Powder preparation by organic precursor and densification of a high-Tc Bi-based superconductor

A. Tampieri; G. Celotti; F. Ricciardiello; G. Russo

doi:10.1016/0921-4534(94)90085-X

Powder preparation by organic precursor and densification of a high-T_c Bi-based superconductor

A. Tampieri, G. Celotti, F. Ricciardiello, G. Russo

Houston Methodist

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Homogeneous and reactive superconducting precursor powders were prepared by the pyroysis technique starting from a solution of citrates. Pyrolyzed organometallic precursors were fired to obtain a superconducting powder: multi-step synthesis at 855°C of only 24 h was found to be adequate to produce a high-purity (2223) phase. Dense superconducting materials were prepared and compared with those obtained from solid-state-reacted powders. To promote densification hot-pressing was used and the effect of the sintering parameters on the compositional, microstructural and functional characteristics of the material was evaluated.

Original language	English (US)
Pages (from-to)	300-308
Number of pages	9
Journal	Physica C: Superconductivity and its Applications
Volume	227
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4534(94)90085-X
State	Published - Jul 1 1994

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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abstract = "Homogeneous and reactive superconducting precursor powders were prepared by the pyroysis technique starting from a solution of citrates. Pyrolyzed organometallic precursors were fired to obtain a superconducting powder: multi-step synthesis at 855°C of only 24 h was found to be adequate to produce a high-purity (2223) phase. Dense superconducting materials were prepared and compared with those obtained from solid-state-reacted powders. To promote densification hot-pressing was used and the effect of the sintering parameters on the compositional, microstructural and functional characteristics of the material was evaluated.",

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AU - Tampieri, A.

AU - Celotti, G.

AU - Ricciardiello, F.

AU - Russo, G.

PY - 1994/7/1

Y1 - 1994/7/1

N2 - Homogeneous and reactive superconducting precursor powders were prepared by the pyroysis technique starting from a solution of citrates. Pyrolyzed organometallic precursors were fired to obtain a superconducting powder: multi-step synthesis at 855°C of only 24 h was found to be adequate to produce a high-purity (2223) phase. Dense superconducting materials were prepared and compared with those obtained from solid-state-reacted powders. To promote densification hot-pressing was used and the effect of the sintering parameters on the compositional, microstructural and functional characteristics of the material was evaluated.

AB - Homogeneous and reactive superconducting precursor powders were prepared by the pyroysis technique starting from a solution of citrates. Pyrolyzed organometallic precursors were fired to obtain a superconducting powder: multi-step synthesis at 855°C of only 24 h was found to be adequate to produce a high-purity (2223) phase. Dense superconducting materials were prepared and compared with those obtained from solid-state-reacted powders. To promote densification hot-pressing was used and the effect of the sintering parameters on the compositional, microstructural and functional characteristics of the material was evaluated.

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Powder preparation by organic precursor and densification of a high-T_c Bi-based superconductor

Abstract

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