Na_2O-CaO-P_2O_5-SiO_2系ガラス中に晶出した(Na,Ca)(P,Si)O_3の構造の研究

概要

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Recent studies on the crystallization of a glass in the system of Na_2O-CaO-P_2O_5-SiO_2 have revealed an unknown phase. The lattice parameters were calculated from the XRD analysis ; they were in agreement with the result of TEM diffraction patterns. From the evidence of TEM, EPMA XRD and SEM analysis the phase have been identified as (Na_<0.11>, Ca_<0.89>) (P_<0.11>, Si_<0.89>) O_3 with a P1^^~ structure and have an isomorphic with CaSiO_3.Transition phase appeared in crystallization process was to be described ; and substitutional conditions between the atoms of unknown phase were also discussed in the article.
1990-01-01