Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-26T11:09:56.675Z Has data issue: false hasContentIssue false
  • English
  • Français

Three-dimensional Investigation of Ceramic/Metal Heterophase Interfaces by Atom-probe Microscopy

Published online by Cambridge University Press:  07 August 2002

Järg Rüsing ,
Jason T. Sebastian ,
Olof C. Hellman  and
David N. Seidman
Järg Rüsing
Affiliation:
Department of Materials Science and Engineering, Northwestern University, 2225 N. Campus Drive, Evanston, IL 60208-3108
Jason T. Sebastian
Affiliation:
Department of Materials Science and Engineering, Northwestern University, 2225 N. Campus Drive, Evanston, IL 60208-3108
Olof C. Hellman
Affiliation:
Department of Materials Science and Engineering, Northwestern University, 2225 N. Campus Drive, Evanston, IL 60208-3108
David N. Seidman*
Affiliation:
Department of Materials Science and Engineering, Northwestern University, 2225 N. Campus Drive, Evanston, IL 60208-3108
*
*Corresponding author
Get access

Abstract

The results of a three-dimensional atom probe (3DAP) analysis, on a subnanometer scale, of a ceramic/metal heterophase interface, MgO/Cu, are presented. Segregation of Ag, from the Cu (Ag) matrix, at MgO/Cu interfaces is investigated and the Gibbsian interfacial excess of silver is determined; the range is 2.33 × 1018 to 5.81 × 1018 m−2. Also, silver segregation at the same MgO/Cu interfaces is analyzed employing a new approach that utilizes a proximity histogram or proxigram.

Keywords

heterophase interfacesMgO/Cuthree-dimensional atom-probe microscopyinterfacial segregationsilverproxigramceramic/metal interfaces
Type
Research Article
Information
Microscopy and Microanalysis , Volume 6 , Issue 5 , September 2000 , pp. 445 - 451
Copyright
Copyright © Microscopy Society of America 2000

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)