ELECTRON BEAM SENSITIVITY AND STRUCTURE OF THE GLASSY PHASE OF CERAMICS
The electron beam sensitivity of glassy ceramics was reviewed. It was shown that the glassy phase resulting from the segregation of additives such as CaO or MgO at the grain boundaries was highly sensitive to the electron beam. We have reported elsewhere that the electron damage kinetics corresponds to an ionization process (Laval, Westmacott, 1979). This ionization process was discussed in terms of chemical bondings and ionic states, and by referring to the soda-glass structure. From these considerations new insights into the structure of the glassy phase were obtained. From the nature of the ionization effects it is possible to postulate which ion will lead to the damage and therefore to know the structure and the composition of the glassy phase on a nanometric scale. Thus the electron beam sensitivity of glassy ceramic enables a very thin intergranular glassy phase to be characterized and is of great value in determining the structure of the grain boundaries and of metal-oxide or glass-ceramic interfaces.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- Materials Sciences Division
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 1030597
- Report Number(s):
- LBL-10476; TRN: US201124%%344
- Journal Information:
- Institute of Physics Conference Series No. 52, Chapter 5, 1980, on Electron Microscopy and Analysis, Journal Name: Institute of Physics Conference Series No. 52, Chapter 5, 1980, on Electron Microscopy and Analysis
- Country of Publication:
- United States
- Language:
- English
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