Fabrication and some properties of textured alumina-related compounds by colloidal processing in high-magnetic field and sintering

被引:54
作者
Sakka, Yoshio [1 ]
Suzuki, Tohru S. [1 ]
Uchikoshi, Tetsuo [1 ]
机构
[1] Natl Inst Mat Sci, Nano Ceram Ctr, Tsukuba, Ibaraki 3050047, Japan
关键词
textured ceramics; alumina; slip casting; magnetic field; EPD; BISMUTH TITANATE CERAMICS; CONTROLLED-PORE SIZE; ELECTROPHORETIC DEPOSITION; MECHANICAL-PROPERTIES; CRYSTAL ORIENTATION; BETA-ALUMINA; MULLITE; MICROSTRUCTURE; PERFORMANCE; BODIES;
D O I
10.1016/j.jeurceramsoc.2007.09.039
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
081705 [工业催化]; 082905 [生物质能源与材料];
摘要
Recently to improve properties, highly microstructure controlled ceramics such as fine-grained, textured and laminated structures are required. We have demonstrated a new processing of textured ceramics with a feeble magnetic susceptibility by colloidal processing in a high-magnetic field and subsequent heating. As colloidal processing, slip casting and electrophoretic deposition (EPD) have been conducted successfully. Colloidal processing is known to be a powerful method for consolidating fine particles with a high density and homogeneous microstructure. Crystalline-textured controlled laminated alumina can be fabricated using EPD by varying the angle between the vectors of electric field and magnetic field. Also textured ceramics with complicated structure such as P-alumina and alumina-based nanocomposite can be fabricated by reaction sintering. The textured alumina-related compounds showed anisotropic properties depending on the crystal plane. The colloidal processing in a high-magnetic field confers several advantages and can be applied to many non-cubic ceramics. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:935 / 942
页数:8
相关论文
共 43 条
[41]
Fabrication of low cost fine-grained alumina powders by seeding for high performance sintered bodies [J].
Yoshizawa, Y ;
Hirao, K ;
Kanzaki, S .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2004, 24 (02) :325-330
[42]
Yoshizawa Y, 2001, J AM CERAM SOC, V84, P1392, DOI 10.1111/j.1151-2916.2001.tb00848.x
[43]
Texture development in Si3N4 ceramics by magnetic field alignment during slip casting [J].
Zhu, Xinwen ;
Suzuki, Tohru S. ;
Uchikoshi, Tetsuo ;
Nishimura, Toshiyuki ;
Sakka, Yoshio .
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 2006, 114 (1335) :979-987