Preparation of ceramics

Details Preparation of ceramics Preparation of ceramics

1976-08-23

1978-06-27

McCarthy, Helen M.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 44, 106 55, 106 69, 106 735, 264 65, C04B 3556, C04B 3558

Patent

active

040972941

ABSTRACT:
A method for preparing ceramic material from a polymer which comprises selecting a polymer from the class consisting of poly(diorganosilanes), poly(haloorganosilanes), poly(carbosilanes), polysilazanes, polycarbocarboranes, and polyborazines; heating said polymer to a temperature from 700.degree. to 2000.degree. C at a rate of at most 100.degree. C/hr. in an inert atmosphere for at least one hour; and cooling to room temperature at a cooling rate which avoids thermal stresses.

REFERENCES:
patent: 3457222 (1969-07-01), Papetti
patent: 3457223 (1969-07-01), Papetti
patent: 3463801 (1969-08-01), Papetti et al.
patent: 3821070 (1974-06-01), Mansmann et al.
patent: 3853567 (1974-12-01), Verbeek
patent: 3892583 (1975-07-01), Winter et al.
patent: 4010233 (1977-03-01), Winter et al.
Yajima, S. et al. --"Continuous SiC Fiber of High Tensile Strength" Chemiy Letters pp. 931-934, (1975), Pub by Chem. Soc. of Japan.
Yajima, S. et al. --"Structural Analysis in Continuous Silicon Carbide Fiber of High Tensile Strength," Chem. Letters, pp. 1209-1212, (1975).
Yajima, S. et al. --"Synthesis of Continuous SiC Fibers With High Tensile Strength"--J. Am. Cer. Soc. 59, (7-8), Rec'D by PTO Aug. 6, 76, pp. 324-327.

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