Publicação: Powder diffraction of components subject to corrosion in fuse cutouts with ceramiclnsulation
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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 SiO 2 (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.
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Ceramic, Corrosion, Fuse cutouts, Mullite, X-ray diffraction
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Inglês
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Materials Science Forum, v. 591-593, p. 548-553.
