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Elevated-temperature mechanical properties and thermal stability of Al-Cu-Mg-Ag heat-resistant alloy 被引量:3
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作者 宋艳芳 潘清林 +2 位作者 王迎 李晨 丰雷 《Journal of Central South University》 SCIE EI CAS 2014年第9期3434-3441,共8页
The elevated-temperature mechanical properties and thermal stability of Al-Cu-Mg-Ag heat-resistant alloy were studied by tensile test, transmission electron microscopy(TEM) and scanning electron microscopy(SEM), respe... The elevated-temperature mechanical properties and thermal stability of Al-Cu-Mg-Ag heat-resistant alloy were studied by tensile test, transmission electron microscopy(TEM) and scanning electron microscopy(SEM), respectively. The results show that with the increase of Ag content, the tensile strength and yield strength increase, which is attributed to the increase of the precipitations number and the decrease of the size. The same conclusions are drawn in the study of increasing Mg content. The alloy possesses excellent thermal stability. At 100-150 °C, the strength of the under-aged alloy increases at the initial stage, and after reaching the peak strength, it remains the same. The secondary precipitation of the under-aged alloy occurs in the process of exposure at 150℃, and it distributes diffusely after thermal exposed for 20 h. Then, the tensile strength decreases gradually with increasing the thermal exposure time at 200-250 °C. The strength of the peak-aged alloy decreases gradually, and the precipitation grows up, but the number decreases gradually with prolonging the exposure time at 100-250 °C. The strength of two kinds of alloys decreases with elevating of exposure temperature. 展开更多
关键词 evaluated-temperature mechanical properties thermal stability A1-Cu-Mg-Ag alloy
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基于飞秒激光烧蚀技术的银网格透明电极制备研究
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作者 张艳华 钟斌 +1 位作者 杨美玲 郝贵敏 《IT经理世界》 2021年第12期37-38,72,共3页
透明电极主要应用于热敏感性功能器件、触摸屏面板、电热传导设备、有机发光二极管和太阳能电池等,高透射率、高导电性和高机械特性是柔性透明电极的关键性能。本文采用飞秒激光直写银薄膜制备出了高机械性能和低成本的银网格柔性透明... 透明电极主要应用于热敏感性功能器件、触摸屏面板、电热传导设备、有机发光二极管和太阳能电池等,高透射率、高导电性和高机械特性是柔性透明电极的关键性能。本文采用飞秒激光直写银薄膜制备出了高机械性能和低成本的银网格柔性透明电极。所制备的银网格柔性透明电极可见光透射率大于92.1%、方块电阻小于15.4sq/Ω,可以与商业的ITO电极材料相媲美。此外,通过弯循环弯曲(9000次循环)、胶带黏附性测试发现,银网格柔性透明电极具有良好的減稳定性。未来可用于制作触摸屏面板,透明电加热器。 展开更多
关键词 银网格柔性透明电极 飞秒激光直写 光电特性 高机械稳定性
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