Notes on the System B2O3-SiO2-P2O5. Part II. The Ternary System
JSGT 1955 V39 T121-T127
The combination B2O3–SiO2–P2O3 does not comprise a true ternary system at atmospheric pressure and at temperatures below 1400°, owing to the tenacious manner in which fusions retain H2O. Neglecting the presence of H2O, it appears that BPO4 is a primary phase over a considerable area of the triangle B2O3–BPO4–SiO2. The results of a few experiments with SiP2O7 are reported.
W. J. Englert & F. A. Hummel
