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- W2394401148 abstract "A heat-absorbing material of SiC based ceramic was prepared by a pressureless sintering method.Andalusite,SiC,Kaolin clay and quartz were used as the raw materials.The bending strength,thermal expansion coefficient,thermal shock resistance,thermal conductivity,refractoriness,growth rate of oxidation mass,phase composition and microstructure were analyzed.The results indicate that SiC based heat absorbing ceramic with the symmetrical microstructure has a higher refractoriness,a greater thermal conductivity,a lower thermal expansion coefficient,a lower growth rate of oxidation mass and a superior thermal shock resistance as well.The sample with optimized formulation with the bending strength of 32.52 MPa and the thermal expansion coefficient of 6.32 × 10-6 ℃-1 was obtained at the sintering temperature of 1 460 ℃.The phase composition is α-SiC,mullite and cristobalite.It was observed that there are many connected pores with the sizes of 10-20 μm in the sample.When the absorber material is replaced by SiC based ceramic,the absorber exhibits a better stability,indicating its potential applications in intermediate and high temperature absorber in tower type solar thermal power generation." @default.
- W2394401148 created "2016-06-24" @default.
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- W2394401148 date "2012-01-01" @default.
- W2394401148 modified "2023-09-24" @default.
- W2394401148 title "Preparation and Thermal Properties of SiC Based Solar Heat Absorbing Ceramic" @default.
- W2394401148 hasPublicationYear "2012" @default.
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