Method for producing aluminum titanate sintered object
USRE42582E1 · kind E1 · reissue
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2001 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Nov 6, 2021 |
Classification
- Technology area (CPC —)General
Abstract
The present invention provides a process for preparing an aluminum-titanate-based sintered body comprising the step of firing, at 1250 to 1700° C., a formed product prepared from a raw material mixture containing 100 parts by weight of a mixture of TiO2 and Al2O3 in a weight ratio of TiO2:Al2O3=40:60 to 60:40, and 1 to 15 parts by weight of an alkali feldspar represented by the formula:(NaxK1-x)AlSi3O8 wherein 0≦x≦1.According to the process of the present invention, it is possible to obtain an aluminum-titanate-based sintered body in which inherent properties of an aluminum titanate, i.e., a low coefficient of thermal expansion and high corrosion resistance are maintained, the mechanical strength thereof is improved, and which can be stably used even under high temperature conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.