초록 ▼

This invention relates to metal and ceramic matrix composite brake rotors comprising an interconnected matrix embedding at least one filler material. In the case of metal matrix composite materials, the at least one filler material comprises at least about 26% by volume of the brake rotor for most a

This invention relates to metal and ceramic matrix composite brake rotors comprising an interconnected matrix embedding at least one filler material. In the case of metal matrix composite materials, the at least one filler material comprises at least about 26% by volume of the brake rotor for most applications, and at least about 20% by volume for applications involving passenger cars and trucks. In a preferred embodiment of the present invention, the metal matrix composite brake rotor comprises an interconnected metal matrix containing at least about 28% by volume of a particulate filler material and more preferably at least about 30% by volume. Moreover, the composite rotors of the present invention exhibit a maximum operating temperature of at least about 900°F. and preferably at least about 950°F. and even more preferably at least about 975°F. and higher.

대표청구항 ▼

A brake rotor consisting essentially of a metal matrix composite material having a maximum operating temperature of at least about 482°C. (900°F.), wherein said metal matrix composite material comprises a preform infiltrated with a matrix metal comprising aluminum, said preform comprising at least o

A brake rotor consisting essentially of a metal matrix composite material having a maximum operating temperature of at least about 482°C. (900°F.), wherein said metal matrix composite material comprises a preform infiltrated with a matrix metal comprising aluminum, said preform comprising at least one filler material bonded with a cured preceramic polymer, wherein said at least one filler material makes up at least about 20% by volume of said metal matrix composite material.