Proceed from different heatcoefficientofexpansion of two different metals for thermal bimetals with dish shape, the calculation modul was given.
从碟形双金属片的两块不同金属的热膨胀系数出发，设计了计算模型。
2
If there is a large difference in the coefficientofexpansion, there will be cracks in the ceramic layer or the phenomenon of exploding porcelain in the alternating heat and cold.
如果膨胀系数相差较大，在冷热交替的时候就会出现瓷层裂纹或爆瓷现象。
3
Synthetic diamond is competitive in heat dispersing materials, because it has high thermal conductivity, low coefficientof thermal expansion and lower price.