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推导了由于热膨胀系数不同，在热压烧结陶瓷／硬质合金复合片内引起的残余正应力和界面剪应力计算公式；分析了平行和垂直于复合片界面裂纹产生的原因及影响因素，所得结论对双材料的设计有一定的指导作用
The calculation formulas of residual normal stress and interfacial shear stress in the hot-pressed ceramic / cemented carbide composite sheet are deduced due to the different thermal expansion coefficients. The causes and influencing factors of the crack parallel and perpendicular to the composite sheet interface are analyzed. The design of bi-material has a guiding role