Comparative study of the strength properties of slip-cast and of extruded silicon-infiltrated SiC

Measurements of crack growth and fracture stress were performed on specimens made of slip-cast and of extruded silicon-infiltrated SiC at room temperature and at 1200°C using the double-torsion test and four-point bending respectively. The extruded material showed slightly superior crack growth and...

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Bibliographic Details
Published in:Materials science and engineering 1985-01, Vol.71 (1-2), p.203-208
Main Authors: Richter, H, Kleer, G, Heider, W, Röttenbacher, R
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Chemical industry and chemicals
Exact sciences and technology
Miscellaneous
Refractory products
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Summary:Measurements of crack growth and fracture stress were performed on specimens made of slip-cast and of extruded silicon-infiltrated SiC at room temperature and at 1200°C using the double-torsion test and four-point bending respectively. The extruded material showed slightly superior crack growth and fracture stress properties. At 1200°C, both materials revealed evidence of creep in the crack growth experiment. Lifetimes measured under static and cyclic load were compared with values calculated on the basis of the measured crack growth and fracture stress data. The agreement between the experimental and the calculated lifetimes was satisfactory.
ISSN:0025-5416
DOI:10.1016/0025-5416(85)90231-9