Tarnish resistant gold colored alloy

Details Tarnish resistant gold colored alloy Tarnish resistant gold colored alloy

1994-05-03

1995-04-25

Roy, Upendra

Alloys or metallic compositions

Containing over 50 per cent metal but no base metal

Copper containing

148419, 148442, C22C 3002

Patent

active

054096634

ABSTRACT:
An indium-free, gold-colored, tarnish and corrosion-resistant alloy having no greater than 10% by weight gold and a color value, as measured according to the Cielab Color Measurement System, of approximately L=87.4, a=1.1, b=15.3. The alloy comprises 28-35% copper, 19.5-22.5% silver, 6-11% palladium, 22-32% zinc, 0.1-1% aluminum, and 0.5-3% platinum.

REFERENCES:
patent: 4370164 (1983-01-01), Harris et al.
patent: 4539176 (1985-09-01), Cascone
patent: 4557895 (1985-12-01), Karamon et al.
patent: 4804517 (1989-02-01), Schaffer et al.
patent: 4865809 (1989-09-01), Davitz
patent: 4895701 (1990-01-01), Davitz
patent: 4948557 (1990-08-01), Davitz
patent: 4992297 (1991-02-01), van der Zel
Agarwal and Raykhtsaum, "Color Technology for Jewelry Alloy Applications", The Santa Fe Symposium on Jewelry Manufacturing Technology 1988, pp. 229-243. (no month avail.).
Raykhtsaum and Agarwal, "Tarnish Behavior of Low Karat Jewelry Alloys-Quantitive Analysis", The Santa Fe Symposium on Jewelry Manufacturing Technology 1989, pp. 115-129 (no month avail.).

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