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Joining method of the tube (BI, PB) of -2223 oxide high-temperature superconductors using the improved superconducting paste
Joining method of the tube (BI, PB) of -2223 oxide high-temperature superconductors using the improved superconducting paste
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机译：使用改进的超导浆料的-2223氧化物高温超导体管（BI，PB）的连接方法
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摘要
[ Problems ] The invention provides an improved method for joining tubes superconducting tube is formed of an oxide superconductor . Oxide superconductor of the superconducting tube are joined together [ SOLUTION ] can be summarized to one another on a common bush . A method of bonding an oxide superconducting tube formed from cold isostatic pressing , a step of preparing an oxide superconducting tube having an end face to be joined , to expose a new surface , the tubes are a step of polishing the end faces of both inner and / outer surfaces of the terminal portion of both , and applying a superconductive paste on the end surface / inner surface are the polishing , the steps are summarized in the common bush with one another these tubes , a step of pressing as close to each other end face , which is the coating , forming a junction by coating a superconducting paste terminal portion that is bonded , the steps of winding a Yuanagin sheet end portion that is the coating , and a step of sintering at a temperature in the range 100 to 150 hours in air of 830 ~850 and tubing joints, the bonding method can be followed . In the joint obtained by this method , I can more than 91% of the transport current of high-temperature superconducting tube flows stable . When joining oxide superconductor by using a bushing which is made of an oxide superconducting material , improved superconducting paste is applied to the region of the inner surface / outer surface , in which case , an oxide superconductor which are joined together interface / tube of the oxide superconducting tubes to be joined to each other a transmission path of the current flowing between the construction tubes is - undisturbed by the the polished end face / surface at least a portion of the bushing interface , thereby how superconductivity of the superconductor which is joined is improved , joining together the oxide superconductor . [ Selection ] Figure Figure 1
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