2016年1月
Anisotropic properties of highly textured porous alumina formed from platelets
CERAMICS INTERNATIONAL
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- ,
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- 巻
- 42
- 号
- 1
- 開始ページ
- 1453
- 終了ページ
- 1458
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.ceramint.2015.09.090
- 出版者・発行元
- ELSEVIER SCI LTD
Alumina platelets and a pulsed electric current sintering (PECS) technique were used to form porous alumina with highly oriented grains in one direction. A slurry consisting of alumina platelets, distilled water, and organic binders was spread over a gypsum board to form a green sheet. Pellets 14 mm in diameter were punched from the sheet and preheated at 800 degrees C to burn off the binders. The preheated pellets were placed in a carbon die, which was then positioned within the PECS device. After heating at 1400 degrees C and 30 MPa for 5 min, porous alumina with 80.8% density was obtained. Parallel to the pressing direction, the thermal conductivity and bending strength of the porous body were 22.4 W m(-1) K-1 and 404 MPa, respectively. Perpendicular to the pressing direction, on the other hand, the thermal conductivity and bending strength of the porous body were 10.8 W m(-1) K-1 and 217 MPa, respectively. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.ceramint.2015.09.090
- ISSN : 0272-8842
- eISSN : 1873-3956
- Web of Science ID : WOS:000365367000057