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Electronic diffraction study of the chlorination of nickel; Etude par diffraction electronique de la chloruration du nickel

Abstract

A study has been made of the chlorination of the (100), (110) and (111) crystal faces of nickel using high energy electron diffraction and electron microscopy. Two methods have been used: bombardment with chlorine ions having an energy of between 10 and 30 keV, and direct chlorination in a diffractor at pressures of about 10{sup -4} torr. It has thus been possible to show the very special properties of nickel chloride (CdBr{sub 2} type, space group R 3-bar m) which is always formed along the (0001) plane, whatever the orientation of the substrate. It has also been possible to attain the metal-halide interface and to show the existence of two-dimensional chemisorbed films which are ordered or disordered according to the crystal orientation. (author) [French] La chloruration des faces (100) (110) et (111) du nickel a ete etudiee par diffraction des electrons de haute energie et par microscopie electronique. Deux methodes ont ete utilisees: le bombardement avec des ions chlore ayant une energie comprise entre 10 et 30 keV, et la chloruration directe dans un diffracteur pour des pressions de l'ordre de 10{sup -4} torr. Ainsi ont ete mises en evidence les proprietes tres particulieres du chlorure de nickel (type CdBr{sub  More>>
Authors:
Vigner, D [1] 
  1. Commissariat a l'Energie Atomique, Saclay (France). Centre d'Etudes Nucleaires
Publication Date:
Jul 01, 1969
Product Type:
Technical Report
Report Number:
CEA-R-3847
Resource Relation:
Other Information: 11 refs; PBD: 1969
Subject:
36 MATERIALS SCIENCE; CHEMICAL VAPOR DEPOSITION; CHEMISORPTION; CHLORINATION; CHLORINE IONS; COPPER CHLORIDES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; ELECTRON DIFFRACTION; ELECTRON MICROSCOPY; EPITAXY; INTERFACES; ION IMPLANTATION; NICKEL CHLORIDES; TEMPERATURE DEPENDENCE; ZINC CHLORIDES
OSTI ID:
20552680
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR04R3847007937
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
73 pages
Announcement Date:

Citation Formats

Vigner, D. Electronic diffraction study of the chlorination of nickel; Etude par diffraction electronique de la chloruration du nickel. France: N. p., 1969. Web.
Vigner, D. Electronic diffraction study of the chlorination of nickel; Etude par diffraction electronique de la chloruration du nickel. France.
Vigner, D. 1969. "Electronic diffraction study of the chlorination of nickel; Etude par diffraction electronique de la chloruration du nickel." France.
@misc{etde_20552680,
title = {Electronic diffraction study of the chlorination of nickel; Etude par diffraction electronique de la chloruration du nickel}
author = {Vigner, D}
abstractNote = {A study has been made of the chlorination of the (100), (110) and (111) crystal faces of nickel using high energy electron diffraction and electron microscopy. Two methods have been used: bombardment with chlorine ions having an energy of between 10 and 30 keV, and direct chlorination in a diffractor at pressures of about 10{sup -4} torr. It has thus been possible to show the very special properties of nickel chloride (CdBr{sub 2} type, space group R 3-bar m) which is always formed along the (0001) plane, whatever the orientation of the substrate. It has also been possible to attain the metal-halide interface and to show the existence of two-dimensional chemisorbed films which are ordered or disordered according to the crystal orientation. (author) [French] La chloruration des faces (100) (110) et (111) du nickel a ete etudiee par diffraction des electrons de haute energie et par microscopie electronique. Deux methodes ont ete utilisees: le bombardement avec des ions chlore ayant une energie comprise entre 10 et 30 keV, et la chloruration directe dans un diffracteur pour des pressions de l'ordre de 10{sup -4} torr. Ainsi ont ete mises en evidence les proprietes tres particulieres du chlorure de nickel (type CdBr{sub 2}, groupe spatial R 3-bar m) qui s'accole toujours suivant le plan (0001), quelle que soit l'orientation du substrat. Il a ete egalement possible d'atteindre l'interface metal-halogenure et de montrer l'existence de couches chimisorbees bidimensionnelles, ordonnees ou desordonnees suivant l'orientation cristalline etudiee. (auteur)}
place = {France}
year = {1969}
month = {Jul}
}