The influence of ZrB[2]-SiC powders mechanical treatment on the structure of sintered ceramic composites

The effect of mechanical treatment by planetary ball milling on the properties of hot pressed ZrB[2] - SiC ceramics was studied. It was shown that material densification after mechanical treatment is finished at initial stages of sintering process. Addition of SiC leads to an essential increase of sample density to 99% of theoretically achievable for powder with 2% of SiC, as compared with ZrB[2] with the density less than 76%. It was demonstrated that all defects that were accumulated during mechanical treatment are annealed during hot pressing, and there are no changes of CDD values in sintered

Producing composite materials based on ZrB[2], ZrB[2]-SiC

The effect of mechanical treatment by planetary ball milling on the properties of hot pressed ZrB[2] - SiC ceramics was studied. It has been shown that material densification after mechanical treatment is finished at initial stages of sintering process. Addition of SiC causes a substantial increase in density of the sample to 99% of the theoretical powder containing 20% of silicon carbide, in comparison with samples ZrB[2] density not exceeding 76%. It has been shown that all defects which were accumulated during mechanical treatment anneal in hot pressure process and there are no any changes of CDD values in sintered ceramics

The influence of ZrB[2]-SiC powders mechanical treatment on the structure of sintered ceramic composites

The effect of mechanical treatment by planetary ball milling on the properties of hot pressed ZrB[2] - SiC ceramics was studied. It was shown that material densification after mechanical treatment is finished at initial stages of sintering process. Addition of SiC leads to an essential increase of sample density to 99% of theoretically achievable for powder with 2% of SiC, as compared with ZrB[2] with the density less than 76%. It was demonstrated that all defects that were accumulated during mechanical treatment are annealed during hot pressing, and there are no changes of CDD values in sintered