Abstract
The critical current densities, Jc, of hot-worked Mo-sheathed PbMo6S8 wires are affected very much by their composition and heat treatments. For example, Jc for Pb1+xMo6S7.5 wires heat treated at 700°C took a maximum value at x = 0.02 (Jc = 2.1–2.9 × 108 A/m2 at 8 T), and decreased mono-tonically with increasing x (Jc ≈ 0.8 × 108 A/m2 for x = 0.05, and 0.3 × 108 A/m2 for x = 0.1). We have investigated the Jc values for many Pb1+xMo6S8-y sample wires, and microstructural analyses have been performed using SEM and TEM techniques. It has been demonstrated that Jc is not determined only by the grain size, which is only of order 0.1–0.3 μm at optimum, and that the connections between PbMo6S8 grains are in general not complete.
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© 1990 Plenum Press, New York
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Yamasaki, H., Willis, T.C., Larbalestier, D.C., Kimura, Y. (1990). Microstructure and Critical Current Densities of PbMo6S8 in Hot-Worked Mo-Sheathed Wires. In: Reed, R.P., Fickett, F.R. (eds) Advances in Cryogenic Engineering Materials . An International Cryogenic Materials Conference Publication, vol 36. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-9880-6_45
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DOI: https://doi.org/10.1007/978-1-4613-9880-6_45
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