Structural ceramics incorporating boron carbide whiskers for the

Details Structural ceramics incorporating boron carbide whiskers for the Structural ceramics incorporating boron carbide whiskers for the

1991-08-27

1992-11-10

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Refractory

501 91, 501 97, 501127, C04B 3576

Patent

active

051622700

ABSTRACT:
Ceramic composites, and in particular structural ceramic composites, have enhanced strength, toughness and abrasion resistance due to the presence of up to about 40 volume percent of relatively large boron carbide whiskers. Although whiskers of various sizes were studied, those of particular interest are whiskers having an average diameter greater than about 3 micrometers, and particularly about 5 to about 8 micrometers, with an average aspect ratio of about 50. Due to the larger size, which had been predicted to be detrimental, there is less respiratory health risk when using these whiskers in the manufacturing of thse improved ceramic composites. Since boron carbide whiskers have many properties superior to silicon carbide whiskers, the most common strengthening agent, the findings should lead to several improved ceramic composites.

REFERENCES:
patent: 3011877 (1961-12-01), Schweickert et al.
patent: 3174827 (1965-03-01), Wakelyn et al.
patent: 3230053 (1966-01-01), Wakelyn et al.
patent: 3520740 (1970-07-01), Addamiano
patent: 4174331 (1979-11-01), Myles
patent: 4370390 (1983-01-01), Burk
patent: 4387080 (1983-06-01), Hatta et al.
patent: 4461842 (1984-07-01), Jamet
patent: 4543345 (1985-09-01), Wei
patent: 4558016 (1985-12-01), Bronson et al.
patent: 4585500 (1986-04-01), Minjolle et al.
patent: 4789277 (1988-12-01), Rhodes et al.
patent: 5047186 (1991-09-01), Huckabee et al.

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