Ductile behavior of fine-grained, carbon-bonded materials at elevated temperatures
Ductile behavior of fine-grained, carbon-bonded materials at elevated temperatures
复制标题
细晶碳粘合材料在高温下的延展行为
DOI:
10.1016/j.carbon.2017.06.041
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发表时间:
2017
期刊:
影响因子:
10.9
通讯作者:
Biermann
中科院分区:
文献类型:
--
作者:
Solarek;Himcinschi;Aneziris;Biermann
Carbon-bonded materials are widely used in refractory applications because of their unique chemical, physical, and mechanical properties at high temperatures. The mechanisms of their high-temperature deformation are, however, unclear. The present study reveals new results from mechanical testing of both fine-grained, carbon-bonded alumina and graphite (ISEM 8) observed at temperatures of up to 1500 °C in an inert atmosphere. The results were achieved by means of microstructural investigations by scanning electron microscopy. For Al2O3-C, a pronounced maximum strength vs. testing temperature occurred at 1300–1400 °C, with a change from brittle to ductile behavior. In contrast, graphite showed an increase in strength until 1500 °C and no evidence of ductile deformation. A model based on the differences in the coefficients of thermal expansion of the components is presented to explain this phenomenon. In addition, Raman spectroscopy revealed the formation of graphitic structures due to testing at 1500 °C.
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DOI:
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发表时间:
1958
期刊:
影响因子:
--
作者:
J. Hove
通讯作者:
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DOI:
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发表时间:
2007
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1959
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影响因子:
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作者:
J. Solarek;C. Bachmann;Yvonne Klemm;C. Aneziris;H. Biermann
通讯作者:
J. Solarek;C. Bachmann;Yvonne Klemm;C. Aneziris;H. Biermann
DOI:
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发表时间:
1985
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影响因子:
--
作者:
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通讯作者:
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