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The Occurrence of Defects in Silicon Carbides as a Result of Processing Mode and Applied Stress

Published online by Cambridge University Press:  21 February 2011

C. H. Carter Jr. ,
J. Bentley  and
Robert F. Davis
C. H. Carter Jr.
Affiliation:
North Carolina State University, Raleigh, NC
J. Bentley
Affiliation:
North Carolina State University, Raleigh, NC Oak Ridge National Laboratory, Oak Ridge, TN
Robert F. Davis
Affiliation:
North Carolina State University, Raleigh, NC
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Extract

Silicon carbide (SiC) possesses extreme hardness, very good electrical, thermal and mechanical properties as well as excellent resistance to corrosion and thermal shock. As such, it is one of the primary candidate materials for use in systems for the production and conversion of energy at elevated temperatures. It is currently employed in or being considered for use in heat exchangers or waste heat recouperators in various prototype fossile fuel systems. Specific examples of its potential use include (1) indirectly fired turbine engines wherein the turbine section is separated and protected from the combustor by a SiC heat exchanger; (2) coal fired systems which heat air in a fluidized bed containing a SiC heat exchanger; (3) coal gasifiers wherein the outlet channels will be of SiC because of the particle erosion, high temperatures (1673K) and pressures on these systems; (4) critical parts for gas turbines, the Sterling engine and adiabatic diesel engines; (5) high temperature bearings and (6) first wall materials for fusion reactors.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 24: Symposium B – Defect Properties and Processing of High-Technology Nonmetallic Materials , 1983 , 351
Copyright
Copyright © Materials Research Society 1984

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References

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