2002年
Mechanical properties of sintered Si3N4 from powder produced by fluidized-bed direct silicon nitridation
PROGRESS OF MACHINING TECHNOLOGY
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- 開始ページ
- 167
- 終了ページ
- 171
- 記述言語
- 英語
- 掲載種別
- 出版者・発行元
- AVIATION INDUSTRY PRESS
Si3N4 powder, produced by the fluidized-bed direct nitridation of silicon, was blended with water, compacted by pressure slip casting, and sintered under a pressurized nitrogen atmosphere. Compacts made from the powder showed roughly the same sinterability as those made from commercially available imide-process powder, yielding a hardness of Hv 1570, a fracture toughness of 7.2 MPa / m(1/2), and a three-point bending strength of 1062 MPa, highest values attainable with Si3N4. The powder produced by the fluidized-bed direct nitridation may replace the Si3N4 powder from the other process, when water is used for preparing slips. A processing rout is proposed, which may realize a substantial reduction of total cost for producing sintered Si3N4 parts.
- リンク情報
- ID情報
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- Web of Science ID : WOS:000180780900030