Phase relations and crystallization of glass in the system PbO-GeO2

Abstract

Thermal properties and chemical compositions of glasses suitable for crystallization of ferro-electric Pb5Ge3O11 are described. The crystallization of lead germanate glass was investigated by DTA and X-ray diffraction. In the range from 62 to 62.5 of PbO in mole per cent, Pb5Ge3O11 was obtained as a single phase after a heat treatment. In the chemical composition around 5PbO·3GeO2 in the binary system of PbO-GeO2, Pb5Ge3O11 and two new phases of Pb3Ge2O7 and Pb3GeO5 were found to exist. The crystal structure of Pb3Ge2O7 had a hexagonal symmetry witha=10.16 Å andc=19.37 Å, and Pb3GeO5 was classified into orthorhombic system witha=4.85 Å,b=15.52 Å and c=11.77 Å.

This is a preview of subscription content, access via your institution.

References

  1. 1.

    S. D. Stookey,Corning Research (1961) 178.

  2. 2.

    K. Sugii, H. Iwasaki andS. Miyazawa,Mat. Res. Bull. 6 (1971) 503.

    CAS  Article  Google Scholar 

  3. 3.

    H. Iwasaki,Appl. Phys. Japan 41 (1972) 415.

    CAS  Google Scholar 

  4. 4.

    L. Merker andH. Wondratschek,Glastech. Ber. 30 (1957) 471.

    CAS  Google Scholar 

  5. 5.

    E. I. Speranskaya,Izv. Akad. Nauk SSSR, Otdel. Khim. Nauk (1959) 162.

  6. 6.

    B. Phillips andM. G. Scroger,J. Amer. Ceram. Soc. 48 (1965) 398.

    CAS  Google Scholar 

  7. 7.

    D. Gouju, J. Fournier andR. Kohlmuller,C. R. Acad. Sc. Paris, Ser. C 266 (1968) 1063.

    CAS  Google Scholar 

  8. 8.

    D. Bordeaux,Bull. Soc. Fr. Mineral. Cristallogr. 92 (1969) 383.

    CAS  Google Scholar 

  9. 9.

    M. Mydlar, H. Nowotny andJ. Seifert,Monatsh. Chem. 100 (1969) 191.

    CAS  Article  Google Scholar 

  10. 10.

    V. N. Morozov andN. N. Sharonova,Opt. Spektrosk. 26 (1969) 467.

    CAS  Google Scholar 

  11. 11.

    V. N. Morozov,Zh. Prikl. Spektrosk. 11 (1969) 986.

    CAS  Google Scholar 

  12. 12.

    G. Eulenberger, A. Wittmann andH. Nowotny,Monatsh. Chem. 93 (1962) 1046.

    CAS  Article  Google Scholar 

Download references

Author information

Affiliations

Authors

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Hasegawa, H., Shimada, M. & Koizumi, M. Phase relations and crystallization of glass in the system PbO-GeO2 . J Mater Sci 8, 1725–1730 (1973). https://doi.org/10.1007/BF02403523

Download citation

Keywords

  • Polymer
  • Crystallization
  • Crystal Structure
  • Heat Treatment
  • Hexagonal