Microstructure Dependence of Fracture Toughness and Hardness of Silicon Nitride

• UENO Kazuo

  Government Industrial Research Institute

Bibliographic Information

Other Title

• 窒化ケイ素の破壊靱性と硬度に及ぼす微構造の効果
• チッカ ケイソ ノ ハカイ ジンセイ ト コウド ニ オヨボス ビ コウゾウ

Abstract

Silicon nitride, doped with 2.5, 5.0, and 7.5wt% MgO, was hot-pressed under various temperature-time conditions. Fracture toughness and Vickers hardness were measured, and these properties have been correlated with the fraction of β phase determined by X-ray diffractometory. Comparison with a theoretical curve confirmed that the crack deflection at rod-like crystal contributed to the increase in fracture toughness.

Journal

• Journal of the Ceramic Society of Japan

  Journal of the Ceramic Society of Japan 97 (1121), 85-87, 1989

  The Ceramic Society of Japan

Keywords

• Silicon nitride
• Fracture toughness
• Vickers hardness

Details

• CRID: 1390282680254346368
• NII Article ID: 110002288498
• NII Book ID: AN10040326
• DOI: 10.2109/jcersj.97.85
• ISSN: 18821022
• ISSN: 09145400
• NDL BIB ID: 3221260
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3221260
• Web Site: http://www.jstage.jst.go.jp/article/jcersj1988/97/1121/97_1121_85/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed