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Publikācija: High-Temperature Ceramic Materials

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Nosaukums oriģinālvalodā High-Temperature Ceramic Materials
Pētniecības nozare 2. Inženierzinātnes un tehnoloģijas
Pētniecības apakšnozare 2.5. Materiālzinātne
Autori Gaida Maruta Sedmale
Ingunda Šperberga
Aleksejs Hmeļovs
Atslēgas vārdi Mullite-ZrO2, ceramic, ,conventional processing, pressure strength
Anotācija The high-temperature ceramics – the leaders in the field of high - temperature materials in a variety of ceramic composites such as aluminium oxides, zirconia oxides, mullite, cordierite, forsterite, enstatite etc. This product includes ceramic pyrometry tubes, swich-fuse gear insulators,electrical heater&thermostat parts, ceramic wear-resistant lining tiles, refractory coatings, ceramic milling media. The product is produced by conventional ceramic processing including preparation of starting composition by ball-milled process in planetary ball mill, as well as by using of hydrothermal procedure to obtain the starting powders with the wide scale (50 to 1000nm) particles, shaping of intended product form from powders by pressing/extrusion and high- temperature sintering in temperature ranged from 1200 to 14000C. A different feature of proposed ceramic product is the using of small amount of illite clay/ and or dolomite to starting composition to lower the sintering temperature. The main characteristics of high-temperature mullite-corundum- zirconia (tetragonal) ceramics includes the high degree of densification (up to 99%) , bulk density 2.90 -3.25g/cm3, bending strength 95-100 MPa and pressure strenth up to 300 MPa
Atsauce Sedmale, G., Šperberga, I., Hmeļovs, A. High-Temperature Ceramic Materials. Materiālzinātne un lietišķā ķīmija . Nr.1, 2008, 18.-19.lpp. ISSN 1407-7353.
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