LOW-EXPANDING CERAMICS FOR THERMAL AND ELECTRICAL INSULATION

Description of the project: Low-expanding ceramics for thermal and electrical insulation are used as structural elements of thermal units (flame and electric furnaces, induction installations, etc.).

Indicators of the properties of technical ceramicsDeveloped material
TCLE, α ∙ 10-6 К-12.52-3.61
Water absorption,%8.2-21.6
Open porosity,%19–35
Flexural strength, MPa20-35
Heat resistance, number of heat cycles (800 ° С-water)60-150
Specific volumetric electrical resistance (at 100 ° С), Ohm m1010-1012

Benefits: 

The ability to control the micro- and macrostructure of the material to ensure high performance for various modes of thermal cycling (smooth, sharp, shock) and the manufacture of products of any configuration and shape. The low cost of products is achieved due to the use of available mineral raw materials.