Document Type

Article

Publication Date

12-1-1993

Journal or Book Title

Physical Review B

Volume

48

Issue

21

First Page

15708

Last Page

15711

DOI

10.1103/PhysRevB.48.15708

Abstract

Neutron-scattering techniques have been used to study the premartensitic state of a family of Cu-Al-Be alloys, which transform from the bcc phase to an 18R martensitic structure. We find that the phonon modes of the TA2[110] branch have very low energies with anomalous temperature dependence. A slight anomaly at q=2/3 was observed; this anomaly, however, does not change significantly with temperature. No elastic peaks, related to the martensite structure, were found in the premartensitic state of these alloys. The results are compared with measurements, performed under the same instrumental conditions, on two Cu-Al-Ni and a Cu-Zn-Al martensitic alloy.

Comments

This article is from Physical Review B 48 (1993): 15708–15711, doi:10.1103/PhysRevB.48.15708.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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