Compositions: ceramic – Ceramic compositions – Titanate – zirconate – stannate – niobate – or tantalate or...
Reexamination Certificate
2007-01-23
2007-01-23
Group, Karl (Department: 1755)
Compositions: ceramic
Ceramic compositions
Titanate, zirconate, stannate, niobate, or tantalate or...
C501S118000, C501S134000, C264S674000, C264S681000
Reexamination Certificate
active
10530476
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: MgxAl2(1−x)Ti(1+x)O5wherein 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: (NayK1−y)AlSi3O8wherein 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.
REFERENCES:
patent: 4307198 (1981-12-01), Oda et al.
patent: 5008222 (1991-04-01), Kameda
patent: 6403019 (2002-06-01), Fukuda et al.
patent: 6620751 (2003-09-01), Ogunwumi
patent: 2003/0015829 (2003-01-01), Fukuda et al.
patent: 2004/0092381 (2004-05-01), Beall et al.
patent: 2005/0181929 (2005-08-01), Fukuda et al.
patent: 1338581 (2003-08-01), None
patent: 4-280863 (1992-10-01), None
patent: 2002-145659 (2002-05-01), None
patent: WO 02/38519 (2002-05-01), None
Giordano et al; “Microstructure and thermal expansion of Al2TiO5-MgTi2O5solid solutions obtained by reaction sintering,” J. European Ceramic Soc. 22 (2002) pp. 1811-1822.
Buscaglia et al; “Decomposition of Al2TiO5and Al2(1−x)MgxTi(1+x)O5Ceramics;” J.Am.Ceram.Soc. 81 (10) (1998) pp. 2645-2653.
International Search Report dated Jan. 27, 2004.
“Property and Application of Aluminum Titanate Ceramics,” Foshan Ceramics (2003); vol. 10; No. 3; Serial No. 41; pp. 4-6; with English Abstract (see Office Action).
“Aluminum Titanate Ceramics and the Application,” Shandong Ceramics (2000) vol. 23, No. 2; with English Abstract (see Office Action).
“New Development in Research of Aluminum Titanate Ceramics,” Bulletin of the Chinese Ceramic Society (1999); No. 4; pp. 53-59 with English Abstract (see Office Action).
“The Effect of Additives to the Property of Aluminum Titanate,” Refractories (2001), vol. 35, No. 2, pp. 87-88, with English Abstract (see Office Action).
Research of the Effect of Different Additives to Coefficient of thermal Expansion of Aluminum Titanate, Journal of Inorganic Material (2000), vol. 15, No. 3; pp. 438-440, with English Abstract (see Office Action).
Chinese Office Action dated Jun. 30, 2006 with English Translation.
Fukuda Masaaki
Fukuda Masahiro
Fukuda Tsutomu
Takahashi Masahide
Yoko Toshinobu
Armstrong Kratz Quintos Hanson & Brooks, LLP
Group Karl
Ohcera Co. Ltd.
LandOfFree
Method for producing aluminum magnesium titanate sintered... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for producing aluminum magnesium titanate sintered..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing aluminum magnesium titanate sintered... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3731373