Abstract
Effects of solid lubricants on phase behaviors of lithium soap/hydrocarbon greases were investigated by differential thermal analysis (DTA). The changes in the shape and size of the soap micelles in the grease were examined with an electron microscope. The first prime phase transition temperature that was observed for the grease without molybdenum disulfide (MoS2) prepared in nitrogen atmosphere did not appear in the grease with MoS2. It was found that phase transition temperatures of a commercial grease prepared in air were lowered due to the presence of solid lubricants. In addition, solid lubricants greatly affected the formation of soap micelles in the grease.
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