The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 2011
Filed:
Oct. 08, 2003
Tsutomu Fukuda, Kakogawa, JP;
Masahiro Fukuda, Uji, JP;
Masaaki Fukuda, Kakogawa, JP;
Toshinobu Yoko, Uji, JP;
Masahide Takahashi, Uji, JP;
Tsutomu Fukuda, Kakogawa, JP;
Masahiro Fukuda, Uji, JP;
Masaaki Fukuda, Kakogawa, JP;
Toshinobu Yoko, Uji, JP;
Masahide Takahashi, Uji, JP;
Ohcera Co., Ltd., Osaka, JP;
Abstract
The present invention provides a process for preparing a sintered body comprising as a basic component aluminum magnesium titanate represented by the composition formula: MgAlTiOwherein the value of x is 0.1≦x<1. The process comprises a step of sintering a formed product from a raw material mixture comprising 100 parts by weight, calculated on an oxide basis, of a mixture comprising a Mg-containing compound, an Al-containing compound and a Ti-containing compound at the same metal component ratio as the metal component ratio of Mg, Al and Ti in the above composition formula, and 1–10 parts by weight of an alkali feldspar represented by the composition formula: (NaK)AlSiOwherein the value of y is 0≦y≦1. According to the process of the present invention, a sintered body of aluminum magnesium titanate having stability in continuous use at high temperatures and excellent mechanical strength, while maintaining inherently low thermal expansibility of a sintered body of aluminum magnesium titanate, can be obtained.