Aluminous Keatite—An Improved Rotary Ceramic Regenerator Core Material
- 1 January 1978
- journal article
- Published by ASME International in Journal of Engineering for Power
- Vol. 100 (1) , 36-39
- https://doi.org/10.1115/1.3446321
Abstract
Rotary lithium aluminum silicate (LAS) ceramic regenerator cores for gas turbines have had limited durability in applications using sulphur bearing hydrocarbon fuels such as diesel oil. The presence of sulphuric acid from the combustion process caused a lithium/hydrogen ion exchange and resulted in core failure. This paper describes a unique low thermal expansion aluminous keatite material (Corning Code 9460) which was developed to overcome the foregoing problem. Cores made from this new material have now operated over 6000 hr in Ford 707 gas turbines.Keywords
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