Alumina ceramics and steatites have primarily
been used in the furnace industry for electrical insulators with advantageous
structural properties at elevated temperatures. Steatites are better heat
insulators but do not have nearly the strength or the suitability for
high-temperature applications that alumina formulations have.
Check out the May 2017 issue of Industrial Heating, which includes features on Ford's $1.2 billion investment in three Michigan facilities, a roundup of heat-treat process-verification articles, and much more.