weak doping 中文意思是什麼
weak doping
解釋
弱摻雜-
It has weak - link free grain boundaries and is a kind of low cost material, . which could be used under 20k ~ 30k. however, mgb2 reveals a poor jc property in high magnetic field. currently in the research of the mgb2 wires and tapes many efforts have been made to improve its grain connection or enhance the jc dependence on the magnetic field using the method of chemical doping
二硼化鎂是迄今為止所發現的超導臨界轉變溫度最高的非銅氧化物超導材料,它具有無弱連接、成本低廉、能夠在20k 30k應用等優勢,但是mgb2在外場下的臨界電流特性較差,目前在優化粉末套管法制備mgb2線帶材工藝的研究中,通過改善晶間連接和利用化學摻雜提高樣品的超導臨界電流密度是mgb2成材研究的一個重要方向。
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