Study of the Evolution of Phase Calcium Aluminate through the Method for Polymeric Precursors C12A7

Faili Cintia Tomsen Veiga; Flávio José Tomsen Veiga; Mário Lúcio Moreira; José Jurado; Vânia Caldas Sousa; Sergio Cava

doi:10.4028/www.scientific.net/MSF.820.137

Paper Titles

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Synthesis of the Magnetic Nanoferrites of Spinel Type and Use in Esterification Reaction for Biodiesel Obtaining
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Synthesis and Characterization of Pseudoboehmite and Gamma-Alumina
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Study of the Evolution of Phase Calcium Aluminate through the Method for Polymeric Precursors C₁₂A₇
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Chemical Synthesis and Sintering Behaviour of Ca₃Al₂0₆ Obtained by Polymeric Precursor Method
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Sintering of Ca₂MgWO₆ Ceramic and its Stability Test in Crude Petroleum
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High Energy Milling of Alumina Synthesized by Combustion Reaction Using a Vertical Shaft Attritor Mill: Influence of the Milling Time Length
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Immobilized Enzyme Gox with Ferrite CoFe₂O₄ and Hybrid CoFe₂O₄/APTS
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HomeMaterials Science ForumMaterials Science Forum Vol. 820Study of the Evolution of Phase Calcium Aluminate...

Study of the Evolution of Phase Calcium Aluminate through the Method for Polymeric Precursors C₁₂A₇

Abstract:

The synthesis of ceramic materials from polymeric precursors has been the subject of numerous studies due to lower energy cost compared to conventional processing. The study aims to research and develop synthesis of calcium aluminate powders via the polymeric precursor method, in order to obtain the pure phase of hepta-aluminate dodecálcio (C₁₂A₇) with mayenita mineral name, since it has applications like: special cements and components for high temperature fuel cells. A study of the evolution of crystalline phases by X-ray diffraction was performed, the vibrational modes of atomic location in crystalline phases were studied by micro-Raman spectroscopy was also performed and images from scanning electron microscopy. From the characterizations carried out on the material can be seen that the sintering temperature of 1200°C was obtained pure phase, so the choice of synthesis shown to be effective due to the complexity of obtaining this phase pure.

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Periodical:

Materials Science Forum (Volume 820)

Pages:

137-142

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.820.137

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Online since:

June 2015

Authors:

Faili Cintia Tomsen Veiga*, Flávio José Tomsen Veiga, Mário Lúcio Moreira, José Jurado, Vânia Caldas Sousa, Sergio Cava

Keywords:

Calcium Aluminate, Mayenita, Polymeric Precursors

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