Production of amorphous bulk of nitrides for structural material at ultra-high temperature

2020 Fiscal Year Final Research Report

• Project/Area Number: 19K22039
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 26:Materials engineering and related fields
• Research Institution: Tohoku University
• Principal Investigator: Zhu Hongmin 東北大学, 工学研究科, 教授 (80713271)
• Project Period (FY): 2019-06-28 – 2021-03-31
• Keywords: 超高温用材料 / シリコン / 窒化物 / アモルファス

Outline of Final Research Achievements

The application of ultra-high temperature materials to gas turbines and jet engines is anticipated for improving thermal efficiency. However, the improvement by metallic materials meets the limitation, and the application of non-metallic materials is investigated. In this study, a synthetic apparatus of nano powders of amorphous Si-B-C-N that has good mechanical properties and high oxidation resistance and is anticipated as ultra-high temperature materials has been developed. Synthetic experiment of nano powders of amorphous Si-B-C-N has been conducted and the product has been stably obtained.

Free Research Field

材料物理化学

Academic Significance and Societal Importance of the Research Achievements

本研究は超高温用構造材料に関して、従来とは全く異なる材料である窒化物系アモルファス材料を提案し、革新的な製造法によってこれを実用化することを目指した。学術的にもアモルファス生成に低温での強還元法を用いる点、ナノサイズ効果を利用する点、更に有機物前駆体を経ずにアモルファス窒化物を合成する点が独創的である。本材料の高温強度が確認され実用化されれば、熱機関の効率向上によって社会に大きく貢献できると考えられる。