TALC AS THE PRINCIPAL BODY INGREDIENT IN VITRIFIED CERAMIC BODIES 1

ABSTRACT This paper is an attempt to explain the firing behavior of pure talc as well as talc‐clay, talc‐lime, talc‐clay lime, and some other high magnesia mixtures. Phase rule equilibrium diagrams are used. The study applies only to those mixtures where talc is present in amounts greater than 50% of the total composition.