Characterization of Atomic Structures of Nanosized Intermetallic Compounds Using Electron Diffraction Methods

Louisa Meshi, Shmuel Samuha

Research output: Contribution to journalReview articlepeer-review

3 Scopus citations

Abstract

In metallurgy, many intermetallic compounds crystallize as nanosized particles in metallic matrices. These particles influence dramatically the physical properties of engineering materials such as alloys and steels. Since properties and crystal structure are intimately linked, characterization of the atomic model of these intermetallides is crucial for the development of new alloys. However, this structural information usually cannot be attained using traditional X-ray diffraction methods, limited by the small volume and size of the precipitates. In these cases, electron diffraction (ED) is the most suitable method. In the last few decades, ED has experienced a tremendous leap forward. Many structures, including intermetallides, are solved using these methods. The class of intermetallides should be discussed independently since these phases do not comprise regular polyhedrals; moreover, the interatomic distances and angles vary drastically even in the same compositional system. These facts point to difficulties that have to be overcome during the solution path. Furthermore, intermetallic compounds can be of high complexity—possessing hundreds of atoms in the unit cell. Here, this topic is expanded with an emphasis on novel developments in the field.

Original languageEnglish
Article number1706704
JournalAdvanced Materials
Volume30
Issue number41
DOIs
StatePublished - 11 Oct 2018

Keywords

  • crystal structure
  • electron diffraction
  • intermetallics
  • structure solution
  • transmission electron microscopy

ASJC Scopus subject areas

  • Materials Science (all)
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'Characterization of Atomic Structures of Nanosized Intermetallic Compounds Using Electron Diffraction Methods'. Together they form a unique fingerprint.

Cite this