%0 Journal Article
%T Thermal capacity of nanocrystalline copper at low temperatures<br>纳米结构Cu固体材料的低温热容性能研究
%A Zhang Hong-Liang
%A Lei Hai-Le
%A Tang Yong-Jian
%A Luo Jiang-Shan
%A Li Kai
%A Deng Xiao-Chen
%A <br>张洪亮
%A 雷海乐
%A 唐永建
%A 罗江山
%A 李恺
%A 邓晓臣
%J 物理学报
%D 2010
%I 
%X Copper nanoparticles with average diameter of about 45 nm were compressed in a high-strength mold under different pressures at 523 K to produce nanocrystalline copper. The X-ray diffraction (XRD),scanning electron microscopy (SEM),and physics-property-measurement system (PPMS) were used to study the thermal capacity of nanocrystalline Cu as a function of temperature and the mass density at low temperatures. The experimental results indicate that the thermal capacity at low temperatures increases with decrea...
%K nanocrystalline copper
%K flow-levitation method
%K defects
%K thermal capacity<br>纳米结构Cu固体材料，
%K 自悬浮定向流技术，
%K 缺陷，
%K 热容
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=99C4C5F4F9E2850B6CAD774DA37EBF28&yid=140ECF96957D60B2&vid=6AC2A205FBB0EF23&iid=CA4FD0336C81A37A&sid=DCE57F652E4ADAFC&eid=D93AD940782892D0&journal_id=1000-3290&journal_name=物理学报&referenced_num=1&reference_num=0