Foaming of flat glass cullet using Si3N4 and MnO2 powders
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Scholar |
Otros documentos de la autoría: Saburit Llaudis, Alejandro; Orts Tarí, María José; García Ten, Francisco Javier; Bernardo, Enrico; Colombo, Paolo
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Mostrar el registro completo del ítemcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7033
comunitat-uji-handle3:10234/8618
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http://dx.doi.org/10.1016/j.ceramint.2008.10.022 |
Metadatos
Título
Foaming of flat glass cullet using Si3N4 and MnO2 powdersAutoría
Fecha de publicación
2009Editor
ElsevierISSN
2728842Cita bibliográfica
Ceramics International, 35, 5, p. 1953-1959Tipo de documento
info:eu-repo/semantics/articlePalabras clave / Materias
Resumen
The introduction of a compound capable of releasing oxygen, such as MnO2, greatly improves the foaming ability of Si3N4 used as foaming agent in soda-lime glass powder, leading to expansion at a relatively low tempe ... [+]
The introduction of a compound capable of releasing oxygen, such as MnO2, greatly improves the foaming ability of Si3N4 used as foaming agent in soda-lime glass powder, leading to expansion at a relatively low temperature (800-850 °C) and short processing time (7-30 min). The effect is based on the supply of oxygen, in addition to that in the furnace atmosphere. At the highest level of porosity, however, the strength of foams is negatively affected by a coarse microstructure, determined by cell coalescence. The reduction of firing temperature or, above all, the reduction of the processing time, was found to limit the coalescence and significantly improve the strength of the foams. © 2008 Elsevier Ltd and Techna Group S.r.l. [-]
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info:eu-repo/semantics/restrictedAccess
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