与CaF2为烧结助剂相比，YF3为烧结助剂制备h-BN/AlN复相陶瓷

Compared with CaF2 as a sintering aid, YF3 is a sintering aid for the preparation of h-BN/AlN multiphase ceramics. This is due to the lower melting point of YF3 and the stronger volatility at high temperatures. Sintering aids can more easily promote the densification of ceramics, and at the same time make the content of grain boundary phases in the composite ceramics lower, thereby improving the performance of the composite ceramics.

Compared to CaF2 as a sintering aid, YF3 prepares h-BN/AlN fuphase ceramics for sintering additives with better performance due to the lower melting point of YF3 and the higher volatility of the yAE, which makes it easier to promote ceramic thickening as a sintering aid, while making the internal crystal boundary content of the complex ceramic seamounts lower, thus improving the performance of the complex ceramic.

Compared with CaF2 as sintering aid, yf3 as sintering aid has better performance in preparing h-BN / AlN composite ceramics, which is attributed to the lower melting point of yf3 and the stronger volatility at high temperature. It is easier to promote the densification of ceramics with yf3 as sintering aid, at the same time, the content of crystal boundary phase in the composite ceramics is lower, so as to improve the performance of composite ceramics.<br>