Powder Diffraction of Components Subject to Corrosion in Fuse Cutouts with Ceramic Insulation

Abstract:

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Aiming identification of the components most affected by corrosion under saline environment conditions, we have carried out X-ray diffraction measurements in ceramic and bond materials, all in the powder form. The ceramic is analyzed before and after thermal annealing at 1000°C, showing the same DRX peaks, although better defined after annealing. Identification suggests the presence of Al6Si2O13 (Mullite) and SiO2 (Quartz). Analysis of the junction (bond) material shows similar peaks, but a metallic preponderance is observed. Thermal annealing of the junction is done at much lower temperature, because it melts in the range 135°C-170°C, when a whitish smoke begins to show up along with strong sulfur odor.

Info:

Periodical:

Materials Science Forum (Volumes 591-593)

Edited by:

Lucio Salgado and Francisco Ambrozio Filho

Pages:

548-553

DOI:

10.4028/www.scientific.net/MSF.591-593.548

Citation:

A. V. Carvalho et al., "Powder Diffraction of Components Subject to Corrosion in Fuse Cutouts with Ceramic Insulation", Materials Science Forum, Vols. 591-593, pp. 548-553, 2008

Online since:

August 2008

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Price:

$35.00

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