Development of Microstructure-Based Procedure for Evaluation of Durability of High Performance Materials Coated with Thin-Film

• Project/Area Number: 20560073
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Materials/Mechanics of materials
• Research Institution: Kyoto University
• Principal Investigator: HOSHIDE Toshihiko Kyoto University, エネルギー科学研究科, 教授 (80135623)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2008: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 材料設計 / プロセス / 物性 / 評価 / 被覆材料 / 無機系材料 / 耐久性評価 / 機械的特性 / スパッタリング / 保証試験 / 被膜特性 / 疲労寿命 / 曲げ強度 / 被膜硬さ / 表面粗さ

Research Abstract

In the present work, a borosilicate glass was coated with ceramic films by a radio-frequency (RF) magnetron sputtering method, and roughness and hardness were measured as surface characteristics of coated glass. A new procedure to estimate the strength of coated materials was proposed by incorporating relative hardness and roughness with sputtering time. The strength in experiments was well estimated by using the proposed procedure. Minimum fatigue life of each coated glass was well expressed as a power function of the mean strength.

Research Products

• [Journal Article] Evaluation of Strength of Borosilicate Glass Coated with Ceramic Materials by Sputtering (2010)
  • Author(s): Toshihiko Hoshide, Masato Hirano
  • Journal Title: Journal of Materials Engineering and Performance Vol.19, Issue4 Pages: 562-567
• [Journal Article] Evaluation of Strength of Borosilicate Glass Coated with Ceramic Materials by Sputtering (2010)
  • Author(s): Toshihiko Hoshide, Masato Hirano
  • Journal Title: Journal of Materials Engineering and Performance Volume: 19 Pages: 562-567
  • Peer Reviewed
• [Presentation] Strength Evaluation of Borosilicate Glass Coated with Thin Ceramic Films by Radio-Frequency Sputtering (2009)
  • Author(s): Toshihiko Hoshide
  • Organizer: The 12th International Conference on Fracture
  • Place of Presentation: Ottawa, Canada
  • Year and Date: 2009-07-15
• [Presentation] Strength Evaluation of Borosilicate Glass Coated with Thin Ceramic Films by Radio-Frequency Sputtering (2009)
  • Author(s): Toshihiko Hoshide, Masato Hirano
  • Organizer: Proceedings of the 12^<th> International Conference on Fracture (ICF 12)(Keynote Lecture)
  • Place of Presentation: Ottawa, Canada