Reinforcing fibers and composite materials reinforced with said fibers
US4778722A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 1987 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | May 11, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2964
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A reinforcing inorganic fiber composed of an internal layer and a surface layer, wherein PA0 said internal layer is composed of an inorganic material containing silicon, either titanium or zirconium, carbon and oxygen which is PA1 (i) an amorphous material consisting substantially of Si, M, C and O, or PA1 (ii) an aggregate consisting substantially of ultrafine crystalline particles with a particle diameter of not more than 500 .ANG. of .beta.-SiC, MC, a solid solution of .beta.-SiC and MC and MC.sub.1-x, wherein M represents titanium or zirconium, and x is a number represented by 0<x<1, or PA1 (iii) a mixture of the amorphous material (i) and the aggregate (ii), and PA0 said surface layer is composed of an inorganic material consisting of silicon, either titanium or zirconium, and oxygen and optionally not more than 5% by weight of carbon which is PA1 (iv) an amorphous material consisting substantially of Si, M and O, PA1 (v) an aggregate composed of crystalline SiO.sub.2 and MO.sub.2, or PA1 (vi) a mixture of the amorphous material (iv) and the aggregate (v).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.