Microstructure and phase composition of Hg-1223 bulk phase superconductors

Gerhard Gritzner; Karl Kellner; Kazimierz Przybylski

doi:10.1016/s0921-4534(98)00386-4

Microstructure and phase composition of Hg-1223 bulk phase superconductors

Gerhard Gritzner
, Karl Kellner
, Kazimierz Przybylski

Institut für Chemische Technologie Anorganischer Stoffe

Publikation: Beitrag in Fachzeitschrift › Artikel › Begutachtung

Abstract

The superconducting HgPb0.4Ba2Ca2Cu3Oy 1223 phase was prepared by a mixed oxide technique and by solid state reactions. The resistance measurements yielded Tc(0)-values of 126 K with transition widths of 4 K. X-ray diffraction confirmed the presence of the superconducting 1223 phase. Scanning electron microscopy in combination with EDX showed that besides the superconducting crystallites, BaCuO2, CaO, CuO, BaPbO3 as well as BaCO3 and BaO and CaO mixtures and CaHgO2 were present as secondary phases. High-resolution optical microscopy in normal and polarized light yielded information on the porosity and the distribution of the superconducting and the secondary phases

Originalsprache	Englisch
Seiten (von - bis)	99 - 104
Seitenumfang	6
Fachzeitschrift	Physica C: Superconductivity
Volume	307
Ausgabenummer	1-2
DOIs	https://doi.org/10.1016/s0921-4534(98)00386-4
Publikationsstatus	Veröffentlicht - 01 Okt. 1998

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104005 Elektrochemie
104006 Festkörperchemie
104014 Oberflächenchemie
104017 Physikalische Chemie
105113 Kristallographie
105116 Mineralogie
503013 Fachdidaktik Naturwissenschaften
204 Chemische Verfahrenstechnik
204001 Anorganisch-chemische Technologie
205016 Werkstoffprüfung
210006 Nanotechnologie
211104 Metallurgie

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abstract = "The superconducting HgPb0.4Ba2Ca2Cu3Oy 1223 phase was prepared by a mixed oxide technique and by solid state reactions. The resistance measurements yielded Tc(0)-values of 126 K with transition widths of 4 K. X-ray diffraction confirmed the presence of the superconducting 1223 phase. Scanning electron microscopy in combination with EDX showed that besides the superconducting crystallites, BaCuO2, CaO, CuO, BaPbO3 as well as BaCO3 and BaO and CaO mixtures and CaHgO2 were present as secondary phases. High-resolution optical microscopy in normal and polarized light yielded information on the porosity and the distribution of the superconducting and the secondary phases",

author = "Gerhard Gritzner and Karl Kellner and Kazimierz Przybylski",

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AU - Kellner, Karl

AU - Przybylski, Kazimierz

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N2 - The superconducting HgPb0.4Ba2Ca2Cu3Oy 1223 phase was prepared by a mixed oxide technique and by solid state reactions. The resistance measurements yielded Tc(0)-values of 126 K with transition widths of 4 K. X-ray diffraction confirmed the presence of the superconducting 1223 phase. Scanning electron microscopy in combination with EDX showed that besides the superconducting crystallites, BaCuO2, CaO, CuO, BaPbO3 as well as BaCO3 and BaO and CaO mixtures and CaHgO2 were present as secondary phases. High-resolution optical microscopy in normal and polarized light yielded information on the porosity and the distribution of the superconducting and the secondary phases

AB - The superconducting HgPb0.4Ba2Ca2Cu3Oy 1223 phase was prepared by a mixed oxide technique and by solid state reactions. The resistance measurements yielded Tc(0)-values of 126 K with transition widths of 4 K. X-ray diffraction confirmed the presence of the superconducting 1223 phase. Scanning electron microscopy in combination with EDX showed that besides the superconducting crystallites, BaCuO2, CaO, CuO, BaPbO3 as well as BaCO3 and BaO and CaO mixtures and CaHgO2 were present as secondary phases. High-resolution optical microscopy in normal and polarized light yielded information on the porosity and the distribution of the superconducting and the secondary phases

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U2 - 10.1016/s0921-4534(98)00386-4

DO - 10.1016/s0921-4534(98)00386-4

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