FRACTURE TOUGHNESS;
DIAMONDS;
CHEMICAL VAPOR DEPOSITION (CVD);
FILMS;
INDENTATION;
D O I:
10.1111/j.1151-2916.1991.tb04317.x
中图分类号:
TQ174 [陶瓷工业];
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
The fracture toughness of chemically vapor-deposited diamond is estimated by a Vickers indentation method. Free-standing diamond films of 400-mu-m thickness are produced with plasma-enhanced chemical vapor deposition and highly polished for indentation testing. Indentation testing was performed with a microhardness tester using a load range of 5 to 8 N. The average fracture toughness is estimated as 5.3 +/- 1.3 MPA.m1/2.