Low thermal expansion ceramic article

Details Low thermal expansion ceramic article Low thermal expansion ceramic article

1981-08-31

1984-05-29

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Honeycomb-like

428213, 428118, 428119, 501 9, B32B 312

Patent

active

044515162

ABSTRACT:
A low thermal expansion ceramic article having a thermal expansion coefficient of not higher than 2.5.times.10.sup.-6 /.degree.C. within the temperature range of 40.degree.-800.degree. C., and comprising a plural number of ceramic parts bonded into a monolithic structure through glass-ceramics consisting mainly of 10-20% of MgO, 20-40% of Al.sub.2 O.sub.3, 40-60% of SiO.sub.2, 0.1-3% of BaO and 0.01-1% of ZrO.sub.2, is excellent in the heat resistance and in the thermal shock resistance, and can be advantageously used as a rotary regenerator type heat exchanger and a recuperative heat exchanger for gas turbine engine, stirling engine, and industrial apparatuses; and a rotor for turbocharger.

REFERENCES:
patent: 3849097 (1974-11-01), Giffen et al.
patent: 4063955 (1977-12-01), Fritsch et al.
patent: 4142879 (1979-03-01), Fritsch et al.
patent: 4225354 (1980-09-01), Rao

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