Scientific and Technical Aerospace Reports PDF Download
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 256
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 256
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722829056
Category :
Languages : en
Pages : 24
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Book Description
Bi sub 1.5 SrCaCu sub 2 O sub x has been prepared in the glassy state by rapid quenching of the melt. The kinetics of crystallization of various phases in the glass have been evaluated by a variable heating rate differential scanning calorimetry method. The formation various phases on thermal treatments of the glass has been investigated by powder X-ray diffraction and electrical resistivity measurements. Heating at 450 C formed Bi sub 2 Sr sub 2 CuO sub 6, which disappeared on further heating at 765 C, where Bi sub 2 Sr sub 2 CaCu sub 2 O sub 8 formed. Prolonged heating at 845 C resulted in the formation of a small amount of a phase with T sub c onset of approx. 108 K, believed to be Bi sub 2 Sr sub 2 Ca sub 2 Cu sub 3 O sub 10. This specimen showed zero resistivity at 54 K. The glass ceramic approach could offer several advantages in the fabrication of the high-T sub c superconductors in desired practical shapes such as continuous fibers, wires, tapes, etc. Bansal, Narottam P. and Deguire, Mark R. Unspecified Center NCC3-133; RTOP 307-51-00...
Author:
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ISBN:
Category :
Languages : en
Pages : 54
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Author: Lewis Research Center
Publisher:
ISBN:
Category : Space sciences
Languages : en
Pages : 256
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 268
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Author: Lewis Research Center
Publisher:
ISBN:
Category : Space sciences
Languages : en
Pages : 264
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Author:
Publisher:
ISBN:
Category : Ceramic materials
Languages : en
Pages : 692
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Author: S.-W. Kim
Publisher:
ISBN:
Category :
Languages : en
Pages : 284
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 256
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Book Description
