee Department f Materials
More information( )-100.fm
Jurnal f the Krean Ceramic Sciety Vl. 47, N. 6, pp. 491~497, 2010. DOI:10.4191/KCERS.2010.47.6.491 Temperature Dependence n Elastic Cnstant f SiC Ceramics Jng In Im, Byung-W Park, H-Yng Shin, and Jng-H
More informationfm
w y wz 9«( 1y) 34~40, 2006 J. f the Krean Sciety fr Envirnmental Analysis V/ w y Áy yá váy * w» ( )», *» w y œw Simultaneus Remval f Dixin and Nitrgen Oxide n V/ Catalyst Jun-Yub Lee, Sung-H Hng, Sung-Pill
More information14.fm
Journal of the Korean Ceramic Society Vol. 44, No. 2, pp. 93~97, 2007. Preparation of High Purity Si Powder by SHS Chang Yun Shin, Hyun Hong Min, Ki Seok Yun, and Chang Whan Won Engineering Research Center
More information103.fm
Jurnal f the Krean Ceramic Sciety Vl. 44, N., pp. 6~66, 007. Preparatin and Characterizatin f SiC Cated Graphite Fam Jae Jin Kyung, Jung Ju Kim, S Ryng Kim, W Teck Kwn, Kwang Yun Ch, and Yung Hee Kim Ec-Materials
More information29.fm
Jurnal f the Krean Ceramic Sciety Vl. 44, N. 3, pp. 169~174, 2007. A Study n the CVD Depsitin fr SiC-TRISO Cated Fuel Material Fabricatin Jun Gyu Kim, E-Sul Kum, D Jin Chi, Sung Sn Kim, Hng Lim Lee, Yung
More information47.fm
Jurnal f the Krean Ceramic Sciety Vl. 44, N. 5, pp. 284~289, 2007. Synthesis f Micrcellular Crdierite Ceramics Derived frm a Preceramic Plymer In-Hyuck Sng, Yung-Mi Kim, Hai-D Kim, and Yung-Wk Kim* Department
More information( )-103.fm
Jurnal f the Krean Ceramic Sciety Vl. 47, N. 6, pp. 546~55, 010. DOI:10.4191/KCERS.010.47.6.546 Micrstructure and Permeability Prperty f Si Bnded Prus SiC with Variatins in the Carbn Cntent In-Hyuck Sng,
More information58.fm
Jurnal f the Krean Ceramic Sciety Vl. 44, N. 6, pp. 35~330, 007. Effect f ph n Pre Characteristics in Synthesis f High Prus AlO(OH) Gel by Hydrlysis f Al and Na Mixed Slutin Byung-Ki Park, Dng Uk Che,
More information04.fm
w y wz 9«( 2y) 91~96, 2006 J. f the Krean Sciety fr Envirnmental Analysis üy wƒ w y k p ½» w w œw Adsrptin Prperties f the Activated Carbns fr Remving Harmful Gases in Indr Envirnments In-Ki Kim Department
More information10.fm
Jurnal f the Krean Ceramic Sciety Vl., N. 1, pp. 53~57, 2009. Effect f MgB Additin n Synthesis f Hexagnal Brn Nitride Dae-Jin Lee*, **, Mi-Jung Jee*, Byung-Hyun Chi*, Mi-Jai Lee*, Nam-Hee Ch**, and Mi-Sun
More information19(1) 02.fm
Korean J. Crystallography Vol. 19, No. 1, pp.7~13, 2008 Ÿ (ICISS) w š t w (2): t w y w œw Surface Structure Analysis of Solids by Impact Collision Ion Scattering Spectroscopy (2): Atomic Structure of Semiconductor
More information76.fm
Jurnal f the Krean Ceramic Sciety Vl., N. 8, pp. 5~50, 2007. Effect f Brn Carbide n the Mrphlgy f SiC Cnversin Layer f Graphite Substrate frmed by Chemical Vapr Reactin Hyun-Jung Hng, Dh-Hyung Riu, Kwang-Yun
More information78.fm
Jurnal f the Krean Ceramic Sciety Vl. 44, N. 8, pp. 424~429, 2007. Dual Phase Cnductive CO 2 Membranes: Mechanism, Micrstructure, and Electrical Cnductivity Shiw Lee, Ji Haeng Yu, and Sang Kuk W Energy
More information85.fm
Jurnal f the Krean Ceramic Sciety Vl. 44, N. 9, pp. 502~509, 2007. Examinatin n Applicatin f High-Perfrmance Cncrete using Fine Fly Ash as Replacement Material f Silica Fume Bum-Sik Lee, Sang-Kyu Kim,
More information( )43.fm
Jurnal f the Krean Ceramic Sciety Vl. 46, N. 3, pp.g301~305, 2009. DOI:10.4191/KCERS.2009.46.3.301 Nvel Phenl Resin Carbnizing Methd fr Carbn Interlayer Cating between Reinfrcing Fiber and Matrix in Fiber
More information106.fm
Jurnal f the Krean Ceramic Sciety Vl. 44, N. 11, pp. 639~644, 2007. Synthesis f Cbalt Oxide Free Black Clr Spinel Pigment Jun-H Kim*, Seng-H Lee, Man-Chul Suh*, and Byung-Ha Lee Department f Material Science
More information( )-70.fm
Jurnal f the Krean Ceramic Sciety Vl. 47, N. 5, pp. 401~406, 010. DOI:10.4191/KCERS.010.47.5.401 Synthesis f Pure and Prus CaOÁAl Clinker by Burning f Hydrates Du Hyuk Kim and Tae Wng Sng Department f
More information( )-47.fm
Jurnal f the Krean Ceramic Sciety Vl. 47, N. 4, pp. 302~307, 2010. DOI:10.4191/KCERS.2010.47.4.302 Effect f V-dping n Clur and Crystallizatin f Malayaite Pigments In-Dn J and Byung-Ha Lee Department f
More information16(5)-03(56).fm
Journal of Korean Powder Metallurgy Institute DOI: 10.4150/KPMI.2009.16.5.316 ƒ w Fe œ w Cu wy SPS (I) I. ƒ wy y Á xá½ Á½ *Á½{ a w œw, a w» gœ Production of Fe Amorphous Powders by Gas-atomization Process
More information(154번 김사라은경).fm
Jurnal f the Krean Ceramic Sciety Vl. 48, N. 4, pp. 316~322, 2011. DOI:10.4191/KCERS.2011.48.4.316 The Effect f Vacuum Annealing f Tin Oxide Thin Films Obtained by RF Sputtering Sun-Phil Kim, Yungrae Kim*,
More information( )-121.fm
Jurnal f the Krean Ceramic Sciety Vl. 48, N. 1, pp. 69~73, 011. DOI:10.4191/KCERS.011.48.1.069 Structural and Crrsive Prperties f ZrO Thin Films using N O as a Reactive Gas by RF Reactive Magnetrn Sputtering
More information44.fm
Jurnal f the Krean Ceramic Sciety Vl. 45, N. 5, pp. 263~267, 2008. Piezelectric Prperties and Phase Transitin behavirs f (Bi 1/2 ) 1 x Ca x Ceramics Yng-Hyun Lee*, **, Jeng-H Ch**, Byung-Ik Kim**, and
More information( )-40.fm
Jurnal f the Krean Ceramic Sciety Vl. 47, N. 3, pp. 237~243, 2010. DOI:10.4191/KCERS.2010.47.3.237 Synthesis f Sphene pink Pigment by Rice Husk Ash In-Dn J, Hyun-S Lee, and Byung-Ha Lee Department f Materials
More information7.fm
Jurnal f the Krean Ceramic Sciety Vl. 45, N. 1, pp. 60~64, 008. Sintering Behavir and Mechanical Prperty f B 4 C Ceramics Fabricated by Spark Plasma Sintering Kyung Hun Kim*,, Jae Hng Chae*, J Sek Park
More information48.fm
Jurnal f the Krean Ceramic Sciety Vl. 44, N. 5, pp. 60~65, 007. Develpment f Black Clr Spinel Pigment fr High Temperature Kwang-H Lee, Min-S Myung, and Byung-Ha Lee Department f Ceramic Engineering, Myungji
More information17.fm
Jurnal f the Krean Ceramic Sciety Vl. 44, N., pp. 110~115, 007. Micrwave Dielectric Prperties f BaNd - BaO-B -K O-SiO -xtio Glass Cmpsites Dng-Eun Kim,*, ** Sung-Min Lee,* Hyung-Tae Kim,* and Hyung-Sun
More information( )-95.fm
Jurnal f the Krean Ceramic Sciety Vl. 47, N. 6, pp. 509~514, 010. DOI:10.4191/KCERS.010.47.6.509 Effect f Template Cntent n Micrstructure and Flexural Strength f Prus Mullite-Bnded Silicn Caride Ceramics
More information16(5)-02(57).fm
Jurnal f Krean Pwder Metallurg Institute Vl. 16, N. 5, 2009 DI: 10.4150/KPMI.2009.16.5.310 /ekœ w TiC/C w w ¼ *Áw a w œ w œw, a Snthesis f TiC/C Cmpsite Pwder b the Carbthermal Reductin Prcess Gil-Geun
More information( )-106.fm
Jurnal f the Krean Ceramic Sciety Vl. 46, N. 6, pp. 648~652, 2009. DOI:10.4191/KCERS.2009.46.6.648 Prperties f the Electrlyte Separatrs fr Thermal Batteries Using SiOC Mat Kyung Hn Lim, Kwang Yun Ch, Dh
More information10(3)-09.fm
w y wz 10«3y 253~258 (2010.12.) Journal of Korean Society of Urban Environment ³ w Á» Á Á y w y œw (2010 11 22, 2010 12 9 k) Study on Determine of Detention Pond in Small Developed Area In-Soo Chang ½
More information(1)-01(정용식).fm
Textile Science and Engineering Vl. 48, N. 1, 2011 ƒ s j p y ky w xá½ Á½» 1 Á w œ w lœw, 1 w» w (2010. 12. 10. /2011. 1. 16. k) Analysis f Stabilizatin and Carbnizatin Behavirs f Ply(acrylnitrile) Fibers
More information( )-68.fm
Jurnal f the Krean Ceramic Sciety Vl. 47, N. 5, pp. 445~449, 010. DOI:10.4191/KCERS.010.47.5.445 Blating Mechanism f Artificial Lightweight Aggregate fr Recycling the Waste Glass Shin Hyu Kang and Ki Gang
More information( )-41.fm
Jurnal f the Krean Ceramic Sciety Vl. 47, N., pp. 244~248, 2010. DOI:10.4191/KCERS.2010.47..244 Fabricatin f Prus Calcium Phsphate by Using a Pre-Frm f Nature Material Sang-Jin Lee and Hn-Chel Lee Department
More information( )-129.fm
Jurnal f the Krean Ceramic Sciety Vl. 48, N. 1, pp. 80~85, 2011. DOI:10.4191/KCERS.2011.48.1.080 Effect f HF Treatment n the Crystallizatin Behavir f the Glass Cntaining Cal Bttm Ashes Sinae J and Seunggu
More information10.063~070(B04_윤성식).fm
J. of Advanced Engineering and Technology Vol. 1, No. 1 (2008) pp. 63-70 Mg-3%Al-1%Zn w ƒœ» y Á x*á **Á Á w œw *w s l I ûer ** t Effect of Thermomechanical Treatment on Microstructure and Mechanical Properties
More information17(1)-06.fm
Krean J. Crystallgraphy Vl., N. 1, pp.14~18, 006 LP-MOCVD w ZnO ù Ÿw p Á yá * w w» w» l Structural and Optical Prperties f ZnO Nanwires Synthesized by LP-MOCVD Prcess Yung-Jin Chi, Jae-Hwan Park and Jae-Gwan
More information( )80(배흥택).fm
Jurnal f the Krean Ceramic Sciety Vl. 6, N. 5, pp. 515~519, 009. DOI:10.191/KCERS.009.6.5.515 Estimatin f Triblgical Prperties n Surface Mdified SiC by Chlrine Gas Reactin at Varius Temperatures Heung-Taek
More information115.fm
Jurnal f the Krean Ceramic Sciety Vl. 44, N. 1, pp. 690~695, 007. Preparatin and Electrical Cnductivity f Scandia Stabilized Zircnia by using Ultrasnic Spray Pyrlysis Yung-Hn Chi, Dng-Hyun Peck, Yung-Chul
More information( )-59.fm
Jurnal f the Krean Ceramic Sciety Vl. 47, N. 4, pp. 319~324, 2010. DOI:10.4191/KCERS.2010.47.4.319 Preparatin f Screen Printable Cnductive MSi 2 Thick Films fr Ceramic Sheet Heater Bae-Yen Kim, Dng-Bin
More information1.fm
Jurnal f the Krean Ceramic Sciety Vl. 44, N. 1, pp. 58~64, 2007. Fabricatin f Li 2 ZrO 3 Membrane and Evaluatin n the Mechanical Prperties Befre and After CO 2 Separatin Sang Hyun Park, Shiw Lee,* Ji Haeng
More informationfm
w y wz 9«( 1y) 63~68, 2006 J. f the Krean Sciety fr Envirnmental Analysis Ÿ w k y w w w p xá **Á vá *Áy y*áy ** š w ywœw, *w» ( ) y, **» w y œw Water Inhibitin and Tungsten Lading Effect f SCR ver NMO
More information(164번 김도완).fm
Jurnal f the Krean Ceramic Sciety Vl. 48, N. 4, pp. 328~333, 2011. DOI:10.4191/KCERS.2011.48.4.328 Effect f Degraded Al-dped ZnO Thin Films n Perfrmance Deteriratin f CIGS Slar Cell Dwan Kim, Dng-wn Lee*,
More information( )-124.fm
Jurnal f the Krean Ceramic Sciety Vl. 48, N. 1, pp. 74~79, 2011. DOI:10.4191/KCERS.2011.48.1.074 Lightweight Prcelain using GHM(Glass Hllw Micrsphere) Geun-Hee Kim, Hy-Sung Chi, Jae-Hwan Pee, W-Sek Ch,
More information49.fm
Jurnal f the Krean Ceramic Sciety Vl. 45, N. 5, pp. 303~308, 2008. Synthesis f Mullite Pwders by the Geplymer Technique Se Gu Sn, Ji Hyen Lee, Jeng Mi Lee, and Yung D Kim GEOWHA E.S.R Research Center,
More information31.fm
Jurnal f the Krean Ceramic Sciety Vl. 44, N. 3, pp. 182~187, 2007. Micrwave Sintering f Gd-Dped CeO 2 Pwder Yung Gun Kim and Seuk-Bum Kim Department f Materials Science and Engineering, Gyenggi University,
More information17(1)-05.fm
Krean J. Crystallgraphy Vl. 17, N. 1, pp.4~3, 006 ƒƒ Zn 3 j q p e w y Á k Áy w œw The Effect f Additin n the Micrwave Dielectric Prperties f Zn 3 Ceramics H Byung Yun, Tae-Kun Lee and Yen Hwang Department
More information( )-119.fm
Jurnal f the Krean Ceramic Sciety Vl. 47, N. 6, pp. 54~58, 010. DOI:10.4191/KCERS.010.47.6.54 Physical Prperties f Pyrlized Oyster Shell Cnsisting f Prus CaO/CaCO and Phsphrus Remval Efficiency ChanWn
More information129.fm
Jurnal f the Krean Ceramic Sciety Vl. 45, N. 1, pp. 87~81, 008. Effects f Y O Additin n Densificatin and Thermal Cnductivity f AlN Ceramics During Spark Plasma Sintering Jae Hng Chae*, J Sek Park*, **,
More information132.fm
Jurnal f the Krean Ceramic Sciety Vl. 43, N. 1, pp. 805~811, 006. Effect f Oxidatin f Ni n the Micrstructure f Ni/YSZ Ande and Crack Frmatin in YSZ Electrlyte Layer fr SOFC Jun-Sil Lim,* Jng-Hn Chi,* and
More information( )78(이기성).fm
Jurnal f the Krean Ceramic Sciety Vl. 6, N. 5, pp. 78~8, 009. DOI:10.191/KCERS.009.6.5.78 Thermal Shck and Ht Crrsin Resistance f Si Fabricated by Nitrided Pressureless Sintering Kil H Kwak, Chul Kim,
More information51.fm
Jurnal f the Krean Ceramic Sciety Vl. 44, N. 5, pp. 279~283, 2007. Preparatin and Characterizatin f BCB Resin-BNT Cmpsite Substrate Materials Un-Yng Kim, Myung-Py Chun, Jung-H Ch, Byung-Ik Kim, Yng-Hyun
More information64.fm
Journal of the Korean Ceramic Society Vol. 44, No. 7, pp. 375~380, 2007. Tribological Properties of Carbon Layers Produced by High Temperature Chlorination in Comparison with DLC Coating Hyun-Ju Choi,
More information88.fm
Jurnal f the Krean Ceramic Sciety Vl 45, N 9, pp 544~548, 008 Frmatin f TiB -SiC Ceramics frm TiB -Plycarbsilane Mixtures Shin-Hyuk Kang, Dng-Hwa Lee, and Deug-Jng Kim Schl f Materials Science and Engineering,
More information(153번 김철영).fm
Jurnal f the Krean Ceramic Sciety Vl. 48, N. 4, pp. 269~277, 2011. DOI:10.4191/KCERS.2011.48.4.269 Effect f Varius Oxides n Crystallizatin f Lithium Silicate Glasses Chul Min Kim, Hyung Bng Lim, Yug Su
More information( )-123.fm
Journal of the Korean Ceramic Society Vol. 48, No. 1, pp. 63~68, 2011. DOI:10.4191/KCERS.2011.48.1.063 Effects of Substituting B 2 O 3 for P 2 O 5 on the Structure and Properties of SnO-P 2 O 5 Glass Systems
More information36.fm
Jurnal f the Krean Ceramic Sciety Vl. 45, N. 4, pp. 245~249, 2008. Prperties f Chemical Vapr Depsited ZrC Cating Layer using by Zircnium Spnge Materials Jun Gyu Kim,Y Yul Chi, Yung W Lee*, Ji Yen Park*,
More information14.531~539(08-037).fm
G Journal of the Korea Concrete Institute Vol. 20, No. 4, pp. 531~539, August, 2008 š x y w m š gj p { sƒ z 1) * 1) w w Evaluation of Flexural Strength for Normal and High Strength Concrete with Hooked
More information61.fm
Jurnal f the Krean Ceramic Sciety Vl. 45, N. 7, pp. 387~394, 2008. A Study n the Infrared Emissin Prperties and Freeze-thaw Resistance fr Calcined Clay by Carburizatin Treatment Kih Kim, Sangmyung Kim*,
More information63.fm
Jurnal f the Krean Ceramic Sciety Vl. 44, N. 7, pp. 393~402, 2007. Dense Plycrystalline SiC Fiber Derived frm Aluminum-dped Plycarbsilane by One-Pt Synthesis Dng-Geun Shin, Eun-Bae Kng, Dh-Hyung Riu, Yunghee
More information( )-114.fm
Jurnal f the Krean Ceramic Sciety Vl. 46, N. 6, pp. 662~667, 2009. DOI:10.4191/KCERS.2009.46.6.662 Fabricatin and Prperties f the SiC Candle Filter by Vacuum Extrusin and Ramming Prcess Myung-Kwan Shin,
More information(1)-04(오경화).fm
w œwz, 48«1y 2011 Textile Science and Engineering Vl. 48, N. 1, 2011»Ÿy w PVA v Ÿy w³p» Á y 1 w w š œw, 1 w ƒ w (2011. 1. 2. /2011. 2. 4. k) Phtactive and Antimicrbial Prperties f PVA Films Cntaining Varius
More information( )-97.fm
Jurnal f the Krean Ceramic Sciety Vl. 7, N. 6, pp. 57~577, 010. DOI:10.191/KCERS.010.7.6.57 Reactin Bnded Si N frm Si-Plysilazane Mixture Sung Jin Hng, Hy Chang Ahn, and Deug Jng Kim Schl f Advanced Materials
More information16(5)-04(61).fm
Journal of Korean Powder Metallurgy Institute DOI: 10.4150/KPMI.2009.16.5.326 ƒ w Fe œ w Cu wy SPS (II) II. w SPS p ½ *Á½ Á½{ a Á½ š b w œw, a w» gœ, b y œ Production of Fe Amorphous Powders by Gas-Atomization
More information( )67(홍성현).fm
Jurnal f the Krean Ceramic Sciety Vl. 46, N. 5, pp. 505~509, 009. DOI:10.4191/KCERS.009.46.5.505 Wear Prperties f Silicn Nitride Nan-Ceramics Jae-Hee Kim, Venkata Manj Kumar B, Wn-Sik Kim, and Seng-Hyen
More information45.fm
Jurnal f the Krean Ceramic Sciety Vl. 44, N. 5, pp. 73~78, 007. Micrwave Dielectric Prperties f CaZr(BO 3 Ceramics Myung-Hwa Nam, Hy Tae Kim,* Jng-Hee Kim,* and Sahn Nahm Department f Materials Science
More informationuntitled
[ ] œwz, 21«6y(2008) J. of the Korean Society for Heat Treatment, Vol. 21, No. 6, (2008) pp. 300~306 š y w p x*, **Á **Áy y* * ** w œ w œw, w» gœ Solid State Diffusion Brazing of the Aluminum Alloy Castings
More information41(6)-09(김창일).fm
269 Ar v Na 0.5 K 0.5 NbO 3 t ½ t,, ½ w,, ½ w»œw Surface Reaction of Na 0.5 K 0.5 NbO 3 Thin Films in Inductively Coupled Ar Plasma w t œwz J. Kor. Inst. Surf. Eng. Vol. 41, No. 6, 2008. < > Dong-Pyo Kim,
More informationfm
[ ] w wz DOI: 10.3740/MRSK.2009.19.12.692 Kor. J. Mater. Res. Vol. 19, No. 12 (2009) y INCONEL 718w Gas Tungsten Arc Welding» p sƒ ½»y Á *Á *Á y** ( ) d lj p wœq, *w wœ» q **( ) d lj p t Mechanical Properties
More information58.fm
Jurnal f the Krean Ceramic Sciety Vl. 4, N. 6, pp. 6~67, 008. Effects f High Energy Ball Milling n the Piezelectric Prperties f Lead-free (K 0.44 Ceramics Yung-Hyek Kim, Dae-Yung He, Wen-Pil Tai, and Jae-Shin
More information19.fm
Jurnal f the Krean Ceramic Sciety Vl. 45, N. 2, pp. 119~125, 2008. Synthesis f Inrganic-Organic Cmpsite Electrlyte Membranes fr DMFCs Eun Hyung Kim, Gug-H Yn, Sung Bum Park, Myung-Hn Oh, Sungjin Kim, and
More information35.fm
Jurnal f the Krean Ceramic Sciety Vl. 45, N. 4, pp. 208~213, 2008. Develpment f Helical Antenna using Micrwave ZST Ceramics Jng-Bae Lee, Yungjin Yk, H-Yng Sin, Hyung-Sun Kim*, Jng-In Im Simulatin Center,
More informationfm
Jurnal f the Krean Ceramic Sciety Vl. 46, N. 2, pp. 175~180, 2009. Effects f Glass Frit Size n the Sintering Behavir f Cu Terminatin Paste in MLCC Kyuha Lee, Byungjun Jen, Chang-Hn Kim, Yunggeun Kwn, Myungjun
More informationfm
Jurnal f the Krean Ceramic Sciety Vl. 46, N. 2, pp. 155~160, 2009. Thermally Stimulated Deplarizatin Current Test fr Reliability f X5R MLCC Ji-Yung Park, Jae-Sung Park, Yung-Tae Kim, and Kang-Hen Hur MLCC
More information< DC1A4C3A5B5BFC7E22E666D>
¼ (Jeong, Jung Chae)*, ý (Kim, Yoon Soo), (Shin, Woo Young), Þ Ñ (Park, Jong Man) ò ý ƒ Ð (Korea Evaluation Institute of Industrial Technology) (Shin, Jae-Heyg) Š æ (Ministry of Knowledge Economy) 1. :
More information116.fm
Jurnal f the Krean Ceramic Sciety Vl. 44, N. 12, pp. 696~702, 2007. Synthesis and Characterizatin f LSGM Slid Electrlyte fr Slid Oxide Fuel Cell Yung-Hn Seng, Seung Hwan J, P. MuralidharanS and D Kyung
More information8.fm
Jurnal f the Krean Ceramic Sciety Vl. 46, N. 1, pp. 16~23, 2009. Silver Cating n the Prus Pellets frm Prphyry Rck and Applicatin t an Antibacterial Media Y-Sep Han, Hyun-Jung Kim**, Yung-Sep Shin, Jai-K
More information17.fm
Jurnal f the Krean Ceramic Sciety Vl. 45, N. 2, pp. 126~131, 2008. Variatin f Phtluminescence in Zircnia Gel by Pyrlysis Kyusuk Han and Taegyung K Divisin f Materials Science and Engineering, Inha University,
More information( )41.fm
Jurnal f the Krean Ceramic Sciety Vl. 46, N., pp. ~9, 009. DOI:10.4191/KCERS.009.46.. Varius Filler Added CaO-Al -SiO Glass Cmpsites fr LTCC Substrate Applicatins Kwan S Kim, H Sn Jang, Hyunh Shin, In
More information18(3)-06(09).fm
Jurnal f Krean Pwder Metallurgy Institute DOI: 10.4150/KPMI.2011.18.3.256 Cu, Zn, Sn, Se yw p e w xá yá Á xá½³y* û w œw Effects f Ball Milling Cnditin n Sintering f Cu, Zn, Sn and Se Mixed Pwders Jng-Hen
More information304.fm
Journal of the Korean Housing Association Vol. 20, No. 3, 2009 yw s w - û - A Study on the Planning of Improved-Hanok - Focused on Jeon-Nam Province - y* ** z*** **** Kang, Man-Ho Lee, Woo-Won Jeong, Hun
More information(163번 이희수).fm
Journal of the Korean Ceramic Society Vol. 48, No. 4, pp. 323~327, 2011. DOI:10.4191/KCERS.2011.48.4.323 Electrical Properties and Temperature Stability of Dysprosium and Erbium Co-doped Barium Titanate
More information( )47.fm
Jurnal f the Krean Ceramic Sciety Vl. 46, N. 3, pp. 242~248, 2009. DOI:10.4191/KCERS.2009.46.3.242 Lw Temperature Synthesis f Frsterite Pwders by the Geplymer Technique Se Gu Sn *, **, Ji Hyen Lee**, Sang-Hn
More information82-01.fm
w y wz 8«( 2y) 57~61, 2005 J. of the Korean Society for Environmental Analysis p w w Á Á w w» y l Analysis of Influence Factors and Corrosion Characteristics of Water-pipe in Potable Water System Jae Seong
More information20(1) fm
Krean J. Crystallgraphy Vl. 20, N. 1, pp.1~8, 2009 Ÿ (ICISS) w š t w (3): t w y w œw Surface Structure Analysis f Slids by Impact Cllisin In Scattering Spectrscpy (3): Surface Structure f Ceramics Yen
More information605.fm
Journal of the Korean Housing Association Vol. 19, No. 6, 2008 y k y p w sƒ Care-giver s Needs and Evaluation on the Actual Condition of the Playgrounds in Child Care Facilities y* Choi, Mock-Wha x **
More information45.fm
Jurnal f the Krean Ceramic Sciety Vl. 45, N. 5, pp. 268~275, 2008. Influence f CrCl 3 in Sphene-Pink Pigments Hyun-S Lee and Byung-Ha Lee Department f Materials Science & Engineering, Myngji University,
More information43(5)-11.fm
Krean Chem. Eng. Res., Vl. 43, N. 5, Octber, 2005, pp. 616-620 기상공정에의한구형형상의헥사알루미네이트계형광체제조 Ç Ç içq Ç ly 143-701 ne v k 1 (2005 5 2p r, 2005 9 7p }ˆ) Preparatin f Hexaaluminate Phsphr Particles with Spherical
More information44(1)-01(이기안).fm
1 w t œwz J. Kr. Inst. Surf. Eng. Vl. 44, N. 1, 011. < > Fe-%Cr-5.8%Al w š y ½ a, ya, b, œ c, ½»c,» a* a w œw, bw»» c w œw High-Temperature Oxidatin Behavir f Fe-%Cr-5.8%Al Ally Sng-Yi Kim a, Sung-Hwan
More information93.fm
Journal of the Korean Ceramic Society Vol. 45, No. 10, pp. 625~630, 2008. Effect of Storage Conditions on the Setting Properties of Brushite Bone Cement Containing Granular β-tricalcium Phosphate Sun-Ae
More information