CHARACTERIZATION METHOD OF WHISKER ORIENTATION DEGREE IN WHISKER REINFORCED COMPOSITES

摘要

It plays an important role in studying whisker reinforced composites to measure and characterize the whisker orientation degree. In this paper, according to the structural characteristics of β-SiC whisker, a new method to determine the whisker orientation degree is presented in reference to the previous research results on texture. It can be calculated using the relative X-ray diffracted intensity between the (111) and (220) lines of β-SiC crystals. Taking several green bodies of SiC(w)/Si_3N_4 composites prepared by different forming processes as examples, the suitability of this method has been proved.