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

• 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
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000); Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: ベルト型高圧装置 / 高温発生 / 高圧合成 / 高圧高温発生 / 断熱材 / 結晶成長 / 固溶体合成

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.

Research Products

• [Int'l Joint Research] Institut Néel,CNRS-Grenoble(フランス)
• [Journal Article] Weakly Trapped, Charged, and Free Excitons in Single-Layer MoS2 in the Presence of Defects, Strain, and Charged Impurities (2017)
  • Author(s): S. Dubey, S. Lisi, G.Nayak, F. Herziger, Van-Dung Nguyen, T. Le Quang, V. Cherkez, C. González, Y. J. Dappe, K. Watanabe, T. Taniguchi, L. Magaud, P. Mallet, Jean-Y. Veuillen, R. Arenal, L. Marty, J. Renard, N. Bendiab, J. Coraux, V. Bouchiat
  • Journal Title: ACS NANO Volume: 11 Issue: 11 Pages: 112069-112069
  • DOI: 10.1021/acsnano.7b05520
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] High-pressure synthesis of a 12CaO7Al2O3-12SrO7Al2O3 solid solution (2017)
  • Author(s): M.Miyakawa, K.Kobayashi, T.Taniguchi
  • Journal Title: Journal of the American Ceramic Society Volume: 100 Issue: 4 Pages: 1-6
  • DOI: 10.1111/jace.14743
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Mechanical Properties of Cubic-BN(111) Bulk Single Crystals Evaluated by Nanoindentation (2017)
  • Author(s): M.Deura, K. Kutsukake , Y. Ohno , I. Yonenaga, T.Taniguchi
  • Journal Title: PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS Volume: 6 Issue: 5 Pages: 1700473-1700473
  • DOI: 10.1002/pssb.201700473
  • Peer Reviewed
• [Journal Article] Crystallization behavior of cubic boron nitride from an amorphous BN precursor via high-pressure high-temperature treatment with controlled water addition (2016)
  • Author(s): T.Mochizuki, YYamamoto, N.Idota, F. Kawamura, T. Taniguchi, Y. Sugahara
  • Journal Title: J. European Ceram. Soc. Volume: 36 Issue: 15 Pages: 3565-3569
  • DOI: 10.1016/j.jeurceramsoc.2016.06.027
  • Peer Reviewed
• [Presentation] 高圧・高温プロセスによる窒化物系高密度相の機能探索 (2017)
  • Author(s): 谷口 尚
  • Organizer: 日本金属学会秋期シンポジウム
  • Invited
• [Presentation] High pressure synthesis of polymorphic phase of Boron Nitride;Impurity control and new functionalization (2017)
  • Author(s): T.Taniguchi
  • Organizer: Joint AIRAPT 26 & ACHPR 8
  • Int'l Joint Research / Invited
• [Presentation] High Pressure Synthesis of fine structure cubic boron nitride sintered bodies and their mechanical properties (2017)
  • Author(s): T.Taniguchi
  • Organizer: FiMPART. 2017
  • Int'l Joint Research / Invited
• [Presentation] Synthesis hexagonal Boron High pressure synthesis of polymorphic phase of Boron Nitride (2017)
  • Author(s): T.Taniguchi
  • Organizer: 2017 Spring MRS Meeting
  • Int'l Joint Research / Invited
• [Presentation] High pressure synthesis of boron nitride polymorphic phases and their applications (2016)
  • Author(s): T.Taniguchi
  • Organizer: Thermec 2016
  • Place of Presentation: Graz convention center Austlia
  • Year and Date: 2016-05-30
  • Invited
• [Presentation] 2次元遷移金属カルコゲナイド結晶の高品位化に向けた調査研究 (2016)
  • Author(s): 谷口 尚
  • Organizer: 第2回TIA光・量子計測シンポジウム
  • Place of Presentation: つくば国際会議場 つくば市 茨城県