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采用细碳化物粉末（＜１μｍ）来提高金属陶瓷的抗弯强度，达到细化增韧的目的。研究表明：细粉表面能大，对烧结过程提供的驱动力大，并由于硬质相ＴｉＣ粉末的粒度分布范围窄，且较均等，颗粒之间容易接近热力学上的平衡，可获得细小而较均匀的显微组织，其线收缩率比粗粉的高，烧结体的密度也高于粗粉的，使金属陶瓷的抗弯强度明显地得到提高。
The use of fine carbide powder (<1μm) to improve the flexural strength of cermets to achieve the purpose of refining toughening. The results show that the surface energy of the fine powder is large and the driving force for the sintering process is large. Since the particle size distribution of the hard phase TiC powder is narrow and relatively uniform, the particles are easily approached to the thermodynamic equilibrium, The uniform microstructure has a higher linear shrinkage than the coarse powder and a higher density of the sintered body than the coarse powder, so that the flexural strength of the cermet is obviously improved.