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Design parameters for processing flexible Nb/sub 3/Al high field superconducting tapes and wires

Description: A process was developed to fabricate Nb/sub 3/Al composite wires at a temperature below 1000/sup 0/C. This process consists of a solution heat treatment which forms a metastable solid solution upon quenching. The solid solution transforms to the A-15 phase by subsequent low-temperature aging. The onset temperature of superconductivity of the resulting material, as measured inductively, was 17.6 +- 0.5/sup 0/K. This is 2/sup 0/K higher than has been previously reported for Nb/sub 3/Al formed bel… more
Date: December 1, 1975
Creator: Ciardella, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Final report to Lawrence Livermore Laboratory

Description: Results of research devoted to preparation of 3500 and 1000 A conductors are reported. Extrusion experiments on Nb and Nb1Zr are reported. It was found that a secondary extrusion step causes product degradation. The extent of diameter reduction during extrusion does not adversely affect the quality of wire products. The construction and processing conditions for conductors fabricated during the report period are tabulated. (JRD)
Date: December 9, 1975
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Absorption of short-pulse electromagnetic energy by a resistively loaded straight wire

Description: Absorption of short-pulse electromagnetic energy by a resistively loaded straight wire is examined. Energy collected by the wire, load energy, peak load currents, and peak load voltages are found for a wide range of parameters, with particular emphasis on nuclear electromagnetic pulse (EMP) phenomena. A series of time-sequenced plots is used to illustrate pulse propagation on wires when loads and wire ends are encountered. (auth)
Date: October 17, 1975
Creator: Miller, E. K.; Deadrick, F. J. & Landt, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

2XIIB getter material problems

Description: The uniformity of wire characteristics is vital to the reliable long- time operation of the titanium alloy wire. Of particular importance is the diameter, total emissivity, and alloy mix. The getter wire must be operated at a minimum rate while the life is determined by the maximum rate. At a particular current the difference between the maximum and minimum rate is determined by variations in wire characteristics. Small percentage variations in these characteristics can result in large variatio… more
Date: November 18, 1975
Creator: Vogtlin, G. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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