Study of the sintering behaviour of MgB2 superconductor during hot-pressing

A. Tampieri; G. Celotti; S. Sprio; R. Caciuffo; D. Rinaldi

doi:10.1016/S0921-4534(03)01310-8

Study of the sintering behaviour of MgB₂ superconductor during hot-pressing

A. Tampieri, G. Celotti, S. Sprio, R. Caciuffo, D. Rinaldi

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

37 Scopus citations

Abstract

The densification behaviour of MgB₂ was studied when commercial powder was hot-pressed in the temperature range 1070-1190 °C. The mechanisms active during sintering were investigated by continuously recording the shrinkage vs. time and elaborating the data on the basis of Kingery's model for liquid phase sintering. XRD and SEM analysis on final dense bodies were used to evaluate secondary phases formation during sintering and the effect of magnesium sublimation. AC magnetic susceptibility measurements were also performed to correlate the microstructural and morphological modifications induced by hot-pressing and the superconducting properties.

Original language	English (US)
Pages (from-to)	97-104
Number of pages	8
Journal	Physica C: Superconductivity and its Applications
Volume	400
Issue number	3-4
DOIs	https://doi.org/10.1016/S0921-4534(03)01310-8
State	Published - Jan 1 2004

Keywords

Hot pressing
Kingery's model
MgB

ASJC Scopus subject areas

Condensed Matter Physics

Access to Document

10.1016/S0921-4534(03)01310-8

Cite this

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abstract = "The densification behaviour of MgB2 was studied when commercial powder was hot-pressed in the temperature range 1070-1190 °C. The mechanisms active during sintering were investigated by continuously recording the shrinkage vs. time and elaborating the data on the basis of Kingery's model for liquid phase sintering. XRD and SEM analysis on final dense bodies were used to evaluate secondary phases formation during sintering and the effect of magnesium sublimation. AC magnetic susceptibility measurements were also performed to correlate the microstructural and morphological modifications induced by hot-pressing and the superconducting properties.",

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AU - Tampieri, A.

AU - Celotti, G.

AU - Sprio, S.

AU - Caciuffo, R.

AU - Rinaldi, D.

PY - 2004/1/1

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AB - The densification behaviour of MgB2 was studied when commercial powder was hot-pressed in the temperature range 1070-1190 °C. The mechanisms active during sintering were investigated by continuously recording the shrinkage vs. time and elaborating the data on the basis of Kingery's model for liquid phase sintering. XRD and SEM analysis on final dense bodies were used to evaluate secondary phases formation during sintering and the effect of magnesium sublimation. AC magnetic susceptibility measurements were also performed to correlate the microstructural and morphological modifications induced by hot-pressing and the superconducting properties.

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KW - Kingery's model

KW - MgB

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