Cabot Microelectronics Corporation , the world's leading supplier of chemical mechanical planarization polishing slurries and a growing CMP pad supplier to the semiconductor industry, today provided information related to preliminary financial results for its third quarter of fiscal 2015, which ended June 30. The company currently expects to report revenue of approximately $97 million, gross profit margin of approximately 50 percent of revenue, and diluted earnings per share of approximately $0.39.