【摘 要】
：
The Cu-based electrical contact composites containing reinforcement (Cr2Nb particles) and solid lubricants (NbSe2 particles) were fabricated by a powder metallurgy method, and their mechanical and ele
【出 处】
：
第二届中国国际复合材料科技大会 (CCCM-2)
论文部分内容阅读
The Cu-based electrical contact composites containing reinforcement (Cr2Nb particles) and solid lubricants (NbSe2 particles) were fabricated by a powder metallurgy method, and their mechanical and electrical properties were investigated.The wear tests of Cu-based composites were performed on a ball on disc under dry sliding conditions in a laboratory ambience and the worn surface of the Cu-based composites was observed by using scanning electron microscopy.
其他文献
We report the symmetric supercapacitors using the compacted vertically aligned CNTs coated with different thickness PEDOT as electrodes, as well as using a mixture of BMI-BF4/PC as electrolyte, to ach
"万能"低压电接触材料Ag-CdO因Cd的毒性而被逐渐淘汰，寻找一种替代Ag-CdO的理想材料是该领域不懈的追求。本文将兼备金属与陶瓷特性的MAX相材料Ti3AlC2作为弥散相加入Ag基体中，通过简单经济的无压烧结工艺制备Ag-Ti3AlC2复合电接触材料。采用不同的混粉工艺制备出Ag-xwt％Ti3AlC2混合粉末和坯体。经过600MPa冷压成型的Ag-xwt％Ti3AiC2坯体通过无压烧结和等
为了提升隔热涂料的隔热性能和环保效益，并降低成本，选用导热率低和耐污性良好的贝壳粉作为涂料填料，以水性氟碳乳液为成膜树脂，钛白粉为颜料，空心微珠为功能填料制备了一种高性能的隔热涂料，对涂料进行了太阳反射比，隔热性能，耐洗刷性能和漆膜附着力的测试，与商业碳酸钙涂料进行了性能对比，并分析了贝壳粉粒径大小对涂料性能的影响。
将有较高比表面积的片层状MoO3附着在具有三维结构的还原氧化石墨烯(rGO)水凝胶上，有望得到具有较好电化学性能的rGO/MoO3水凝胶。本研究将氧化石墨烯(GO)、片层状MoS2与表面活性剂以一定比例混合，制备出GO/MoS2水凝胶，冷冻干燥后，经热处理得到rGO/MoO3水凝胶材料。采用X射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线光电子能谱仪(XPS)、交流
The "universal" low-voltage electrical contact material Ag-CdO is gradually abandoned because of the toxicity of Cd.It has been a constant pursuit to find an ideal substitute for the Ag-CdO.In this st
In this research, high performance thermal insulation coating (TIC) was prepared by using shell powders, waterborne fluorocarbon, titanium dioxide rutile and hollow glass microspheres, where shell pow
MAX相表面A元素晶须的自发生长引起了人们对其稳定性的疑虑,从而妨碍了MAX相材料的实用化进程。本文研究了一系列不同Ga含量、不同密度的Cr2GaC烧结体样品表面Ga晶须自发生长现象。实验结果表面晶须生长的元素来源于MAX相材料中的自由Ga元素,而非MAX相晶格中的Ga元素,这一结论去除了对MAX相晶格稳定性的疑虑。而且,Ga晶须的形貌特征及其生长规律符合MAX相晶粒断裂面催化形核模型,该模型也可
Spontaneous growth of Sn whiskers has been a problem for more than 60 years.However, the fundamental mechanism behind this phenomenon still remains unclear.The spontaneous growth of whiskers from MAX
高分子基复合材料在航空航天领域的应用越来越广泛，其中高分子复合吸波材料作为电磁功能材料成为目前研究的热点。本研究分别以炭黑(CB)、羰基铁(CIP)、铁硅铝(FSA)、铁氧体(FP)、纳米羰基铁(nmCIP)为吸收剂制备聚氨酯基复合吸波涂层，并分别以铝和PVC作为反射基板进行了电磁波吸收性能研究。铝基板复合涂层研究结果表明，随着吸收剂含量的逐渐增大，涂层的反射损耗(RL)峰位逐渐移向低频区域。
Spontaneous growth of A-element whiskers from MAX phase materials may bar their practical application, since it casts doubts about their stability.In this study, the growth of Ga whiskers from sintere