# Studying Internal Compositions of Binary Alloy Pd-Rh Nanoparticles Using Bragg Coherent Diffraction Imaging

## TL;DR

This paper demonstrates the use of Bragg coherent diffraction imaging to visualize and analyze the internal compositional distribution and strain in Pd-Rh alloy nanoparticles at thermal equilibrium.

## Contribution

It introduces a method to directly relate lattice strain to compositional deviations in alloy nanoparticles using BCDI.

## Key findings

- Successful imaging of internal composition in Pd-Rh nanoparticles.
- Established the correlation between lattice strain and alloy composition.
- Provided experimental validation of the BCDI technique for alloy analysis.

## Abstract

Bragg coherent diffraction imaging (BCDI), the well-established technique for imaging internal strain of nanoparticles, was used to image the internal compositional distribution of binary alloys in thermal equilibrium. The images experimentally obtained for Pd-Rh alloy nanoparticles are presented and discussed. The direct correspondence between the lattice strain and the compositional deviation is discussed in the derivation of the BCDI displacement field aided by illustrations.

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Source: https://tomesphere.com/paper/1906.06487