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US 4,906,426 AGranted
Process for producing an alumina-silica-chromia ternary fiber
OwnerMasafumi Yamamotoinventor
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Abstract
A process for producing an improved quality alumina-silica-chromia fiber from a mixture of an alumina powder, a silica powder and a powder of a solid solution of chromia in alumina, providing a flowing melt, and forming fibers.
Claims4
A process for producing alumina-silica-chromia ceramic fibers comprising
- providing a solid solution of from about 10 to 60% by weight chromia and 90 to 40% by weight alumina,
- blending the said solid solution with additional alumina and silica in a predetermined ratio to provide a mixture of alumina, silica and chromia with all of the chromia in said mixture being provided from said solid solution,
- providing said mixture as a flowing melt, and
- forming fibers from said flowing melt, thereby providing fibers having a substantially uniform alumina, silica and chromia composition.
1 more element
Dependencies are inferred from the claim text.