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Properties of plane elliptic cubics and pencils of cubics derived by the quadratic transformation

✍ Scribed by Arnold Emch

Publisher
Springer Vienna
Year
1941
Tongue
English
Weight
355 KB
Volume
49
Category
Article
ISSN
0026-9255

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were heated to a sintering temperature between 1250 β€’ C and 1450 β€’ C at a heating rate of 300 β€’ C/min, with a holding time of 5 min in nitrogen atmosphere. The microstructure, phase constitution, microhardness and fracture toughness of the prepared PcBN were then studied. It was shown that the Si 3