论文部分内容阅读
因为高Tc超导体在液氮温区具有超导电性,所以在很多工程领域,从电敏感器到发电机,从纳米尺寸的薄膜到用千米长线绕制的线圈,都有广泛的应用。所以,以烧结粉为开始材料,设计和制造近成品开头的超导部件是当今工业界极其重要的研究课题。希腊雅典国家技术大学介绍了多种高能比粉末压实技术。压实技术有很多种方法,其中的爆炸压实技术,利用冲击波把金属烧结粉末压成固体部件,早已应用于陶瓷、高Tc超导体和超硬材料的制备领域。对工业生产来说,爆炸压实是最好的技术之一,它可制备各种几何形状的部件。这种技术可分为很多种类,例如圆柱单管配置,圆柱双管配置等等。例如:将Y2O3,Ba（OH）2·8H2O,KF·2H2O,CuO和AgNO3按化学计量比混合,混合粉放在玛瑙
Because of their superconductivity in the liquid nitrogen temperature zone, high Tc superconductors are widely used in many engineering fields, from electrical sensors to generators, from nanosized films to coils wound with kilometra long lines. Therefore, the use of sintered powder as a starting material, the design and manufacture of superconducting components near the beginning of the finished product is an extremely important research topic in today’s industry. National Technical University of Athens, Greece introduced a variety of energy-efficient than powder compaction technology. There are many methods of compaction technology, including explosion compacting technology, the use of shock wave to metal sintered powder pressed into solid parts, has long been used in ceramics, high Tc superconductors and superhard materials preparation. Explosion compaction is one of the best technologies for industrial production, and it can produce parts of various geometries. This technology can be divided into many categories, such as cylindrical single tube configuration, cylindrical double tube configuration and so on. For example: Y2O3, Ba (OH) 2 · 8H2O, KF · 2H2O, CuO and AgNO3 stoichiometric mixing, mixing powder on the agate