Development of densification process by environmental low load hydrothermal method without firing at high-temperatures

2021 Fiscal Year Final Research Report

• Project/Area Number: 20K20357
• Project/Area Number (Other): 18H05341 (2018-2019)
• Research Category: Grant-in-Aid for Challenging Research (Pioneering)
• Allocation Type: Multi-year Fund (2020); Single-year Grants (2018-2019)
• Review Section: Medium-sized Section 26:Materials engineering and related fields
• Research Institution: Osaka Prefecture University
• Principal Investigator: Nakahira Atsushi 大阪府立大学, 工学(系)研究科(研究院), 教授 (90172387)
• Co-Investigator(Kenkyū-buntansha): 吉田 要 一般財団法人ファインセラミックスセンター, その他部局等, 上級研究員 (00397522)
• Project Period (FY): 2018-06-29 – 2022-03-31
• Keywords: セラミックス / 水熱 / プロセシング / 無焼成 / 構造評価

Outline of Final Research Achievements

Development of a new improved hydrothermal process treatment using dissolution/reprecipitation mechanism was carried out for various ceramic materials (a zeolite, mesoporous material, nanoporous materials such as Metal Organic Framework, various layered materials, various oxide ceramics, etc.) as model materials. We conducted research and development with the goal of developing a process that optimizes densification without firing without firing. In particular, by performing a new and improved hydrothermal process treatment in the mid-low temperature range (100 to 300 ° C) under an aqueous solution solvent using the current hydrothermal process as the base processing, various processing factors can be optimized by optimizing various processing factors. We were able to develop a bulking process that enables densification of ceramics in the temperature range of 100 to 300 ° C.

Free Research Field

セラミックス

Academic Significance and Societal Importance of the Research Achievements

セラミックスは通常、高温処理による焼成プロセスにて製造されるが、本研究により得られた成果により高温焼成不要な改良型水熱プロセスを確立できると、エネルギー消費を低減し、更に高温での焼成にともなう二酸化炭素排出を抑えられる。これらの研究成果により、省エネルギープロセスの実現が可能となり、さらにカーボンフリーへの貢献が期待できるため、環境低負荷な製造プロセスの実現につながる重要な要素技術開発となり、持続可能な社会の実現に向け大きく貢献できる。