Una tecnica para obtener la fase icosahedrica en peliculas delgadas multicapas de AICr

Authors

  • D. Chaverri Departamento de Física, Universidad Nacional, Costa Rica
  • R. J. Moya Departamento de Física, Universidad Nacional, Costa Rica
  • J. R. Magaña Escuela de Física, Universidad de Costa Rica, Costa Rica
  • A. Sáenz Escuela de Física, Universidad de Costa Rica, Costa Rica

Keywords:

tecnica, icosahedrica, peliculas, multicapas

Abstract

A method used to produce thin films multilayers of AlCr in vacuum system by electron-beam is discribed. The samples with icosahedral phase undergoes in situ annealing when layers of evaporated material condense on hot substrates (approximately 360°C). Diffraction patterns from Transmission Electron Microscopy were used to identify the icosahedral phase. Samples with phase are compared with others grown on substrates at 100°C.

 

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Published

1993-01-01

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Section

Original scientific papers (evaluated by academic peers)

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