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根据对热压烧结陶瓷硬质合金复合片的热胀失配分析 ,计算了在一定厚度比和烧结条件下的临界热膨胀系数差 ,解决了陶瓷硬质合金复合片制备中产生龟裂和界面开裂的难题。采用热压烧结工艺制备了上层为具有一定厚度的陶瓷、下层为硬质合金的陶瓷硬质合金复合片。
Based on the analysis of the thermal expansion mismatch of the hot-pressed ceramic cemented carbide composite sheet, the critical thermal expansion coefficient difference at a certain thickness ratio and sintering conditions was calculated, and the cracking and interface cracking in the preparation of the ceramic cemented carbide composite sheet were solved The problem Hot-pressed sintering process was used to prepare the upper layer with a certain thickness of the ceramic, the lower layer of cemented carbide ceramic cemented carbide composite sheet.