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

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2008年 / 28卷 / 05期

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：

0805 ; 080502 ;

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

页码：935 / 942

页数：8

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