ZrO2 /（ZrO2 +Ni）夹层陶瓷热残余应力解析模型及优化设计
Analytical modelling of thermal residual stresses and optimal design of ZrO2/(ZrO2+Ni) sandwich ceramics
摘要：
陶瓷与金属的连接已广泛应用于要求高强度和优良隔热性的应用中。然而，由于陶瓷和金属的热膨胀系数不匹配而不可避免地产生的残余应力的评估是具有挑战性的，这对于层状非均匀材料的制造和表征是非常重要的。建立了考虑整体变形协调的简化分析模型，计算了ZrO 2/（ZrO 2 +Ni）夹层陶瓷的层间残余应力，与商用有限元软件计算结果吻合较好。研究了过渡层与中间层厚度比、过渡层层数对ZrO 2/（ZrO 2 +Ni）夹层陶瓷性能的影响，得到了最佳结构。
英文摘要：
The joining of ceramics with metals have been extensively used in applications requiring high strength and excellent heat insulation. However, evaluating the residual stress generated inevitably due to the mismatch in coefficients of thermal expansion of ceramic and metal is challenging, which is very important for fabrication and characterization of layered inhomogeneous material. A simplified analytical model considering the overall deformation compatibility is established to compute the interlaminar residual stresses of the ZrO2/(ZrO2+Ni) sandwich ceramics, which agrees well with the results obtained by the commercial finite element package. The effects of the thickness ratio of the transitional layer to the middle layer, and the number of transitional layers on the properties of the ZrO2/(ZrO2+Ni) sandwich ceramics are researched to obtain the optimal structure.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
