Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-27T02:41:31.698Z Has data issue: false hasContentIssue false
  • English
  • Français

Characterization of metamict and Glassy LeadPhosphates

Published online by Cambridge University Press:  15 February 2011

A. N. Sreeram  and
L. W. Hobbs
A. N. Sreeram
Affiliation:
Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
L. W. Hobbs
Affiliation:
Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
Get access

Abstract

Single crystals of Pb2P2O7 (beam stableunder 200 kV TEM electrons to a fluence > 1027 e/M2and an ionizing dose > 1014 Gy) were rendered Metamict(amorphized) with ion-implantation (100 kV P+ ions with severalfluences between 5 × 1017/M2 - 2 × 1020/M2). Pb2P2O7and PbO-P2O5 glasses were also ion implanted atidentical fluences. Radial distribution functions for metamict and glassyphosphates generated using energy filtered electron diffraction (EFED) datacollected on 100 kV field emission STEM (VG HB-5) indicate significantalterations in the medium range order.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 321: Symposium E – Crystallization and Related Phenomena in Amorphous Materials—Ceramics, Metals, Polymers, and Semiconductors , 1993 , 25
Copyright
Copyright © Materials Research Society 1994

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1] Qin, L. C. and Hobbs, L. W., ‘Energy-Filtered Electron Diffraction From Silica Thin Films’, Mater. Res. Soc. Symp. Proc. 284 (1993) 331.Google Scholar
[2] Biscoe, J., Pincus, A. G., Smith, C. S. and Warren, B. E., J. Am. Ceram. Soc. 24 (1941) 116.Google Scholar
[3] Wignall, G. D., Rothon, R. N., Longman, G. W. and Woodward, G. R., J. Mater. Sci. 24 (1977) 1039.Google Scholar
[4] Wright, A. C., Hulme, R. A., Grimly, D. I., Sinclair, R. N., Martin, S. W., Price, D. L. and Galeener, F. L., ‘The Structure of Some Simple AMorphous Network Solids Revisited’, J. Non-Cryst. Solids 129 (1991) 213.Google Scholar
[5] Sreeram, A. N., Qin, L. C., Garrat-Reed, A. J. and Hobbs, L. W., ‘Characterization of metamict and Glassy Phosphates using Energy-Filtered Electron Diffraction’, Proc. 5 th Ann. Meeting EMSA (1992) 1230.Google Scholar
[6] Sreeram, A. N. and Hobbs, L. W., ‘Structure Characterization of metamict and Glassy Lead Phosphates’, Mater. Res. Soc. Symp. Proc. 279 1993 559.Google Scholar
[7] Sales, B. C., Ramey, J. O., McCallum, J. C. and Boatner, L. A., ‘Structural Differences Between the Glass State and Ion-Beam-AMorphized States of Lead Py-rophosphates’, J. Non-Cryst. Solids 126 (1990) 179.Google Scholar
[8] Lorch, E., ‘Neutron Diffraction by Germania, Silica and Radiation-Damaged Silica Glasses’, J. Phys. C 2 1969 229.Google Scholar