Tribological Properties of Spark Plasma Sintering TZ3Y20A–SrMoO4 Composites at Elevated Temperature

Tribological Properties of Spark Plasma Sintering TZ3Y20A–SrMoO4 Composites at Elevated... The chemical precipitation method was employed to prepare uniform spherical SrMoO4 powders. The ZrO2 (3 mol% Y2O3)–20 wt% Al2O3 (TZ3Y20A) matrix composites incorporating SrMoO4 were fabricated by spark plasma sintering, and their tribological properties were tested under dry sliding against Al2O3 balls from room temperature to 800 °C. Compared with TZ3Y20A ceramic, TZ3Y20A–20 wt% SrMoO4 composite has lower friction coefficients of 0.26–0.55 from room temperature to 800 °C. The wear rates are of the order of 10−7 mm3/(Nm) at room temperature and 200 °C and 10−5–10−4 mm3/(Nm) at 400, 600, and 800 °C. The lubricating film consisting mainly of SrMoO4, which spreads on the worn tracks during sliding progress, plays a critical role in the improvement in the tribological properties of the composites. Tribology Letters Springer Journals

Tribological Properties of Spark Plasma Sintering TZ3Y20A–SrMoO4 Composites at Elevated Temperature

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Springer US
Copyright © 2017 by Springer Science+Business Media, LLC
Materials Science; Tribology, Corrosion and Coatings; Surfaces and Interfaces, Thin Films; Theoretical and Applied Mechanics; Physical Chemistry; Nanotechnology
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