Functional Properties of In situ Magnetization Powdered Diamond Nanoclusters at Preparation Site

2016 Fiscal Year Final Research Report

• Project/Area Number: 26790019
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nanomaterials engineering
• Research Institution: Kyushu University
• Principal Investigator: Tominaga Aki 九州大学, 総合理工学研究院, 助教 (50590551)
• Research Collaborator: Magome Eisuke 九州シンクロトロン光研究センター, 協力研究員 ; Yamasaki Shigeto 九州大学, 大学院総合理工学研究院, 学術研究員 ; Mori Masami 愛媛大学, 工学部, 技術職員
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 物理成長気相法 / 同軸型アークプラズマ銃 / 超ナノ微結晶ダイヤモンド / 粉末 / 放射光測定 / 磁性材料 / 機能材料 / ナノコンポジット

Outline of Final Research Achievements

In this study, we fabricated Cr-doped Ultrananocrystalline Diamond (UNCD) powders using Coaxial arc plasma gun (CAPG). The CAPG (ULVAC APG-1000) equipped with a chromium-blended graphite target was operated in vacuum state and hydrogen atmospheres. For the evaluation of the UNCD crystallites, X-ray diffraction (XRD) and small angle X-ray scattering (SAXS) measurements were performed. The Cr-doped UNCD powders exhibited diamond 111 and 220 diffraction peaks in the XRD measurements. The average size of the crystallites depends on the concentration of Cr from SAXS results. Results of VSM and SQUID measurements show this Cr-doped nanodiamond powder is magnetic material.

Free Research Field

機能性ナノ材料創製とその材料分析