Partially composite lightweight metal product and preform for producing the same
AssigneeMazda Motor Corporation
InventorMakoto Fujita
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Abstract
A porous preform for manufacturing partially composite lightweight metal products including at least a sliding surface as composite part is made of a hard material which comprises a sintered mixture comprising TiO2 particles, short ceramic fibers and whiskers, and SiC particles having an average particle size of approximately 20 to 100 μm. The partially composite lightweight metal product produced from the porous preform is provided with superior wear resistance and high strength and achieves increasing the coefficient of friction even though it is large in size, so as to keep a composite part of the composite lightweight metal product such as a sliding surface of a brake rotor remain even and smooth for a long period of time.
Claims6
A porous preform which is made of a hard material and from which a partially composite lightweight metal products including at least a sliding surface as composite part is produced, said hard material comprising:
- a sintered mixture comprising:
- TiO2 particles;
- at least one of short ceramic fibers and whiskers;
- and
- SiC particles having an average particle size of approximately 20 to 100 μm, wherein said SiC particles are sintered in said TiO2 particles in a form of sea-island structure.
Dependencies are inferred from the claim text.