Inorganic fiber and process for the production thereof
US5240888A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1992 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Apr 20, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/96
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An inorganic fiber having excellent properties as a reinforcement for metals, plastics and rubbers, which has a surface layer portion and an inner layer portion, the surface layer portion having a composition continuously changing from the inner layer portion to the fiber surface, and which is composed of a basic constituent unit of; PA0 (1) an amorphous substance composed of silicon, carbon, either titanium or zirconium, and oxygen, PA0 (2) an aggregate composed of; PA0 crystalline fine particles formed of at least one selected from the group consisting of .beta.-SiC, MC, a solid solution of .beta.-SiC and MC, and MC.sub.1-x, and having a particle diameter of not more than 50 nm, PA0 amorphous SiO.sub.2, and PA0 MO.sub.2, or PA0 (3) a mixture of the above amorphous substance (1) with the above aggregate (2), PA0 wherein M is titanium or zirconium and x is greater than 0 and less than 1, PA0 the inorganic fiber having an inner layer portion comprising 40 to 60% by weight of silicon, 20 to 40% by weight of carbon, 0.5 to 10% by weight of titanium or zirconium and 10 to 30% by weight of oxygen, and a surface layer portion comprising 0 to 40% by weight of silicon, 50 to 100% by weight…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.