Article Dans Une Revue Materials Science and Engineering: A Année : 1991

Phase transition induced by ball - milling in Germanium

Résumé

Abstract The paper reports on the crystal-to-amorphous phase transition induced by ball milling in a pure element: a germanium powder. Scanning electron micrographs show some spherical particles with smooth shapes. The container contamination, which was determined by chemical energy dispersive X-ray/scanning electron microscopy microanalyses, was found to be less than or equal to 0.5 at.% of iron (no significant chromium contamination could be detected). The analyses of the X-ray patterns reveal the coexistence of germanium microcrystallites and an amorphous phase. Some particles of about 100–200 nm in diameter exhibit a pure amorphous structure (bright field images and selected area diffraction patterns). The influence of the ball milling conditions on the dynamic end-product between the crystalline and the amorphous phases has been studied.

Dates et versions

hal-00118190 , version 1 (19-11-2025)

Identifiants

Citer

Eric Gaffet. Phase transition induced by ball - milling in Germanium. Materials Science and Engineering: A, 1991, 136, pp.161 - 169. ⟨10.1016/0921-5093(91)90451-R⟩. ⟨hal-00118190⟩
58 Consultations
0 Téléchargements

Altmetric

Partager

  • More