晶须增韧陶瓷基复合材料强韧化机制的评述

A REVIEW ON THE REINFORCING AND TOUGHENING MECHANISMS OF WHISKER REINFORCING CERAMIC MATRIX COMPOSITES

综述了晶须增韧陶瓷基复合材料的强韧化机制。近年来报道中常见的晶须的强化机制是载荷转移和基体预应力，韧化机制有裂纹偏转，晶须桥接和拔出，这些机制均决定于晶须／基体界面的性质。

The reinforcing and toughening mechanisms of whisker reinforcing ceramic matrix composites are reviewed in this paper. Recently it is pointed out that the reinforcing mechanisms of whisker are load transfer and matrix prestressing; the toughening mechanisms of whisker are crack deflection, whisker bridging and pull out. These mechanisms are dependent upon the characteristics of whisker/matrix interface. Finally, some problems necessary to be studied in this field are presented.