Mechanical and tribological properties of WO2.9 and ZrO2 + WO2.9 composites studied by nanoindentation and reciprocating wear tests
نویسندگان
چکیده
Oxygen vacancies in WO2.9 yield to formation of easy shear planes and they can potentially be applied boundary lubrication conditions for reducing friction. Mechanical tribological properties pulsed electric current sintered monolithic were studied by nanoindentation nanoscratch, the composites ZrO2 + with reciprocating wear tests. Hardness at 25 °C was ~11 GPa reduced elastic modulus ~150 GPa. The ploughing dominated coefficient friction as between 0.09 0.24 when measured against a Berkovich diamond tip. composite n-ZrO2 10 vol% presented lowest CoF, rate 10?10 mm3/Nm under N load alumina ball (6 mm diameter) due acting solid lubricant.
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ژورنال
عنوان ژورنال: Wear
سال: 2021
ISSN: ['0043-1648', '1873-2577']
DOI: https://doi.org/10.1016/j.wear.2021.203920