Anomalies in mid-high-temperature linear thermal expansion coefficient of the closed-cell aluminum foam
作者: Hong YeMingyang MaJilin Yu
作者单位: 1Department of Thermal Science and Energy Engineering, University of Science and Technology of China
2Department of Modern Mechanics, University of Science and Technology of China
刊名: Chinese Science Bulletin, 2014, Vol.59 (28), pp.3669-3675
来源数据库: Springer Journal
DOI: 10.1007/s11434-014-0508-y
关键词: Aluminum foamThermal expansionResidual stressPhase transitionHydrideHysteresis
英文摘要: Abstract(#br)Low-density closed-cell aluminum foam is promising to be used as load-bearing and thermal insulation components. It is necessary to systematically study its thermal expansion performance. In this work, linear thermal expansion coefficient (LTEC) of the closed-cell aluminum foam of different density was measured in the temperature range of 100–500 °C. X-ray fluorescence was used to analyze elemental composition of the cell wall material. Phase transition characteristics were analyzed with X-ray diffraction and differential scanning calorimetry. LTEC of the closed-cell aluminum foam was found to be dominated by its cell wall property and independent of its density. Particularly, two anomalies were found and experimentally analyzed. Due to the release of the residual tensile...
全文获取路径: Springer  (合作)
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影响因子:1.319 (2012)

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关键词翻译
关键词翻译
  • thermal 热的
  • aluminum 
  • coefficient 系数
  • temperature 温度
  • closed 闭路的
  • expansion 膨胀
  • linear 线形的