The application of microwave radiation as the heating source for the processing of glass matrix composites containing metallic particles has been investigated. A borosilicate glass powder was chosen for the matrix. The metal inclusions investigated were molybdenum, tungsten, aluminium. titanium. nickel and iron particles in volume concentration of 10%. The average particle size of primary metallic particles varied between 2 and 50 mum. The microwave heating process was carried out in a self-constructed multimode microwave applicator operating at the 2.45 GHz ISM frequency. For comparison, samples were also made by conventional powder technology and sintering. The microwave- and conventionally-processed samples were characterised in terms of: particle distribution, density and glass/metal particle interfacial characteristics. The microwave-processed samples had densities up to 96% of that of the conventionally-processed samples and were obtained in significantly shorter times (7 min versus similar to7 h). In case of glass/Mo composites, a recently developed computational model based on the OOF finite element code was used in order to calculate the residual thermal stresses in the samples.
|Data di pubblicazione:||2004|
|Titolo:||Processing of novel glass matrix composites by microwave heating|
|Autore/i:||Ej, Minay; Ar, Boccaccini; Veronesi, Paolo; Cannillo, Valeria; Leonelli, Cristina|
|Codice identificativo ISI:||WOS:000225845800099|
|Codice identificativo Scopus:||2-s2.0-10044231498|
|Citazione:||Processing of novel glass matrix composites by microwave heating / Ej, Minay; Ar, Boccaccini; Veronesi, Paolo; Cannillo, Valeria; Leonelli, Cristina. - In: JOURNAL OF MATERIALS PROCESSING TECHNOLOGY. - ISSN 0924-0136. - STAMPA. - 155-156(2004), pp. 1749-1755.|
|Tipologia||Articolo su rivista|
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