High Temperature Porous and Dense Ceramic from Latvian Quaternary Clay

Latvijas derīgie izrakteņi, jaunas tehnoloģijas, materiāli un produkti: zinātnisko rakstu krājums 2014
Māris Rundāns, Ingunda Šperberga, Gaida Maruta Sedmale

Ternary system MgO-Al2O3-SiO2 contains many valuable crystalline phases such as spinel and cordierite. Extremely low CTE (1.5•10-6 K-1) allows them to be used in conjunction with other thermally demanding materials. In this work the use of Latvian clay for preparation of both dense and porous cordierite ceramics was studied. It was determined that the use of illite clay of 1/3 of total mass can be used to prepare both dense (strength ≈ 400 MPa) and extremely porous (porosity ≈ 96%) materials.

Keywords
cordierite, spinel, sapphirine, mechanical strength

Rundāns, M., Šperberga, I., Sedmale, G. High Temperature Porous and Dense Ceramic from Latvian Quaternary Clay. In: Latvijas derīgie izrakteņi, jaunas tehnoloģijas, materiāli un produkti: zinātnisko rakstu krājums. Rīga: RTU izdevniecība, 2014, pp.81-87. ISBN 978-9934-10-552-4.

Publication language
Latvian (lv)