| Numéro |
J. Phys. Colloques
Volume 49, Numéro C6, Novembre 1988
35th International Field Emission Symposium / 35éme Symposium International d'Emission de Champ
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| Page(s) | C6-145 - C6-150 | |
| DOI | https://doi.org/10.1051/jphyscol:1988624 | |
35th International Field Emission Symposium / 35éme Symposium International d'Emission de Champ
J. Phys. Colloques 49 (1988) C6-145-C6-150
DOI: 10.1051/jphyscol:1988624
A.F. Ioffe Physical-Technical Institute, Academy of Sciences of the U.S.S.R., Leningrad 194021, Politekhnicheskaya 26, U.S.S.R.
J. Phys. Colloques 49 (1988) C6-145-C6-150
DOI: 10.1051/jphyscol:1988624
VACUUM METAL CONDENSATION STUDIED BY FIELD EMISSION MICROSCOPY
O.L. GOLUBEVA.F. Ioffe Physical-Technical Institute, Academy of Sciences of the U.S.S.R., Leningrad 194021, Politekhnicheskaya 26, U.S.S.R.
Abstract
Vacuum condensation of host material on the W, Ta, Mo and Re tips was studied by field emission microscopy. The temperature of the tips T varied over the range 77 ≤ T ≤ 2000 K, the number of monoatomic layers of condensate n changed from 1 to 500. The same stages of the form changing of the surface were observed for all metals: these were a disordered amorphous condensate, replication, isolated crystal outgrowths and condensation build up. The interval of T and n, in which a certain stage was observed, varied depending on the kind of the metal and the structure of the plane. The condensation may produce nonequilibrium planes, absent on the initial annealing form, for example the planes {112} of Ta.