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通过烧结铜纤维和微沟槽铜板制造得到了一种具有高孔隙率的新型沟槽烧结纤维复合毛细芯多孔材料。通过对沟槽烧结纤维复合毛细芯多孔材料进行拉伸性能测试,研究了纤维参数和烧结参数对拉伸性能的影响。通过大量的拉伸实验数据得到了沟槽烧结纤维复合毛细芯多孔材料的典型的应力应变图。对于在相同的烧结参数下制造得到的相同质量的沟槽烧结纤维复合毛细芯多孔材料,其抗拉强度随着孔隙率和直径的增加而减少。测试结果表明:当烧结温度低于1083℃时,抗拉强度随着烧结温度和烧结时间的增加而增加。
A new type of grooved sintered fiber composite capillary core porous material with high porosity was obtained by sintering copper fiber and micro-grooved copper plate. Tensile properties of the grooved sintered fiber composite capillary core porous material were tested. The effects of fiber parameters and sintering parameters on the tensile properties were studied. Through a large number of tensile test data, a typical stress-strain diagram of grooved sintered fiber composite capillary wick is obtained. Tensile strength decreases with increasing porosity and diameter for the same quality of fluted sintered fiber composite capillary-cored porous material made under the same sintering parameters. The test results show that when the sintering temperature is lower than 1083 ℃, the tensile strength increases with the increase of sintering temperature and sintering time.