PHASE-EQUILIBRIA IN THE SYSTEM CDO-ZNO-B2O3 AT 850-DEGREES-C

Phase equilibria in the system CdO-ZnO-B2O3 were investigated at 850-d egrees-C using quenching and X-ray powder diffraction techniques. The binary phases reported previously were confirmed. The ternary phase di agram was solved and a new phase postulated: 3CdO.3ZnO.2B2O3. X-ray po wder data are given for this. Solid solution effects were investigated for the primary and binary phases by comparison of patterns; none wer e detected. These results are compared with those of a previous determ ination and the differences discussed.