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基于热传导、热对流和热辐射理论建立了双陶瓷层热障涂层不透明和半透明物理模型,采用有限元ANSYS软件模拟了稳态温度场.双陶瓷层在不透明时,顶层厚度增加,顶层上表面温度线性增加,第二层和黏结层上表面温度线性降低.在半透明性弱时,与不透明情况类似.在半透明性强时,顶层上表面温度略低于不透明时,第二层上表面温度高于不透明时,黏结层上表面温度先快速后缓慢降低再保持不变,且远高于不透明时.
Based on the theory of heat conduction, convection and heat radiation, an opaque and translucent physical model of dual-layer ceramic thermal barrier coatings was established, and the steady-state temperature field was simulated by ANSYS software.When the dual ceramic layers were opaque, the top layer thickness increased, The temperature of the surface increases linearly and the temperature of the upper surface of the second layer and the bonding layer decreases linearly. When the translucency is weak, it is similar to that of opacity. When the translucency is strong, the temperature of the upper surface of the top layer is slightly lower than that of the opaque layer When the surface temperature is higher than that of opaque, the temperature of the upper surface of the adhesive layer decreases slowly and then remains unchanged, much higher than that of the opaque surface.