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Optical Transmittance Changes of Solid Preforms with Temperature II. Transparency of α-Al203 Ceramics after Sintering at 1250°C

L. Pach, Ľ. Bača, and J. Majling

Department of Ceramics, Glass, and Cement, Faculty of Chemical Technology, Slovak University of Technology, SK-812 37 Bratislava

 

Abstract: Fe2O3 content controls the microstructure (porosity, pore size, grain size) and correspondingly an evolution of the light transmittance of gel monoliths based on boehmite. Porosity decreases with Fe2O3 content and it is completely eliminated in samples containing 6 mass % Fe2O3. Resulting polycrystalline material becomes thus transparent at temperatures as low as 1250°C.

Full paper in Portable Document Format: 545a265.pdf

 

Chemical Papers 54 (5) 265–271 (2000)

Wednesday, December 07, 2022

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