无机盐/微结构陶瓷基复合储能材料的制备工艺和热物理性能  

Fabrication Technologies and Thermal Physical Performances of Inorganic Salt/microstructure Ceramic Composite Energy Storage Materials

作　　者：张仁元[1] 黄金[1] 

机构地区：[1]广东工业大学材料与能源学院,广州510006

出　　处：《人工晶体学报》2008年第4期1020-1024,1036,共6页Journal of Synthetic Crystals

基　　金：国家自然科学基金资助项目(No.59876010)

摘　　要：本文讨论了微结构陶瓷/无机盐复合储能材料的制备工艺及其对热物理性能和组织结构的影响。将NaNO2-NaNO3,Na2SO4,Na-BaCO3等无机盐嵌入多孔陶瓷体内的微米级多孔网络中,从而形成显热和潜热复合储能的新型储能材料。这种材料不仅蓄热量大,可以定形且可与流体直接接触换热。文章介绍了混合烧结和熔盐自浸渗两种制备工艺,详细分析了各制备工艺对微结构陶瓷/无机盐复合储能材料性能的影响。对材料进行了TW、DSC热分析和XRD、SEM显微结构分析,得出不同制备工艺下材料的热物理性能,其最大值可达:相变潜热92.67 J/g,比热1.54 J/g.℃,蓄热密度240 J/g(ΔT=100℃)。Fabrication technologies and thermal physical peformances of microstructure ceramic/inorganic salt composite energy storage materials were discussed in this paper. To fabricate sensible and latent heat storage materials, fractions of molten salt NaNOE-NaNOz ,or Na2SO4, or Na-BaCOz were embedded into the porous microstructure of ceramics. The paper present two fabrication technologies of mix sintered and ,pontaneous infiltrating, the effect of fabrication technologies on performance of ceramic / salt composite energy storage materials was analyzed. The components and microstructure as well as performance of composite energy storage meterials were researched in detail by XRD, SEM , POL, TW, DSC. The thermal physical peformances of microstructure ceramic / inorganic salt storage materials under different fabrication technologies were obtained. The max values are phase change latent heat of 92, 67 J/g, specific heat of 1.54 J/g ·℃ ,heat storage density of 240 J/g （△T=100℃ ）.

关 键 词：无机盐/微结构陶瓷 储能材料 制备方法 热物理性能 

分 类 号：TQ174[化学工程—陶瓷工业]