Fabrication of crystal-oriented ceramics by using composite particles added anisotropy of magnetic susceptibility in an innovative low magnetic filed

2016 Fiscal Year Final Research Report

• Project/Area Number: 26820299
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Inorganic materials/Physical properties
• Research Institution: Kanagawa Academy of Science and Technology
• Principal Investigator: Takahashi Takuma 公益財団法人神奈川科学技術アカデミー, 戦略的研究シーズ育成事業, 研究員 (30715991)
• Research Collaborator: TATAMI Junichi ; Iijima Motoyuki ; TANAKA Satoshi
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 磁場配向 / 窒化ケイ素 / ガラスファイバー / 窒化ホウ素 / グラフェン / 粒子複合化 / 複合粒子 / 微構造制御

Outline of Final Research Achievements

In this work, the objective is to fabricate crystal oriented ceramics by molding in a low static magnetic field using multilayered-graphene-coated nanocomposite particles. As seed particles, β silicon nitride was used. Hexagonal boron nitride particle having a plate shape and glass fiber were also used to verify general versatility of the process. As results, coating multilayered-graphene on the surface of various particles and their orientation control were achieved by applying a mechanical treatment. Additionally, the c-axis oriented silicon nitride ceramics and resin composite including a-axis oriented boron nitride were obtained by applying a low magnetic field of 0.5T during a casting. It was confirmed that the orientation of glass fiber resulted from Δχ due to multilayered graphene by estimating Δχ from observation of orientation behavior and volume fraction of graphene.

Free Research Field

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