The paper proposes the experimental process to determine the impact of low load to frictional coefficient of silicon – silicon couple by pin on disk model. The first experiment was performed with ranging of contact load from 2 mN to 30 mN. The coefficient of friction (COF) of Si – Si couple varies from 0,15 to 0,16 and are considered to be constant and the COF of SiO2 – SiO2 couple decreases from 0,35 to 0,24. When increasing the surface roughness, the COF of SiO2 – SiO2 couple changes from 0,15 to 0,30. Consequently, the impact of surface force on frictional properties of materials have to be involved during the prediction of the frictional behavior of materials. The impact of surface roughness and different frictional behaviors of silicon between low and normal load are also mentioned in the second experiment.
Micro-tribology, Low load, Coefficient of friction, Silicon material
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TẠP CHÍ KHOA HỌC VÀ CÔNG NGHỆ Giấy phép số37/GP-BTTTT (15/01/2021) Giấy phép sửa đổi, bổ sung số140/GP-BTTTT (05/3/2021) Đơn vị cấp phép:Bộ Thông tin và Truyền thông Cơ quan chủ quản:Trường Đại học Bách Khoa Hà Nội Phó tổng biên tập phụ trách:GS. Đinh Văn Phong