Chemical analysis of precipitates in metallic alloys using coincidence Doppler broadening of positron annihilation radiation

Y. Nagai, Z. Tang, M. Hasegawa

Research output: Contribution to journalConference articlepeer-review

28 Citations (Scopus)

Abstract

Two-detector coincidence Doppler broadening (CDB) method of positron annihilation radiation is applied to the study of precipitates in metals. As the first step, the CDB spectra for many kinds of elements are measured to obtain the 'fingerprint' of each element for the chemical analysis of the precipitates in metals. Utilizing the fingerprint of Cu, we made chemical analysis of nano-particles formed in the initial stage of thermal aging in a Fe-Cu alloy, and found that the particles are consisting of Cu only and free from vacancies, which demonstrates the usefulness of this method in the study of the precipitates. Copyright (C) 2000 Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)737-742
Number of pages6
JournalRadiation Physics and Chemistry
Volume58
Issue number5-6
DOIs
Publication statusPublished - 2000 Jun 1
Event6th International Workshop on Positron and Positronium Chemistry (PPC-6) - Tsukuba, Jpn
Duration: 1999 Jun 71999 Jun 11

ASJC Scopus subject areas

  • Radiation

Fingerprint Dive into the research topics of 'Chemical analysis of precipitates in metallic alloys using coincidence Doppler broadening of positron annihilation radiation'. Together they form a unique fingerprint.

Cite this