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影响0-3型复合材料压电性能的因素分析 总被引:2,自引:0,他引:2
通过引入复合材料的电学等效和机械等效,分析了几种模型中组元性能对复合材料压电性能的影响,提出了改进复合材料压电性能的方法. 相似文献
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罗大兵 《武汉理工大学学报(材料科学英文版)》2007,22(1):165-167
Serial material model (Dilute model)and Limited Units (LU)method were employed to analyze the performance of binary piezo-composite system.The reckoned electric potential deployments illustrated difference while the particles were different.Their piezoelectricities were also calculated according to the model,and furthermore comparation suggested that small particles living in the tolerance improve the piezoelectricity of piezo-composite.Experiments coinciding with analyses were processed simultaneously. Ceramics were milled for different time in order to control the concentration of particle size.The results showed that the filled particles enhanced the piezoelectricity of binary piezo-composite system efficiently whereas too many chips deteriorated the performance of piezo-composites. 相似文献
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采用Sol-Gel法,通过适量的元素掺杂合成了具有钙钛矿结构的PZT粉体.探讨粉体的合成条件,合成粉体具有较低的介电常数和立方体形貌,同时还具有较高的压电常数,适合于用作复合压电材料的陶瓷相. 相似文献
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采用压力喷涂方法在 SUS316不锈钢基材上制备二硫化钼(MoS2)涂层,并在往复滑动球-平面配副下测试工作温度对其摩擦学性能的影响。实验结果表明:工作温度对 MoS2涂层的摩擦学性能有极大的影响,在100~300℃之间,涂层呈现出较好的减摩性,而在100~200℃之间耐磨性最好,300℃时涂层寿命急剧降低。综合考虑,压力喷涂 MoS2涂层最适合的工作温度范围为100~200℃。 相似文献
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本文着重介绍600MW 汽轮发电机转子铜线直线(端部)凹槽气动铣夹具加工转子铜线工艺方法及夹具结构。 相似文献
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