Abstract
Different surface finish of ZrB2 was generated by machining the hot pressed monolithic ZrB2 by wire-electrical discharge machining (EDM) as well as conventional diamond grinding. The effect of surface finish on strength was studied. Our results showed that wire-EDM produced very high roughness (Ra = 1.2) as compared with diamond grinding (Ra = 0.2 and 0.33) which resulted into lower strength of ZrB2 for EDM machined sample as compared to diamond ground samples.
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