Effects of Target-Substrate Distance on Growth and Mechanical Characteristics of Nanodiamond Composite Coatings Fabricated by Coaxial Arc Plasma Deposition on WC-Co Substrate

DOI 機関リポジトリ (HANDLE) オープンアクセス
  • Mohamed Ragab Diab
    九州大学大学院総合理工学府量子プロセス理工学専攻
  • Egiza Mohamed
    Department of Mechanical Engineering, Kafrelsheikh University
  • 村澤 功基
    九州大学大学院総合理工学府量子プロセス理工学専攻 オーエスジー株式会社
  • 楢木野 宏
    九州大学大学院総合理工学研究院
  • 吉武 剛
    九州大学大学院総合理工学研究院

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説明

Nanodiamond composite (NDC) coatings fabricated by coaxial arc plasma deposition (CAPD) exhibit exceptional structural and mechanical properties, making them promising candidates for advanced cutting tool applications. However, the influence of certain key factors, such as the target-substrate distance (TSD), on the growth and characteristics of NDC films remains unclear. TSD affects the substrate ion current and ion bombardment energy, intimately linked to the structure and tribo-mechanical properties of the protective coatings. Therefore, NDC films were fabricated at diverse TSD values ranging from 5 to 50 mm, and their adhesion, hardness, and modulus of elasticity were investigated. The results revealed that growth and adhesion were significantly affected by TSD, whereas hardness and elastic modulus remained constant (from 10 to 50 mm TSD). The film’s thickness declined from 21.88 to 1.8 μm with increasing TSD, and the film quality improved due to macroparticle elimination. Notably, the sample prepared at a distance of 10 mm exhibited the best adhesion resistance, together with a high thickness of 11.45 μm with a hardness of around 50 GPa. The target-substrate distance was revealed to have a crucial potential for determining the structural and mechanical characteristics of NDC films deposited by CAPD.

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詳細情報 詳細情報について

  • CRID
    1390579830889763456
  • DOI
    10.5109/7157981
  • HANDLE
    2324/7157981
  • ISSN
    24341436
  • 本文言語コード
    en
  • 資料種別
    conference paper
  • データソース種別
    • JaLC
    • IRDB
    • Crossref
    • OpenAIRE
  • 抄録ライセンスフラグ
    使用可

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