This work aims at investigating the effects of the processing conditions on the final microstructure of glass-alumina functionally graded materials (FGMs). The ingredient materials, i.e. a polycrystalline sintered alumina and a CaO-ZrO2-SiO2 glass, were accurately characterized, since their mechanical and thermal properties may deeply influence the fabricating process and the overall FGM behaviour. The functionally graded materials were obtained by means of percolation of the molten glass into the alumina substrate. Two types of samples were considered-the Bulk FGMs, produced starting from a glass bulk, and the Powder FGMs, produced starting from a glass powder; in both cases four different heating cycles were attempted. The functionally graded materials were analysed using a SEM-EDS and a X-ray diffractometer. Great attention was devoted to the resulting microstructure; moreover the depth of penetration was measured and related to the fabricating parameters, such as time and temperature.

Preparation and experimental characterization of glass-alumina functionally graded materials / Cannillo, Valeria; Manfredini, Tiziano; Siligardi, Cristina; Sola, Antonella. - In: JOURNAL OF THE EUROPEAN CERAMIC SOCIETY. - ISSN 0955-2219. - STAMPA. - 26:(2006), pp. 993-1001.

Preparation and experimental characterization of glass-alumina functionally graded materials

CANNILLO, Valeria;MANFREDINI, Tiziano;SILIGARDI, Cristina;SOLA, Antonella
2006

Abstract

This work aims at investigating the effects of the processing conditions on the final microstructure of glass-alumina functionally graded materials (FGMs). The ingredient materials, i.e. a polycrystalline sintered alumina and a CaO-ZrO2-SiO2 glass, were accurately characterized, since their mechanical and thermal properties may deeply influence the fabricating process and the overall FGM behaviour. The functionally graded materials were obtained by means of percolation of the molten glass into the alumina substrate. Two types of samples were considered-the Bulk FGMs, produced starting from a glass bulk, and the Powder FGMs, produced starting from a glass powder; in both cases four different heating cycles were attempted. The functionally graded materials were analysed using a SEM-EDS and a X-ray diffractometer. Great attention was devoted to the resulting microstructure; moreover the depth of penetration was measured and related to the fabricating parameters, such as time and temperature.
26
993
1001
Preparation and experimental characterization of glass-alumina functionally graded materials / Cannillo, Valeria; Manfredini, Tiziano; Siligardi, Cristina; Sola, Antonella. - In: JOURNAL OF THE EUROPEAN CERAMIC SOCIETY. - ISSN 0955-2219. - STAMPA. - 26:(2006), pp. 993-1001.
Cannillo, Valeria; Manfredini, Tiziano; Siligardi, Cristina; Sola, Antonella
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/304598
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