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Characteristics of lightweight diatomite-based insulating firebricks

Characteristics of lightweight diatomite-based insulating firebricks

Authors :
Osman Gencel
Mustafa Sabri Gök
Mucahit Sutcu
Serkan Dal
Nevşehir Hacı Bektaş Veli Üniversitesi/mühendislik-mimarlık fakültesi/metalurji ve malzeme mühendisliği bölümü/metalurji ve malzeme mühendisliği anabilim dalı
Source :
JOURNAL OF THE KOREAN CERAMIC SOCIETY
Publication Year :
2020

Abstract

This study covers the physical, thermal, mechanical, and microstructural properties of porous ceramic materials produced from mixtures containing refractory clay and diatomite in different proportions. The raw materials were characterized by chemical (X-ray fluorescence), thermal (thermogravimetry), morphological (scanning electron microscopy), and phase (X-ray diffraction) analysis techniques. The prepared samples were sintered at different firing temperatures between 900 and 1100 °C in an electrical furnace. The bulk densities, apparent porosities, linear dimensional shrinkages, compression strengths, thermal conductivities, and microstructural properties of the sintered samples were investigated. The porosity of the sample with 90% diatomite content increased to 55.4%, density decreased to 1.02 g/cm3, and thermal conductivity coefficient decreased to 0.32 W/mK.

Details

Database :
OpenAIRE
Journal :
JOURNAL OF THE KOREAN CERAMIC SOCIETY
Accession number :
edsair.doi.dedup.....050e7f02427bbb35e7abdd0aa91ce514