Method of forming basalt fibers with improved tensile strength

Details Method of forming basalt fibers with improved tensile strength Method of forming basalt fibers with improved tensile strength

C - Chemistry, Metallurgy

03

B

18/576, 49/9

C03B 37/02 (2006.01) C03C 13/06 (2006.01)

Patent

CA 1097863

TITLE: METHOD OF FORMING BASALT FIBERS WITH IMPROVED TENSILE STRENGTH Abstract of the Disclosure A method of improving the tensile strength of drawn fibers produced from molten basalt rock. Strength is increased by reducing the ferric iron content of the final fibers below that which would be present in the fibers if drawn under normal atmospheric and operational conditions. This is accomplished by either adding a reducing agent to the melt, by drawing the fibers in an inert or reducing atmosphere, or by a combination of both methods.

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