Lubenets, S.V.; Natsik, V.D.; Fomenko, L.S.; Kaufmann, H.J.; Bobrov, V.S.; Izotov, A.N.
(Физика низких температур, 1997)
The data for the microhardness and fracture toughness of Y–Ba–Cu–O and Bi-based single crystals and ceramics in the temperature range 77–293 K are presented and analyzed. Our study reveals that the microhardness of high ...