融盐铝电解中若干物理化学问题的研究

概述了融盐铝电解中若干物理化学问题,这些是50多年来作者一直思索着的问题·其中涉及电极湿润性,金属在融盐中的溶解,制取铝基母合金,工业铝电解槽的能量平衡,以及低温铝电解·所得的结论,是也有,非也有,希望继续加以研究·     

Dielectric AlN/epoxy and SiC/epoxy composites with enhanced thermal and dynamic mechanical properties at low temperatures

In a superconducting magnet, the thermal properties of the insulating material at low temperatures is an important technical index to ensure the normal operation of a superconducting coil. Herein, a low-temperature thermal conductivity testing device with a tiny uncertainty was developed to measure the composites. Furthermore, SiC/epoxy and AlN/epoxy composites were prepared and their properties were tested at low temperatures. The results showed that the composites have a better thermal conductivity at low temperatures than pure epoxy. In addition, the AlN/epoxy and SiC/epoxy composites have excellent dynamic mechanical properties and low coefficient of thermal expansion. Due to the fair thermal and dynamic mechanical properties, the composites will have potential application in the superconducting magnet.