Patent · US Expired

Sintered form body

US4895815A · kind A · utility

7Cited by

3References

10Claims

0Family size

Assignee

Feldmuhle Aktiengesellschaft · DE

Inventors

Hans Olapinski · Esslingen am Neckar, DE
Wolfgang Burger · Burgrain, DE
Ulf Dworak · Baltmannsweiler, DE

Key dates

Filing date	Dec 3, 1987
Grant date	Jan 23, 1990
Priority date	—
Expiry date	Dec 3, 2007

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B35/478
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Disclosed is a starting mixture for the preparation of a sintered body on a basis of aluminum titanate consists of more than 46 wt.-% TiO.sub.2, up to 49.5 wt.-% Al.sub.2 O.sub.3, 3 to 5 wt.-% quartz, and less than 0.2 wt.-% impurities, Al.sub.2 O.sub.3 and TiO.sub.2 being present in the weight ratio of 1:0.95 to 1:1.05. The sintered body according to the invention is composed of: PA1 15 to 35 wt.-% TiO.sub.2 ; PA1 60 to 85 wt.-% Al.sub.2 TiO.sub.5 (aluminum titanate); PA1 up to 5 wt.-% Al.sub.2 O.sub.3 ; PA1 up to 17 wt.-% Mullite; and PA1 max. 0.2 wt.-% impurities, all parts by weight together totaling 100 wt.-%. Also disclosed are processes for making the sintered body.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.