Zirconium ceramic material, optical fiber connector member using the same, and method of producing the same
US6358874B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1998 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | Nov 30, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/486
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An optical connector member of the present invention is formed of a zirconia based ceramics which contain ZrO2 as a main component, 2-4 mol % of Y2O3, 0.05-1.0 wt % of A12O3, and 0.01 wt % or less each of siO2 and TiO2, then allowing the connector member to assure the durability even using in the high temperature and humidity circumstances. Also, An optical connector member is formed of a ceramic material having 0.1 wt % or less of a rate of change in weight while the material is held at a temperature of 85° C. and relative humidity of 85% for 2000 hours. For the ceramics, zirconia based ceramics are used to be partially stabilized with Y2O3 and with another stabilizer other than Y2O3. Further, the invention includes a ferrule having a through hole for holding an optical fiber therein, wherein the ferrule is provided, on its periphery, with a marker which indicates a direction of decentering the fiber on the top surface of the ferrule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.