The influence of ZrB2-SiC powders mechanical treatment on the structure of sintered ceramic composites

S Buyakova, A Burlachenko, Yu Mirovoi, I Sevostiyanova, S Kulkov
2016 IOP Conference Series: Materials Science and Engineering  
The effect of mechanical treatment by planetary ball milling on the properties of hot pressed ZrB2 -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 ZrB2 with the density less than 76%. It was demonstrated that all defects that were accumulated during
more » ... cal treatment are annealed during hot pressing, and there are no changes of CDD values in sintered ceramics.
doi:10.1088/1757-899x/140/1/012006 fatcat:4hmsj4s3xvdoreob7nccrk7gyi