The results show that the hardness and elastic modulus increase as the sputter power increases.
经实验结果显示其硬度与弹性模数皆会随著溅镀功的增加而增加。
But the optical surfacing on SiC mirrors is extremely difficult because of its high hardness and elastic modulus.
但是，由于碳化硅材料所具有高硬度、高弹性模量等性质，使碳化硅质反射镜的光学加工难度很大。
Because of the excellent hardness and elastic module of diamond, it is difficult to get plastic deformation when sintering.
由于金刚石的硬度与弹性模量极高，在烧结时很难发生塑性变形。
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