Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1984-04-30
1984-11-27
Lesmes, George F.
Stock material or miscellaneous articles
Composite
Of inorganic material
106 118, 106 119, 106 126, 420456, 420469, B06D 302
Patent
active
044851537
ABSTRACT:
Conductive thick film pigment-coated surfaces which possess desirable conductivity and solderability characteristics are formed from an alloy comprising a mixture of a nonnoble conductive metal, a noble metal and at least one oxidizable material. The oxidizable material is present in the alloy in an amount in the range of from about 5% to about 25% by weight, the nonnoble metal in an amount in the range of from about 94% to about 60% by weight and the noble metal in an amount in the range of from about 1% to about 15% by weight of the alloy. The desired product is prepared by admixing a nonnoble metal, an oxidizable material and a noble metal, arc-melting the mixture to form an alloy, grinding the arc-melted alloy to a powdered form, admixing the powder with the carrier binder, depositing said admixture on an inert surface, firing the admixture and surface in an oxygen-containing atmosphere at a temperature in the range of from about 500.degree. to about 950.degree. C. and fluxing the resultant conductive thick film pigment-coated surface with a zinc-chloride based flux to provide the desired product.
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Bradley Steven A.
Janikowski Daniel S.
Lesmes George F.
Nelson Raymond H.
Page II William H.
Swisher Nancy A. B.
UOP Inc.
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