INFLUENCE OF GEOMETRICAL CONFIGURATION OF SUPERCONDUCTING MATERIAL ON GROWTH OF Nb_3Sn

Acta Metall Sin

1988, Vol. 24

Issue (5): 412-419 DOI:

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INFLUENCE OF GEOMETRICAL CONFIGURATION OF SUPERCONDUCTING MATERIAL ON GROWTH OF Nb_3Sn

LUO Le;HU Suhui Shanghai Institute of Metallurgy; Academia Sinica

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LUO Le;HU Suhui Shanghai Institute of Metallurgy; Academia Sinica. INFLUENCE OF GEOMETRICAL CONFIGURATION OF SUPERCONDUCTING MATERIAL ON GROWTH OF Nb_3Sn. Acta Metall Sin, 1988, 24(5): 412-419.

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Abstract Boundary conditions constructed by two typical geometrical config-urations related to the manufacturing methods of bronze process and tin-rich Nbtube method have been considered in a diffusion model in which the diffusion ofSn in CuSn matrix plays a major role is assumed. The dependence of thickness ofNb_3Sn layer on reaction time has been derived. It is shown that the growth rate ofNb_3Sn relates to the configuration of the superconductor, the geometrical parametersof Nb filaments and CuSn matrix. The theory are qualitatively consistent with theexperimental results.

Key words: superconducting material Nb_3Sn geometrical configuration kenetics of diffusion growth rate

Received: 18 May 1988

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