Coefficient of friction of ceramic materials Coefficient of friction of ceramic materials Fig. This is because of their anisotropic layer structure, where the layers can be shifted against each other very easily. Such ceramic materials are graphite and boron nitride as well as molybdenum disulphide and talc . Since however not all materials are stable at high temperatures at air, the lubrication property in dependence of the temperature can change.
Boron nitride is applicable as high temperature lubricant up to approx.
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