Volcanic ash as flux in clay based triaxial ceramic materials, effect of the firing temperature in phases and mechanical properties
作者： M.F. Serra , M.S. Conconi , G. Suarez , E.F. Aglietti , N.M. Rendtorff
DOI: 10.1016/J.CERAMINT.2014.12.123
关键词: Ceramic 、 Volcanic ash 、 Flux (metallurgy) 、 Composite material 、 Differential thermal analysis 、 Materials science 、 Flexural strength 、 Feldspar 、 Raw material 、 Phase (matter)
摘要: Abstract The study of possible incorporation nontraditional starting powders is a contribution to the rational utilization raw materials in ceramic industry. technological properties solid waste problems (both urban and industrial) many cases are not correctly studied reported. main objective present work demonstrate applicability volcanic ash for fabrication clay based as flux fraction replacing feldspar. This paper deals with particular material (volcanic ash) but results can be extended resulting from similar sources properties. milled was characterized employed agent feldspar model triaxial (clay–quartz–flux) formulation. Previously, characterized. Differential Thermal Analysis termogravimetry (DTA–TG) order establish firing conditions were also carried out. Afterwards, thermal treatments (900–1300 °C) studied: temperatures correlated shrinkage–porosity–density evolution. crystalline phase evolution established compared one observed material. Finally mechanical obtained (flexural strength dynamic elastic modulus) evaluated. permitted corroborate some
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