首页> 美国政府科技报告 >Fabrication of self-lubricating hard coatings by ion beam techniques. Annual progress report (Tribology Program) 1990, October 1989--September 1990
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Fabrication of self-lubricating hard coatings by ion beam techniques. Annual progress report (Tribology Program) 1990, October 1989--September 1990

机译:用离子束技术制备自润滑硬涂层。年度进展报告(摩擦学计划)1990年,1989年10月 - 1990年9月

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The research effort at UES, Inc. is focused at establishing optimum conditions for ion implantation/mixing of suitable additives into the surfaces of ceramics and metallic substrates. The additives chosen are: BaF(sub 2)/CaF(sub 2)/Ag, MoS(sub 2), WS(sub 2) and B(sub 2)0(sub 3). In the last Annual Progress Report, we reported results on our deposition and ion beam mixing of Ag/CaF2/BaF2 layered structure, and co-implantation of Mo(sup +) and S(sup +) into A1(sub 2)0(sub 3) and ZrO(sub 2) to synthesize MoS(sub 2). In the layered structure, the layer in contact with the substrate was Ag followed by CaF(sub 2) and BaF(sub 2). This has resulted in the higher friction coefficient and higher wear volume of the uncoated pins of A1(sub 2)0(sub 3) and ZrO(sub 2). It should be mentioned that the layered structure remained almost undisturbed after ion irradiation. It was shown by the group at Argonne National Laboratory that the ion beam assisted Ag coating reduces the friction coefficient of A1(sub 2)0(sub 3) quite dramatically at temperatures between room and 400(degree)C. Based on this result, we decided to form a bilayer structure of CaF(sub 2)/Ag with Ag on top and also a sputtered composite layer of BaF(sub 2) + Ag.

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