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Characteristics of lightweight diatomite-based insulating firebricks
Characteristics of lightweight diatomite-based insulating firebricks
- 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.
- Subjects :
- Diatomite
Materials science
Scanning electron microscope
02 engineering and technology
Raw material
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Thermogravimetry
Thermal conductivity
Sintering
Phase (matter)
visual_art
Thermal
visual_art.visual_art_medium
Ceramics and Composites
Ceramic
Composite material
0210 nano-technology
Porosity
Microstructure
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- JOURNAL OF THE KOREAN CERAMIC SOCIETY
- Accession number :
- edsair.doi.dedup.....050e7f02427bbb35e7abdd0aa91ce514