Net shape formation of sub-micron alumina with reduced flaws by high-speed centrifugal compaction process

被引：0
|
作者：
Hiroyuki Y. Suzuki
Hidenori Kuroki
机构：
[1] Hiroshima University,Graduate School of Engineering
来源：
Metals and Materials International | 2004年 / 10卷
关键词：
high-purity alumina; centrifugal force; defect removing; compaction;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A new compacting method for powder materials is presented. High-Speed Centrifugal Compaction Process (HCP) utilizes centrifugal force of about 10,000 g for the compaction. HCP is suitable for net shape compaction of fine sub-micron and nano-powders. HCP possesses a unique compacting mechanism that is different from other colloidal processes including Pressure Casting (PC), and has a number of useful characteristics. HCP has a higher compacting speed than PC, wide applicability for net shape formation, as well as a defect removing function. Because of homogeneous and flawless green microstructure, HCP alumina shows superior sinterability and higher strength and hardness than most of other aluminas.
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页码：185 / 191
页数：6
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