Composite crucible and method of manufacturing the same
US9266763B2 · kind B2 · utility
0Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2011 |
| Grant date | Feb 23, 2016 |
| Priority date | — |
| Expiry date | Nov 23, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T117/10
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The purpose of the present invention is to provide a crucible which has high viscosity at high temperature, can be used for a long time, and can be manufactured at low cost, and a method of manufacturing the crucible. The present invention provides a composite crucible including a vitreous silica crucible body having a sidewall portion and a bottom portion, and a reinforcement layer provided on an outer surface side of an upper end portion of the vitreous silica crucible body, wherein the reinforcement layer is made of mullite material whose main component is alumina and silica.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.