High temperature low thermal expansion ceramic

Compositions: ceramic – Ceramic compositions – Refractory

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Details

501 80, 501134, 501152, C04B 3510, C04B 3518, C04B 3546, C04B 3550

Patent

active

048552658

ABSTRACT:
This invention relates to the high temperature stabilization of aluminum titanate and aluminum titanate-mullite compositions by the addition of iron oxide. It has been found that iron oxide concentrations greater than 5 weight percent and as high as approximately 25 weight percent have a stabilization effect at high temperatures on aluminum titanates. The resultant ceramic body is further enhanced by the addition of from 0.1 to 5 weight percent rare earth oxide.

REFERENCES:
patent: 2776896 (1957-01-01), Harman et al.
patent: 4327188 (1982-04-01), Endo et al.
patent: 4483944 (1984-11-01), Day et al.
patent: 4767731 (1988-08-01), Asami et al.
Refractory Materials for Use in High-Temperature Areas of Aircraft, ADC Technical Report 53-9, Norman R. Thielke, Jan. 1953, p. 28.

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