Metal matrix composite material and method of manufacturing same
AssigneeThe Swatch Group Research and Development Ltd
InventorsJoel Porret, Yves Winkler
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Abstract
A composite material having a grainy appearance, this composite material including a metal matrix which represents, in terms of volume fraction, between 50 and 95% of the grainy composite material, the ceramic particles having a diameter that lies in the range 0.1 to 2 mm and which represent, in terms of volume fraction, between 50 and 5% of the composite material are dispersed in the metal matrix and form the remainder of this grainy composite material. A method for manufacturing a grainy synthetic material.
Claims23
A sintered composite material having a grainy appearance, the sintered composite material comprising:
- ceramic particles in a range of from 5 to 50 vol. %;
- and
- a metal matrix which is in a range of from 50 to 95 vol. % of the sintered composite material, the sintered composite material being a grainy composite material,
- wherein the metal matrix is obtained from a metal powder formed by a plurality of particles having a D90 value of a cumulative function of less than 100 μm,
- wherein the ceramic particles comprise corundum and having a diameter in a range from 0.1 to 2 mm are dispersed in the metal matrix, provide the sintered composite material with a grainy appearance, and form a remainder of the sintered composite material, and
- wherein one or more elements of the metal matrix from metal powder are diffused into the ceramic particles to form infused ceramic particles having a diffused distribution of the one or more elements into the infused ceramic particles.
Dependencies are inferred from the claim text.