Process for modifying surfaces of hard materials and cutting too

Details Process for modifying surfaces of hard materials and cutting too Process for modifying surfaces of hard materials and cutting too

1998-02-10

2000-06-06

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Outside of mold sintering or vitrifying of shaped inorganic...

427226, 4273761, 264625, 264626, B24B 100

Patent

active

060714646

ABSTRACT:
A process for modifying the surface of a base metal formed from a hard material instead of forming a coating film thereon comprises compacting a powder of a hard material, baking the compacted product, dipping the baked product in an alkoxide containing titanium, and sintering the alkoxide-covered baked product in a nitrogen gas atmosphere. The sintered product has very hard titanium carbide, nitride or carbide-nitride particles deposited on the base metal surface. The particles are partly embedded in the base metal and partly protrude from its surface, and are, therefore, very unlikely to come off, while they withstand a temperature change very well.

REFERENCES:
patent: 3696707 (1972-10-01), Schedler et al.
patent: 4488882 (1984-12-01), Dausinger et al.
patent: 5223195 (1993-06-01), Kuwabara
patent: 5945167 (1999-08-01), Kuwabara et al.

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