VLS Fiber growth process

Details VLS Fiber growth process VLS Fiber growth process

1989-02-16

1990-03-27

Hearn, Brian E.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156609, 156612, 156614, 156DIG112, 501 12, 501 35, 501 95, 23300, 423346, 4273977, 427190, 427193, 264DIG19, C01B 3136, C01B 2518

Patent

active

049117815

ABSTRACT:
A method for preparing substrates for VLS fiber producing reactions and a method for preparing SiC fibers by the VLS process. The first method includes the steps of forming an alcohol sol containing a fiber growth promoter material precursor, applying the sol to at least one surface of the substrate and drying the sol. More particularly, the steps can include forming a sol of colloidal hydrous metal oxide particles in a liquid, the metal oxide being a fiber growth promoter material precursor and the liquid being capable of dissolving a salt of the metal and of wetting the substrate surface as a sol, applying the sol to at least one surface of the substrate and drying the sol. The method for the production of SiC fibers includes the steps of applying to at least one surface of a non-metallic, high temperature resistant substrate a sol coating containing a SiC fiber growth promoter material precursor, drying the sol coating and contacting the substrate with silicon and carbon containing gases at a temperature of about 1300.degree. C. to about 1500.degree. C.

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