Process for producing a component and a component produced thereby having particular use in vehicle disc brakes

US6298957A · kind A · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Tilmann Haug · Weißenhorn, DE
• Steffen Rauscher · Herrenberg, DE
• Michael Scheydecker · Nersingen, DE

Key dates

• Filing date: Feb 23, 2000
• Grant date: Oct 9, 2001
• Expiry date: Feb 23, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C1/1073
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A component is made, in regions, of a ceramic-metal composite material. A porous sacrificial body produced from ceramic precursors is filled with softened metal and/or a metallic alloy at a predeterminable filling temperature at or above the softening temperature of the filling metal and under superatmospheric pressure. The filled sacrificial body is heated to or above a reaction temperature which is higher than the filling temperature, where a reaction between the filling metal (FMe) and the metal of the ceramic of the sacrificial body (CMe) is carried out, forming the ceramic-metal composite material comprising a ceramic phase and a metallic phase. The ceramic phase comprises CMe.sub.m B.sub.x and/or CMe.sub.n C.sub.y and/or CMe.sub.o CN and FMe.sub.p O.sub.3, and the metallic phase comprises an intermetallic compound of a metal of the ceramic (CMe) and a filling metal (FMe). The sacrificial body is filled with the filling metal (FMe) during pressure casting of the component. A shape at least close to the final shape of the component, comprising a filled sacrificial body and the intermediate element(s) free of the sacrificial body, is cast by the pressure casting tool, and the co…