熱間静水圧加圧法およびホットプレス法によるダイヤモンド分散アルミナ複合材料の作製とその特性

• 粂 正市

  名古屋工業技術研究所

• 鈴木 一孝

  名古屋工業技術研究所

• 金武 直幸

  名古屋大学大学院工学研究科材料プロセス工学

書誌事項

タイトル別名

• Diamond Dispersed Alumina Composites Fabricated under the Thermodynamically Not Stable Conditions for Diamond.
• ネツカン セイスイアツ カアツホウ オヨビ ホットプレスホウ ニ ヨル ダイヤモンド ブンサン アルミナ フクゴウ ザイリョウ ノ サクセイ ト ソノ トクセイ

抄録

Diamond/alumina composites were tried to sinter by both routes of hot pressing (HPing) and hot isostatic pressing (HIPing), in which both sintering conditions are thermodynamically unstable for diamond. When the composites were sintered by the HIPing under 150 MPa at 1423-1473 K for 10.8 ks and by the HPing under 36 MPa at 1673 K for 10.8 ks, the transformation of the diamond into graphite in the composites was not detected by an XRD analysis. Adding of a little magnesia and titania as sintering additives was very effective for the densification and hardening of the composites. Dispersing diamond was effective to restrain the alumina grain growth during the sintering. The Vickers hardness of the composites containing 10 vol.% diamond processed with the sintering additives was slightly increased as compared with that of the alumina with no diamond. It was revealed that the diamond/alumina composites could be successfully sintered by both hot isostatic pressing and hot pressing under thermodynamically unstable conditions for diamond.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 47 (3), 244-250, 2000

  一般社団法人 粉体粉末冶金協会

キーワード

• diamond
• alumina
• composite
• hot isostatic pressing
• hot pressing

詳細情報

• CRID: 1390282681284870400
• NII論文ID: 10005137230
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.47.244
• ISSN: 18809014
• ISSN: 05328799
• NDL書誌ID: 5321001
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5321001
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可