Processing and superconducting properties of Hg1-xRexBa2Ca2Cu3O8+delta

Sin, A.; Odier, P.; Cunha, Ana Cristina Barros da; Orlando, M. T. D.; Piñol, S.; Baggio‐Saitovitch, E.; Obradors, X.

doi:10.1088/0953-2048/12/12/330

Cited by 3 publications

(2 citation statements)

References 22 publications

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“…This could mean that the overdoping is obtained under the thermal treatment conditions applied in the synthesis process. In a previous work it was demonstrated that the "nal oxygen content of the (Hg,Re)-1223 as-prepared superconducting samples (39,46) can be de"ned during the precursor synthesis.…”

Section: Superconducting Propertiesmentioning

confidence: 99%

Structural and Superconducting Properties of Hg0.75Re0.25Ba2−xSrxCa2Cu3O8+δ Superconductors Grown by Sol–Gel and Sealed Quartz Tube Synthesis

Sin¹,

Alsina

Mestres

et al. 2001

Journal of Solid State Chemistry

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Section: Superconducting Propertiesmentioning

confidence: 99%

Structural and Superconducting Properties of Hg0.75Re0.25Ba2−xSrxCa2Cu3O8+δ Superconductors Grown by Sol–Gel and Sealed Quartz Tube Synthesis

Sin¹,

Alsina

Mestres

et al. 2001

Journal of Solid State Chemistry

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“…The mercury pressure is much larger than the oxygen partial pressure and the knowledge of the total pressure might be sufficient in a first approximation. Sin et al [22,23], developed some simple equipment to measure this pressure in situ: the so-called thermobaric analyser (TBA) and this is an adaptation of a Bourdon manometers see figure 5. The total pressure is probed by the displacement of a quartz spiral amplified by a quartz rod.…”

Section: Mercuration In Close Quartz Ampoule: In Situ Measurement Of ...mentioning

confidence: 99%

Synthesis of mercury cuprates

Odier¹,

Sin²,

Toulemonde³

et al. 2000

Supercond. Sci. Technol.

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Mercury cuprates have very interesting potential applications that have not been thoroughly explored until now because of the complexity of their synthesis. This paper presents an overview of recent results concerning their processing. At first, a simple sol-gel technique is described that permits one to easily and intimately mix the precursors. The method uses the gelification of an inorganic solution of the cations by acrylamide polymerization. Mercuration of the precursor at moderate pressures (<2-5 MPa) is then discussed. The control of the total pressure during the synthesis by a simple method is shown, and this enables one to quantify some important parameters of the synthesis and to optimize the superconducting properties. This method has been also used successfully to incorporate mercury into layers of precursors and then to form thick layers of superconducting (Hg, Re)-1223, c-axis oriented. Finally, mercuration at higher pressures (up to 6 GPa) is considered and the case of the double mercury layer Hg-2212 is discussed in connection with the oxygen content of the reactants.

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Thick films of (Hg, Re)-1223 by aerosol deposition at high temperature

Sin

Supardi

Odier

et al. 2000

Supercond. Sci. Technol.

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A thick film (~1 µm) of (Hg, Re)-1223 precursor has been deposited on a substrate at high temperature (800 °C) from an aerosol. The mercuration is then performed ex situ in a sealed quartz ampoule. This forms a (Hg, Re)-1223 superconducting film of optimum Tc (133 K) without post-annealing oxygen processes. The film is c-axis textured. The total process is fast and low cost and could be easily scaled up.

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Processing and superconducting properties of Hg_1-xRe_xBa₂Ca₂Cu₃O_8+delta

Cited by 3 publications

References 22 publications

Structural and Superconducting Properties of Hg0.75Re0.25Ba2−xSrxCa2Cu3O8+δ Superconductors Grown by Sol–Gel and Sealed Quartz Tube Synthesis

Structural and Superconducting Properties of Hg0.75Re0.25Ba2−xSrxCa2Cu3O8+δ Superconductors Grown by Sol–Gel and Sealed Quartz Tube Synthesis

Synthesis of mercury cuprates

Thick films of (Hg, Re)-1223 by aerosol deposition at high temperature

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