ceramic whisker 以特种陶瓷原料为原料制造的晶须有单晶体纤维和多晶纤维(一般由5×10-3～5×10-2μm的小晶粒构成)。 有氧化铝、碳化硅(SiC)、碳化硼(B4C)、二氧化锆、氮化铝(A1N)和氮化硅(Si3N4)晶须等。具有高强度、高弹性模量、低密度、高耐热等性能。按纤维的长度分为长纤维、定长纤维和短纤维等。按制造工艺方法不同，分为晶体生长法、气相沉积法、前驱体法、化学转化法、熔融法等。用作增韧补强材料。
羟基磷灰石(HA)晶须具有较低的位错密度，较高的抗拉性能，可用作生物陶瓷的增韧材料。
Hydroxyapatite (ha) whisker has lower dislocation density and higher tensile strength, therefore it could be used as toughening material in bioceramic.
综述了晶须增韧陶瓷基复合材料的强韧化机制。
The reinforcing and toughening mechanisms of whisker reinforcing ceramic matrix composites are reviewed in this paper.
目前很难对晶须增韧陶瓷复合材料的断裂韧性进行理论计算。
It is very difficult to compute fracture toughness for silicon carbide whisker reinforced ceramic composite theoretically so far.
应用推荐