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

Alex V. Carvalho; Luis V.A. Scalvi; Jorge L.B. Maciel

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

Paper Titles

Study of Operational Conditions for the Precipitated Calcium Carbonate Production
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Thermal and Physico-Mechanical Characterization of Paraíba’s State Soils to Applying in Soil-Cement Bricks
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Evaluation of Silicon Nitride Ceramic Cutting Tools with Diamond Coatings
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Silicon Carbide Whiskers Interference on Silicon Nitride Based Composite
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Powder Diffraction of Components Subject to Corrosion in Fuse Cutouts with Ceramic Insulation
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Evaluation of the Performance of α-SiAlON Tool when Turning Ti–6Al–4V Alloy without Coolant
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High Temperature Properties of Silicon Nitride with Neodymium Oxide Additions
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α-SiAlON: Development and Machining Test on Gray Cast Iron
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Comparative Study on Turning CI and CGI Using Silicon Nitride Cutting Tools
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HomeMaterials Science ForumMaterials Science Forum Vols. 591-593Powder Diffraction of Components Subject to...

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

Abstract:

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.