Abstract
It has been found that various refractory oxides can be crystallized from molten PbO–PbF2 and Bi2O3–BiF3 solutions. The PbO–PbF2 solvent has proved successful for the growth of high alumina compounds including aluminum garnets, rare‐earth orthoaluminates, spinels, magnetoplumbite‐type aluminates, aluminum oxide, and the divalent oxides BeO and MnO. The Bi2O3–BiF3 system has proven successful for the growth of the ferrite GaFeO3. The stability ranges of these various compounds is discussed in addition to problems of doping and attainment of large single crystals.

This publication has 5 references indexed in Scilit: