SINTERING OF CHROMIC OXIDE REFRACTORIES AT LOW PARTIAL PRESSURE OF OXYGEN

摘要

Chromic oxide with respect to the sintering differs from other refractory oxides by full absence of the sintering (shrinkage) in oxidizing conditions and anomalous high sintering at low values of PO_2. This is due by interdependence between the nature of a filling up of anion and cation sublattices and a value of an evaporability of chromic oxide at different values of PO_2. Carried out research of Cr_2O_3 sinterability dependency on the partial pressure of oxygen is fundamental in the technology development of chromic oxide refractories.