Method for producing hard-surfaced tools and machine components

Details Method for producing hard-surfaced tools and machine components Method for producing hard-surfaced tools and machine components

1983-07-27

1985-07-30

Robinson, Ellis P.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

428426, C23C 1700

Patent

active

045321493

ABSTRACT:
In one aspect, the invention comprises a method for producing tools and machine components having superhard crystalline-ceramic work surfaces. Broadly, the method comprises two steps: A tool or machine component having a ceramic near-surface region is mounted in ion-implantation apparatus. The region then is implanted with metal ions to form, in the region, a metastable alloy of the ions and said ceramic. The region containing the alloy is characterized by a significant increase in hardness properties, such as microhardness, fracture-toughness, and/or scratch-resistance. The resulting improved article has good thermal stability at temperatures characteristic of typical tool and machine-component uses. The method is relatively simple and reproducible.

REFERENCES:
patent: 3704166 (1972-11-01), Cuomo
patent: 3915757 (1975-10-01), Engel
patent: 4088799 (1978-05-01), Kurtin
patent: 4296144 (1981-10-01), Maby
G. B. Krefft et al., "Volume Expansion and Annealing Compaction of Ion Bombarded Single Crystal & Polycrystalline .alpha.Al.sub.2 O.sub.3 ", App Physics, vol. 49 (May '78).
A. Carnera et al., "Atom Location in Complex Lattices: Pb in .alpha.Al.sub.2 O.sub.3 ", Radiation Effects, vol. 49, p. 29 (1980).
A. V. Drigo et al., "Lattice Disorder in Implanted Insulators: Pb Implantation in .alpha.Al.sub.2 O.sub.3 ", Radiation Effects, vol. 33, pp. 161-171 (1977).

Affiliated with

Also associated with

Rating

Method for producing hard-surfaced tools and machine components does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for producing hard-surfaced tools and machine components, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing hard-surfaced tools and machine components will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2372429