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US 5,494,760 AGranted
Object with an at least partly amorphous glass-metal film
AssigneeGebrueder Sulzer Aktiengesellschaft
InventorsGiorgio Arnosti, Werner Straub, Erich Bolle
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AssigneeGebrueder Sulzer Aktiengesellschaft
InventorsGiorgio Arnosti, Werner Straub, Erich Bolle
Estimating the term…
The object comprises a glass-metal film (1) with a metal matrix (2) which has solidified in an at least partly glass-like form and which may comprise hard particles (3, 3a) in the form of primary precipitates from the molten mass. The glass-metal film (1) is provided on at least one side (4) with a top layer (5) comprising a hard material which is harder than the glass-metal film (1). The top layer (5) may be formed by a base layer (7) with embedded hard material particles (8), e.g. of diamond or cubic boron nitride, or by a homogeneous hard material, e.g. diamond-like carbon. The result is a surface quality which can be separately influenced by the composition of the alloy of the glass-metal film (1). The object may be formed either as a parting tool or as a structural part with special wear and/or sliding properties.
Object comprising an at least partly amorphous continuous strip of a glass-metal film having a free surface and made of a metal selected from the group consisting of iron, nickel, chromium, cobalt, vanadium and a combination thereof, a metalloid selected from the group consisting of phosphorus, carbon, boron and a combination thereof, and a material selected from the group consisting of aluminum, silicon, tin, antimony, germanium, indium, beryllium and a combination thereof, and a top layer separately applied to and covering the free surface of the glass-metal film strip and comprising a material other than the material of the glass-metal film strip, the material of the top layer including a hard material which is harder than the glass-metal film.
An object comprising an at least partly amorphous glass-metal film made of a metal selected from the group consisting of iron, nickel, chromium, cobalt, vanadium and a combination thereof, a metalloid selected from the group consisting of phosphorus, carbon, boron and a combination thereof, and a material selected from the group consisting of aluminum, silicon, tin, antimony, germanium, indium, beryllium and a combination thereof, the film having inclusions of hard particles formed by primary precipitates from the glass-metal film, at least some of the hard particles having portions projecting beyond a surface of the glass-metal film, a base layer joined to the free surface of the glass-metal film and covering the projecting portions to form base layer protuberances where it covers the projecting portions, and additional hard particles embedded in and partially protruding beyond the base layer, whereby upon a removal of the base layer protuberances the projecting portions of the additional hard particles and the projecting portions together define an abrasive working surface of the object.
Dependencies are inferred from the claim text.