纳米铜基温敏复合材料的制备及其性能研究

Preparation and characterization of cu-based function nanocomposite material

采用高能球磨法制备了纳米铜基温敏复合材料.通过PHILIPSEM430型高分辨透射电镜(TEM)观察复合材料形貌,比较及确定了复合材料的粒径,进而采用热压成型工艺,将复合材料装入自制铜管(直径5mm,长度20mm,一端封闭),用温控光学测微装置测试其热敏性,着重探讨了球磨时间对复合材料微观形貌特征和热敏性的影响.研究结果表明,不同的球磨时间使复合材料粒径和形状发生变化,球磨时间对复合材料的热敏性影响显著,复合材料的热敏性随球磨时间延长而逐步提高.

The cu-based function nanocomposite material is made by high energy ball mill. The microstructures of cu-based function nanocomposite material is studied by PHILIPS EM430 transmission electron microscopy （TEM）, Compare with and determine the material particle size, Then use the thermo-compression craft to take shape, load the material to the self-made copper pipe （diameter 5 mm, length 20 mm, an end seal）, With warm controlled optics installment of measuring the micro test its thermo-sensitivity, the effects of milling time on the microstructures and the thermo-sensitivity of cu-based function nanocomposite material are researched. The results show that the different milling time cause the change of the material particle size and shape, it influences remarkably to the thermo-sensitivity of the material, the thermo-sensitivity is lengthen along with the mechanical milling.