IMPROVEMENT OF THERMAL SHOCK RESISTANCE OF CERAMIC COMPONENTS BY CRACK-HEALING

2010 Fiscal Year Final Research Report

• Project/Area Number: 21760067
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Materials/Mechanics of materials
• Research Institution: Yokohama National University
• Principal Investigator: NAKAO Wataru Yokohama National University, 学際プロジェクト研究センター, 特任教員(助教) (60361870)
• Project Period (FY): 2009 – 2010
• Keywords: 自己治癒材料 / 構造・機能材料 / 機械材料・材料加工 / エネルギー効率化 / 長寿命化 / 耐熱材料 / 熱疲労 / 構造健全性

Research Abstract

Availability of crack-healing on the thermal shock resistance of ceramic components was investigated. Using gas quenching method, the crack-healed alumina-18 vol% SiC composite, which has excellent self-healing ability, was applied to thermal shock of the arbitrary quenching rate. The procedure could give rise to the thermal stress fracture at high temperature. It is clearly found that the thermal shock resistance was improved by using crack-healing.

Research Products

• [Presentation] Potential Use of Crack- healing To Improve Thermal Shock Resistance Conference on Advanced Ceramics and Composites (2011)
  • Author(s): W. Nakao
  • Place of Presentation: Hilton Daytona Beach Resort.
  • Year and Date: 2011-01-27
• [Presentation] Improvement on Thermal Shock Resistance of Ceramic Component By Using Self-Healing (2010)
  • Author(s): W. Nakao
  • Organizer: ASME 2010 Conference on Smart Materials, Adaptive Structure and Intelligent Systems
  • Place of Presentation: Double Tree Hotel Philadelphia.
  • Year and Date: 2010-09-29
• [Presentation] セラミックスの耐熱衝撃性に及ぼす亀裂治癒の効果 (2009)
  • Author(s): 清水泰輔, 中尾航
  • Organizer: 2009年度日本機械学会年次大会
  • Place of Presentation: 岩手大学
  • Year and Date: 2009-09-16
• [Presentation] エネルギー機器における自己治癒材料の有用性 (2009)
  • Author(s): 中尾航
  • Organizer: 2009年度日本機械学会年次大会
  • Place of Presentation: 岩手大学
  • Year and Date: 2009-09-14