Development of high temperature control technique using belt type high pressure apparatus and application for new materials synthesis

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K14395
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Inorganic materials/Physical properties
• 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)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: ベルト型高圧装置 / 高温発生 / 高圧合成

Outline of Final Research Achievements

The aim of this study is a development of high temperature control technique above 3000℃ by using belt type high pressure apparatus. The key issue to stabilize high temperature is optimization of design of furnace and thermal insulator in high pressure cell assembly. By using graphite tube furnace with hexagonal boron nitride (hBN) thermal insulator, high temperature experiments near 3000℃ can be carried out. Single crystals growth of transition metal di-chalcogenide by slow cooling from its molten state near 2600℃ was carried out. High temperature solid state diffusion process of carbon into hBN and boron into carbon were also studied. Optimization of capsule design for melting study of standard metal sample for temperature calibration is important for the future study.

Free Research Field

超高圧力材料科学