NASA NTRS · 19800013838
Advanced ceramic material for high temperature turbine tip seals
Abstract
Forty-one material systems were evaluated for potential use in turbine blade tip seal applications at 1370 C. Both ceramic blade tip inserts and abradable ceramic tip shoes were tested. Hot gas erosion, impact resistance, thermal stability, and dynamic rub performance were the criteria used in rating the various materials. Silicon carbide and silicon nitride were used, both as blade tips and abradables. The blade tip inserts were fabricated by hot pressing while low density and honeycomb abradables were sintered or reaction bonded.
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Vogan, J. W., Solomon, N. G., Stetson, A. R.. 1980-01-01. Advanced ceramic material for high temperature turbine tip seals. https://ntrs.nasa.gov/citations/19800013838
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