2017 Fiscal Year Final Research Report

Exploration of co-relation between structure and function for the materials obtained under high pressure and high temperature process

Planned Research

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Project Area	Exploration of nanostructure-property relationships for materials innovation
Project/Area Number	25106006
Research Category	Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
Allocation Type	Single-year Grants
Review Section	Science and Engineering
Research Institution	National Institute for Materials Science
Principal Investigator	Taniguchi Takashi 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, グループリーダー (80354413)
Co-Investigator(Kenkyū-buntansha)	遊佐斉国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 主席研究員 (10343865) 村田秀信横浜市立大学, 国際総合科学部(八景キャンパス), 助教 (30726287) 宮川仁国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 主任研究員 (40552667) 吉田英弘国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 主幹研究員 (80313021)
Project Period (FY)	2013-06-28 – 2018-03-31
Keywords	高圧合成 / ナノ構造情報 / 機能性セラミックス / 硬質材料 / 外場焼結プロセス
Outline of Final Research Achievements	The purpose of this study is to obtain high quality functionalized materials　by realizing insights obtained by theoretical study and ultimate analysis. The experimental scheme is based on the high pressure and high temperature process, in-situ observation under high pressure and flush-sintering at ambient pressure. By cooperating with the researchers in theoretical and ultimate structural analysis field, we tried to figure out key factors to control superior properties in functionalized materials such as wideband gap materials, ion conductor, fluorescence materials, hard materials and heat resistive ceramics. Other major concern in this study is to realize the stability of compressed oxide and nitride ceramics under high pressure with respect to their structural phase transformations. Structural relaxation of ABO3 type oxide compounds from the high pressure phase were clarified. Unique metastable character of wrutzite boron nitride was clarified by ultimate ADF-STEM study.
Free Research Field	高圧材料科学