Carbon fiber-reinforced light metal composites
AssigneesAgency of Industrial Science and Technology, Ministry of Industrial Trade & Industry
InventorsAkio Shindo, Kuniaki Honjo
Life of this patent
Estimating the term…
Abstract
Carbon fiber-reinforced light metal composites comprising a light metal and carbon fiber having a three layer-coating, i.e. a layer of carbon, a protective layer against deteriorative reaction, and a wettability-improving layer superposed outwardly in the order mentioned, are provided. The carbon fiber-reinforced light metal composites are manufactured by binding carbon fibers having the aforementioned three layer-coating with a light metal.
Claims14
A carbon fiber-reinforced light metal composite, comprising at least one light metal selected from the group consisting of aluminum alloy, magnesium and magnesium alloy, and carbon fibers having a layer formed of at least 95% by weight of free carbon, a layer formed preponderantly of at least one compound selected from the group consisting of metal carbides, titanium nitride, and boron nitride, and a layer formed preponderantly of at least one compound selected from the group consisting of titanium-boron, boron, and silicon-boron superposed on said carbon fibers outwardly in the order mentioned.
A carbon fiber-reinforced light metal composite, comprising (1) coated carbon fibers embedded in (2) a light metal matrix, wherein:
- the said coated carbon fibers each comprise a carbon fiber core coated with three successive layers, wherein the first of the said layers comprises at least 95% by weight free carbon, the second of the said layers is made of at least one member selected form the group consisting of metal carbides, titanium nitride and boron nitride, and the third of the said layers is made of at least one member selected from the group consisting of titanium-boron, boron and silicon-boron compounds;
- wherein the said layers extend outwardly from the said carbon fiber in the order:
- first layer, second layer, third layer, and
- wherein the said light metal is at least one member selected from the group consisting of aluminum, aluminum alloys, magnesium and magnesium alloys.
Dependencies are inferred from the claim text.