Compositions: ceramic – Ceramic compositions – Refractory
Reexamination Certificate
2006-07-25
2006-07-25
Group, Karl (Department: 1755)
Compositions: ceramic
Ceramic compositions
Refractory
C501S087000, C051S307000
Reexamination Certificate
active
07081424
ABSTRACT:
The present high-strength, highly thermally conductive sintered compact of cubic boron nitride contains cubic boron nitride (cBN) grains and a binder binding the grains. More specifically, it is formed of at least 40% by volume and at most 85% by volume of cBN grains, and a binder corresponding to the remainder and formed of at least one selected from the group consisting of a nitride, a carbide, a boride, and an oxide of an element belonging to the 4a, 5a and 6a groups of the periodic table and a solid solution thereof, an aluminum compound, and an unavoidable impurity, and the cBN grains contain at most 0.03% by mass of Mg and at least 0.001% by mass and at most 0.05% by mass of Li.
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Fukaya Tomohiro
Kukino Satoru
Okamura Katsumi
Uesaka Shinya
Fasse W. F.
Fasse W. G.
Group Karl
Sumitomo Electric Hardmetal Corp.
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