Related Experiment Video
Updated: Jan 20, 2026
08:14
Single Crystal and Powder X-ray Diffraction
Published on: April 30, 2023
108.4K
Anomalous X-ray diffraction from ω nanoparticles in β-Ti(Mo) single crystals
Jana Šmilauerová1, Petr Harcuba1, Miroslav Cieslar1
1Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Prague, Czech Republic.
Acta Crystallographica. Section A, Foundations and Advances
|September 3, 2019
Summary
Anomalous X-ray diffraction reveals molybdenum distribution in Ti-15Mo alloy. Molybdenum is rejected from omega particles, forming a surrounding cloud and causing matrix deformation.
Area of Science:
- Materials Science
- Solid State Physics
- Crystallography
Background:
- Metastable beta titanium alloys are crucial engineering materials.
- Omega (ω) particles influence the mechanical properties of titanium alloys.
- Understanding solute distribution, like molybdenum (Mo), is key to alloy performance.
Purpose of the Study:
- To investigate the spatial distribution of molybdenum (Mo) in a Ti-15Mo alloy.
- To analyze the influence of ω particles on Mo distribution using Anomalous X-ray Diffraction (AXRD).
- To characterize the diffuse scattering patterns and their energy dependence near the Mo K absorption edge.
Main Methods:
- Anomalous X-ray Diffraction (AXRD) experiments were conducted around the Mo K edge (20.0 keV).
- Diffuse scattering patterns near the (006)β diffraction maximum were analyzed.
- Numerical simulations of diffuse scattering and energy dependencies were performed.
Main Results:
- Observed variations in diffracted intensity with incident photon energy near the absorption edge.
- Confirmed Mo rejection from ω particles during their growth.
- Identified elastic deformation of the β matrix due to ω particles and a surrounding Mo-rich cloud.
Conclusions:
- AXRD is effective for mapping solute distribution in alloys.
- The presence of ω particles induces local matrix strain and Mo segregation.
- The findings provide insights into the phase evolution and mechanical behavior of Ti-15Mo alloys.
Related Concept Videos
08:14Single Crystal and Powder X-ray Diffraction
108.4K
Source: Tamara M. Powers, Department of Chemistry, Texas A&M University
X-ray crystallography is a technique that uses X-rays to study the structure of molecules. X-ray diffraction (XRD) experiments are routinely carried out with either single-crystal or powdered samples.
Single-crystal XRD:
Single-crystal XRD allows for absolute structure determination. With single-crystal XRD data, the exact atomic positions can be observed, and thus bond lengths and angles can be determined. This...
X-ray crystallography is a technique that uses X-rays to study the structure of molecules. X-ray diffraction (XRD) experiments are routinely carried out with either single-crystal or powdered samples.
Single-crystal XRD:
Single-crystal XRD allows for absolute structure determination. With single-crystal XRD data, the exact atomic positions can be observed, and thus bond lengths and angles can be determined. This...
108.4K
08:00Growing Crystals for X-ray Diffraction Analysis
33.5K
Source: Laboratory of Dr. Jimmy Franco - Merrimack College
X-ray crystallography is a method commonly used to determine the spatial arrangement of atoms in a crystalline solid, which allows for the determination of the three-dimensional shape of a molecule or complex. Determining the three-dimensional structure of a compound is of particular importance, since a compound's structure and function are intimately related. Information about a compound's structure is often used to explain its...
X-ray crystallography is a method commonly used to determine the spatial arrangement of atoms in a crystalline solid, which allows for the determination of the three-dimensional shape of a molecule or complex. Determining the three-dimensional structure of a compound is of particular importance, since a compound's structure and function are intimately related. Information about a compound's structure is often used to explain its...
33.5K
09:31X-ray Diffraction
92.9K
Source: Faisal Alamgir, School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA
X-ray diffraction (XRD) is a technique used in materials science for determining the atomic and molecular structure of a material. This is done by irradiating a sample of the material with incident X-rays and then measuring the intensities and scattering angles of the X-rays that are scattered by the material. The intensity of the scattered X-rays are plotted as a function of the...
X-ray diffraction (XRD) is a technique used in materials science for determining the atomic and molecular structure of a material. This is done by irradiating a sample of the material with incident X-rays and then measuring the intensities and scattering angles of the X-rays that are scattered by the material. The intensity of the scattered X-rays are plotted as a function of the...
92.9K
11:32High Pressure Single Crystal Diffraction at PX^2
22.1K
In this report, we describe detailed procedures for carrying out single crystal X-ray diffraction experiments with a diamond anvil cell at the GSECARS 13-BM-C beamline at the Advanced Photon Source. ATREX and RSV programs are used to analyze the...
22.1K
12:38Crystallization of Proteins on Chip by Microdialysis for In Situ X-ray Diffraction Studies
7.0K
This paper details the fabrication protocol of microfluidic chips developed for on-chip protein crystallization with the dialysis method and in situ X-ray diffraction experiments. The microfabrication process makes it possible to integrate a semipermeable regenerated cellulose dialysis membrane with any molecular weight cut-off, between two layers of the...
7.0K
07:42On-Chip Crystallization and Large-Scale Serial Diffraction at Room Temperature
2.3K
This contribution describes how to set up protein crystallization on crystal-on-crystal devices and how to perform automated serial data collection at room temperature using the on-chip crystallization...
2.3K