The present study deals with the computer-aided simulation of the microwave heating of metal/glass composites in single mode applicator and the rapid densification of borosilicate glass matrix composites containing molybdenum particle inclusions. The selective and penetrating microwave heating led to a layered porous structure of the samples. They consisted of a highly porous core containing spherical pores and a relatively dense outer shell. Pores in the central region were formed in the molten glass phase due to gas evolution and entrapment. The outer region of the sample remained at lower temperature and it sintered by viscous flow with minimal distortion.
Unique microstructure of glass-metal composites obtained by microwave assisted heat-treatments / Veronesi, Paolo; Leonelli, Cristina; Pellacani, Gian Carlo; Ar, Boccaccini. - In: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY. - ISSN 1388-6150. - STAMPA. - 72:(2003), pp. 1141-1149. [10.1023/A:1025040314952]
Unique microstructure of glass-metal composites obtained by microwave assisted heat-treatments
VERONESI, Paolo;LEONELLI, Cristina;PELLACANI, Gian Carlo;
2003
Abstract
The present study deals with the computer-aided simulation of the microwave heating of metal/glass composites in single mode applicator and the rapid densification of borosilicate glass matrix composites containing molybdenum particle inclusions. The selective and penetrating microwave heating led to a layered porous structure of the samples. They consisted of a highly porous core containing spherical pores and a relatively dense outer shell. Pores in the central region were formed in the molten glass phase due to gas evolution and entrapment. The outer region of the sample remained at lower temperature and it sintered by viscous flow with minimal distortion.
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