【摘要】 采用粉末烧结工艺将相变材料Na2CO3和基体材料MgO进行复合,制成一种新型高温复合相变蓄热材料.通过XRD和TG?DTA分析,结果表明:由Na2CO3/MgO构成的复合相变蓄热材料具有良好的化学相容性,在845℃时出现吸热峰.通过对其蓄热密度的计算可知:制备成的蓄热材料具有蓄热密度高的特点,能够实现高温蓄热.更多还原

【Abstract】 A new type of high temperature phase change material was obtained through the powder sintering method,compounding MgO as matrix and Na₂CO₃ as phase change material.XRD analysis shows that the material has good chemical compatibility and TG-DTA analysis shows that an endothermic peak arises at 845℃.Calculations indicate that the composite PCM is characterized by high thermal energy storage density and heat storage at high temperatures.更多还原