Feldmuehle Aktiengesellschaft

Wolfgang Burger

Hans Olapinski

Ulf Dworak

Gert Wloka

Helmut Sommer

The present invention is in a sintered molding of partially stabilized zirconium oxide having a microstructure of 40 to 70 volume percent cubic phase, 30 to 70 volume percent tetragonal phase, and up to 10 volume percent monoclinic phase wherein the tetragonal phase is present in the form of precipitates less than 200 nm. A mixture of magnesia and yttria is used to stabilize the zirconia. Optionally, the sintered molding may further contain up to 20 wt. % spinel.

Sintered molding, a method for producing it and its use

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:

Sintered form body

A ski having good glidability, and low wear in its glide zones, and in which the tread areas in the glide zones are so configured that ordinary flexural stress will not ensue in cracking or other damage to the thread. The ski has a glide surface comprising one or more elements which are in the form of at least one of solid ceramic sintered compacts and coated metal base plates.

Growing community of inventors

Wernau, Germany

Wolfgang Burger