Synthesis of hexacelsian barium aluminosilicate by film boiling chemical vapour process |
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Affiliation: | 1. Department of Physics, All Saints’ College, University of Kerala, Trivandrum, Kerala, India, 695007;2. Post Graduate Department of Physics, Mahatma Gandhi College, Research Centre, University of Kerala, Trivandrum, India, 695004;3. School of Physics and Materials Science, Thapar Institute of Engineering & Technology, Patiala, Punjab, India 147004 |
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Abstract: | An original oxide/oxide ceramic-matrix composite containing mullite-based fibers and a barium aluminosilicate matrix has been synthesized by the film boiling chemical vapour infiltration process. Alkoxides were used as liquid precursors for aluminum, silicon and barium oxides. The structure and microstructure of the oxide matrix were characterized by Scanning Electron Microscopy, Energy Dispersive Spectroscopy and X-ray diffraction. Apart from small residual mullite and amorphous phase amounts, the oxide matrix is composed of the hexacelsian phase, conferring to the material interesting perspectives for high-temperature electromagnetic and structural applications. |
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Keywords: | Film-boiling process Hexacelsian barium aluminosilicate (BAS) Ceramic matrix composite (CMC) oxide/oxide composite |
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