Hostname: page-component-7479d7b7d-jwnkl Total loading time: 0 Render date: 2024-07-13T09:33:55.421Z Has data issue: false hasContentIssue false

Some Insights Into the Process of E-beam Generation of Metal Nanoparticles From Binary Metal Hydride and Azide Precursors

Published online by Cambridge University Press:  21 February 2011

Patrick J. Herley
Affiliation:
Department of Materials Science and Engineering, State University of New York, Stony Brook, N. Y. 11794-2275, USA.
William Jones
Affiliation:
Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK.
Get access

Abstract

Exposure of micron-sized particles of inorganic metal hydrides and azides to an intense electron beam within a transmission electron microscope results in melting followed by accelerated decomposition. The energy density localized in the specimen is considerable - arguably from one of the most intense energy deposition sources available. The induced effects have been evaluated using electron beam theory and it is concluded that, to a first approximation, the phenomena are attributable to extremely rapid heating. Criteria for the use of this technique to other possible systems are identified and future experiments applying this unique technique to other materials systems are proposed.

Type
Research Article
Copyright
Copyright © Materials Research Society 1995

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 Herley, P. J. and Jones, W., Zeit. Physik. Chem. Neue Folge 164,1151 (1989).Google Scholar
2 Herley, P. J., Fitzsimons, N .P. and Jones, W., M. R. S. Proceedings, 254, 223 (1992).Google Scholar
3 Herley, P. J. and Jones, W., J. Chem. Soc, Faraday Trans., 88, 3213 (1992).Google Scholar
4 Herley, P. J. and Jones, W., Zeit, fur Physik D, 26, S159 (1993).Google Scholar
5 Herley, P. J. and Jones, W., M.R.S. Proceedings, 296, 87 (1993).Google Scholar
6 Herley, P. J. and Jones, W., Nanostructured Materials, 2, 553 (1993).Google Scholar
7 Herley, P. J. and Jones, W., J. Materials Science, 28,1874 (1993).Google Scholar
8 Hobbs, L. W., Introduction to Analytical Electron Microscopy, Ed. Hren, J. J., Goldstein, J. I Joy, D. C., Plenum Press, N.Y. 1979, Chap. 17.Google Scholar
9 K = 0.1 for MgCO3, an inorganic compound similar to the azides, Handbook of Chemistry and Physics, CRC Press (1962).Google Scholar
10 Buffat, Ph. and Borel, J-P., Phys. Rev. A, 13, 2287 (1976).Google Scholar
11 Kim, Y. K, Lin, H-M and Kelly, T. F., Acta Metall., 37, 247 (1989).Google Scholar
12 Fitzsimons, N. P., Jones, W. and Herley, P. J., J. Chem. Soc, Faraday Trans. -in press (1994).Google Scholar
13 Greer, A. L., Nato A.S.I, on Mechanical Behaviour of Materials having Ultra-fine Microstructures, (1992).Google Scholar
14 Allpress, J. G. and Sanders, J. V., Surf. Sci., 7,1 (1986).Google Scholar
15 Iijima, S. and Ichihashi, T., Phys. Rev. Lett., 56, 616 (1988).Google Scholar
16 Ajayan, P. M. and Marks, L. D., Phys. Rev. Lett., 60, 585 (1988).Google Scholar