Patent ID: 9051967
Filing Date: 2015-06-09
Classification: C23C,F16C

Abstract:
1. A slide member comprising: an Al-based bearing alloy layer primarily comprising Al and including Si particles; and wherein the Al-based bearing alloy layer includes 1.5 mass (%) or more of Si particles and a balance consisting substantially of Al; a DLC layer laminated over the Al-based bearing alloy layer; wherein at least some of the Si particles included in the Al-based bearing alloy layer are exposed on a DLC layer side surface, and wherein the Si particles exposed on the DLC layer side surface occupy a total area percentage equal to or greater than 1(%) and equal to or less than 10(%), and wherein among the Si particles exposed on the DLC layer side surface, an area of Si particles having a particle diameter less than 4 (μm) occupies 20(%) to 60(%) of a total area of the Si particles exposed on the DLC layer side surface, whereas an area of Si particles having a particle diameter ranging from 4 (μm) to 20 (μm) occupies 40(%) or more of the total area of the Si particles exposed on the DLC layer side surface, and wherein A≧0.5×T, where A (%) represents the total area percentage of the Si particles exposed on the DLC layer side surface of the Al-based bearing alloy layer and T (μm) represents a thickness of the DLC layer.