Анотація:
The peculiarities of the infiltration phenomena at HP-HT sintering of the CBN powders of
7–10 mkm particles sizes have been studied. The penetration of the impurities (O, Si, Al) in a sintering
body takes place from the Al2Si4O10(OH)2 (pyrophyllite) melt. The contamination of the sintered
material as a result of out-of-control infiltration adversely affects on its physicо-mechanical
properties.