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US 6,472,058 B2Granted
Fiber-composite material and method for producing the same
AssigneesNGK Insulators, Ltd., Across Co., Ltd.
InventorsShigeru Hanzawa, Tsuneo Komiyama, Takao Nakagawa, Mihoko Yamashita
Life of this patent
Estimating the term…
Abstract
A fiber-composite material includes: 55-75 wt % of carbon, 1-10 wt % of silicon and 10-50 wt % of silicon carbide, and the matrices including Si—SiC-based materials formed integrally among assemblages of yarns include carbon fibers integrally formed and combined three-dimensionally so as not to separate from each other. The fiber-composite material has a coefficient of kinetic friction of 0.05-0.6 and a porosity of 0.5-10%.
Claims10
A fiber-composite material comprising:
- a plurality of first yarns arranged in a first layer, each first yarn extending in a first longitudinal direction, and comprising a bundle of carbon fibers and an additional carbon component;
- a plurality of second yarns arranged in a second layer, each second layer extending in a second longitudinal direction and comprising a bundle of carbon fibers and an additional carbon component, said second longitudinal direction being substantially perpendicular to said first longitudinal direction;
- and
- a Si—SiC matrix for three-dimensionally integrating the yarns to one another, said matrix being interposed between adjacent yarns within each layer and between yarns of adjacent layers;
- wherein said fiber-composite material is formed by method comprising the steps of:
- forming a plastic coating around each of said first and second yarns;
- stacking the plurality of first and second yarns on one another along said first and second longitudinal directions, respectively, to form an intermediate product;
- heating the intermediate product to burn the plastic coatings and form a burned product;
- and
- infiltrating molten silicon into the pores of the burned product to form said fiber-composite material;
- and
- wherein said fiber-composite material contains 55-75 wt % carbon, 1-10 wt % silicon and 10-50 wt % silicon carbide, and wherein said fiber-composite material has a coefficient of kinetic friction of 0.05-0.6 and a porosity of 0.5-10%.
9 more elements
A sliding material including a fiber-composite material comprising:
- a plurality of first yarns arranged in a first layer, each first yarn extending in a first longitudinal direction, and comprising a bundle of carbon fibers and an additional carbon component;
- a plurality of second yarns arranged in a second layer, each second layer extending in a second longitudinal direction and comprising a bundle of carbon fibers and an additional carbon component, said second longitudinal direction being substantially perpendicular to said first longitudinal direction;
- and
- a Si—SiC matrix for three-dimensionally integrating the yarns to one another, said matrix being interposed between adjacent yarns within each layer and between yarns of adjacent layers;
- wherein said fiber-composite material is formed by method comprising the steps of:
- forming a plastic coating around each of said first and second yarns;
- stacking the plurality of first and second yarns on one another along said first and second longitudinal directions, respectively, to form an intermediate product;
- heating the intermediate product to burn the plastic coatings and form a burned product;
- and
- infiltrating molten silicon into the pores of the burned product to form said fiber-composite material;
- and
- wherein said fiber-composite material contains 55-75 wt % carbon, 1-10 wt % silicon and 10-50 wt % silicon carbide, and wherein said fiber-composite material has a coefficient of kinetic friction of 0.05-0.6 and a porosity of 0.5-10%.
9 more elements
A brake member including a fiber-composite material comprising:
- a plurality of first yarns arranged in a first layer, each first yarn extending in a first longitudinal direction, and comprising a bundle of carbon fibers and an additional carbon component;
- a plurality of second yarns arranged in a second layer, each second layer extending in a second longitudinal direction and comprising a bundle of carbon fibers and an additional carbon component, said second longitudinal direction being substantially perpendicular to said first longitudinal direction;
- and
- a Si—SiC matrix for three-dimensionally integrating the yarns to one another, said matrix being interposed between adjacent yarns within each layer and between yarns of adjacent layers;
- wherein said fiber-composite material is formed by method comprising the steps of:
- forming a plastic coating around each of said first and second yarns;
- stacking the plurality of first and second yarns on one another along said first and second longitudinal directions, respectively, to form an intermediate product;
- heating the intermediate product to burn the plastic coatings and form a burned product;
- and
- infiltrating molten silicon into the pores of the burned product to form said fiber-composite material;
- and
- wherein said fiber-composite material contains 55-75 wt % carbon, 1-10 wt % silicon and 10-50 wt % silicon carbide, and wherein said fiber-composite material has a coefficient of kinetic friction of 0.05-0.6 and a porosity of 0.5-10%.
9 more elements
Dependencies are inferred from the claim text.