ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Three kinds of Ag-sheathed (Bi,Pb)2Sr2Ca2Cu3O10 ((Bi,Pb)-2223) monofilamentary tapeswere fabricated by powder-in-tube (PIT) process under different conditions. The phase evolutionsduring melting and reformation of (Bi,Pb)-2223 core in them have been investigated by ex-situ X-raydiffraction (XRD) analysis. The short tapes were melted at 855ºC, 858ºC in 7.5% O2 balanced withargon, and then slowly cooled to 801ºC and 804ºC at 1.5ºC/h, respectively. The results show that the(Bi,Pb)-2223 phase can reform directly from the melt in all three tapes if the appropriate meltingtemperatures are used. However, the ceramic cores underneath the silver sheath exhibit differentmelting and recrystalization behaviors, as the differences of phase compositions in the original tapesbefore melted
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.1967.pdf
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