Heat-insulating lining for a gas turbine

Details Heat-insulating lining for a gas turbine Heat-insulating lining for a gas turbine

1987-11-12

1989-03-07

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Refractory

428113, 428220, 428236, 428239, 428245, 428246, 428289, 428302, 428337, 428701, C04B 3576

Patent

active

048106771

ABSTRACT:
A heat-insulating lining for a gas turbine which consists of a mat formed of ceramic fibers that is provided on its side facing the hot gas with a metal-oxide-containing layer, especially Al.sub.2 O.sub.3. The mat to be provided with the ceramic layer should possess a gross density of 350 to 450 kg/m.sup.3 and the fibers in the mat which are in contact with the metal oxide-containing layer are to be predominantly so oriented that the longitudinal axis of the fibers forms an angle of 30.degree. to 90.degree. with the metal oxide-containing layer. It is preferred if the fibers form an approximately right angle with the metal oxide-containing layer. The thus made coated heat-insulating linings possess a good mechanical stability with respect to the hot gases as well as an adequate thermo-shock resistance.

REFERENCES:
patent: 4075364 (1978-02-01), Panzera
patent: 4238257 (1980-12-01), Remi et al.
patent: 4526824 (1985-07-01), Dworak et al.

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