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本文阐述了高Tc超导氧化物覆银或其他金属材料后的加工工艺,以及其他因素对加工工艺及超导性能的影响。这种硬脆的陶瓷氧化物其本身不具室温加工塑性,只有套上塑性金属借助塑性金属的变形来达到粉末在管内的流动。由于两种物质的塑性差异较大,因此给成材带来极大的困难。而成份的不均匀性、粉末粒度的大小,成材后粉末的致密度、包套材料与氧化物芯丝的热膨胀系数不同、氧化物与包套材料的反应、晶界间的弱连接以及对氧的敏感性等等均制约着Jc的提高。
This article describes the high Tc superconducting oxides of silver or other metal materials after the processing technology, and other factors on the processing technology and superconductivity. This hard and brittle ceramic oxide itself does not have room temperature processing plastic, only plastic plastic set by plastic deformation of the metal to achieve the flow of powder in the tube. Due to the large difference between the plasticity of the two materials, it brings great difficulties to the forming material. The composition of the non-uniform, the size of the powder particle size after the powder density, cladding materials and oxide core wire of the thermal expansion coefficient is different oxide and cladding materials, the weak connection between the grain boundary and oxygen The sensitivity and so on are restricting the improvement of Jc.