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US 11,866,368 B2Granted
Uncalcined geopolymer-based refractory material and method for its preparation
AssigneeShenzhen University
InventorsFeng Xing, Yuan Fang, Aoxuan Wang
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Abstract
An uncalcined geopolymer-based refractory material is provided, comprising a matrix of a geopolymer obtainable by polymerization of a mixture consisting of mineral powder, fly ash, and metakaolin; and SiC whiskers embedded in the geopolymer matrix. The material has excellent mechanical properties and high resistance to high temperatures and exhibits a ductile fracture mechanism instead of a brittle fracture mechanism.
Claims20
An uncalcined geopolymer-based refractory material, comprising:
- a matrix of a geopolymer obtained by polymerization of a mixture consisting of mineral powder, fly ash, and metakaolin;
- and
- silicon carbide whiskers embedded in the geopolymer matrix, the silicon carbide whiskers being pure silicon carbide whiskers or boron nitride coated silicon carbide whiskers,
- wherein a mass ratio of the mineral powder to the fly ash to the metakaolin is in a range of (35-45):(25-35):(25-35).
1 more element
Dependencies are inferred from the claim text.