2002
DOI: 10.1590/s0366-69132002000100006
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Choque térmico em filtros cerâmicos do sistema Al2O3-SiC

Abstract: Em diversas aplicações as cerâmicas celulares são submetidas a tensões térmicas severas, tal como na filtração de metais fundidos. Contudo, há poucos estudos sobre o desempenho ao choque térmico destes materiais. Uma das razões é que a metodologia para análise desta classe de materiais deve ser distinta daquela utilizada para os materiais cerâmicos densos. Isto porque no caso dos materiais celulares para filtração de metais fundidos o meio causador do choque térmico infiltra-se rapidamente na estrutura reticul… Show more

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(2 citation statements)
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“…Moreover, the porosity of the glass ceramic foams corresponds to that of commercially available PU sponges, which lies around 95%, independent of the number of pores. 24 Porosity is essential for determining ceramic foam performance. Mechanical strength generally decreases with increasing porosity, while permeability is improved, so that a compromise must be found 24 when the reticulated porous glass ceramic is intended to be used as a gas filter.…”
Section: Characterisation Of Glass Ceramic Foamsmentioning
confidence: 99%
See 1 more Smart Citation
“…Moreover, the porosity of the glass ceramic foams corresponds to that of commercially available PU sponges, which lies around 95%, independent of the number of pores. 24 Porosity is essential for determining ceramic foam performance. Mechanical strength generally decreases with increasing porosity, while permeability is improved, so that a compromise must be found 24 when the reticulated porous glass ceramic is intended to be used as a gas filter.…”
Section: Characterisation Of Glass Ceramic Foamsmentioning
confidence: 99%
“…24 Porosity is essential for determining ceramic foam performance. Mechanical strength generally decreases with increasing porosity, while permeability is improved, so that a compromise must be found 24 when the reticulated porous glass ceramic is intended to be used as a gas filter. LZSA glass ceramic filters can be employed in a number of industrial filtration processes for removal of particulate matter, dust, smoke and fumes from gases up to 600uC.…”
Section: Characterisation Of Glass Ceramic Foamsmentioning
confidence: 99%