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Boletín de la Sociedad Española de Cerámica y Vidrio
Article . 2005 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
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Obtención de espumas a partir de residuos de pizarra

Ceramic foams manufacturing from slate wastes
Authors: Cambronero, L. E. G.; Ruiz-Román, J. M.; Ruiz Prieto, J. M.;

Obtención de espumas a partir de residuos de pizarra

Abstract

La transformación de los residuos de pizarra de techar en materias primas no tradicionales de la industria cerámica, es el objetivo del presente trabajo. Sin la adición de agentes espumantes, mediante la alteración que sufren los componentes de la pizarra cuando la misma es sometida a un calentamiento en atmósfera no oxidante, se han alcanzado espumas de poro cerrado o cerámica porosa de color gris oscuro con densidades próximas a 0,3 g/cm3 en las que las paredes están formadas principalmente por una fase vítrea. La materia prima empleada se obtiene por secado de lodos procedentes de las operaciones de corte de la pizarra para techar. Los compactos en verde obtenidos en matriz flotante se sinterizaron en atmósfera de N2-5% H2 a distintas temperaturas, así como en aire a 1150ºC como material de referencia y se empleó la difracción de rayos X para determinar las fases cristalinas presentes en los materiales obtenidos. Mediante dilatometría se estudio la densificación en ambas atmósferas. La densidad alcanzada en condiciones de atmósfera no oxidante disminuye al aumentar la temperatura de sinterización, y con ello las propiedades mecánicas del material. La estructura celular empieza a desarrollarse cuando se sinteriza en N2-5% H2 por encima de 1075ºC.

Peer reviewed

Keywords

TP785-869, Pizarras, ceramic foams, Clay industries. Ceramics. Glass, Slates, espumas cerámicas, recycling, reciclado

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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