X-Ray Diffraction, frequently abbreviated as XRD analysis, is a non-destructive test method used to analyze the structure of materials.
The XRD technique, by way of the study of the crystal structure, can be used to identify the crystalline phases present in a material and thereby reveal chemical composition information. Identification of phases is achieved by comparison of the acquired data to that in reference databases. The XRD technique can be utilized with minerals, polymers, corrosion products, and metallic samples. In most cases the samples analyzed at Element are analyzed by powder diffraction using samples prepared as finely ground powders.
XRD is performed by directing an x-ray beam at a sample and measuring the scattered intensity as a function of the outgoing direction. Once the beam is separated, the scatter, also called a diffraction pattern, indicates the sample’s crystal structure. The method of Rietveld refinement is used to determine the crystal structure which most likely provided the observed pattern.
Element is ISO 17025 certified to perform XRD on multiple material types. Our Engaged Experts can review a variety of specifications and procedures, and help determine how x-ray diffraction can make your project a success. Contact us today to learn more about Element’s non-destructive and chemical analysis services.
Measuring Residual Stress using XRD
For over twenty years, Element has performed retained stress measurements regularly and has gained wide experience in this field. Element residual stress measurement experts have developed many innovative procedures for the benefits of our clients, including the RSM and RIGAKU stress analyzer.
Residual or retained stresses are dangerous in construction materials because they contribute to external stresses. This can result in exceeding of the yielding point of the material, which the external stresses alone may not have done.
For over twenty years, Element has performed retained stress measurements regularly and has gained wide experience in this field. Element residual stress measurement experts have developed many innovative procedures for the benefits of our clients, including the RSM, RIGAKU stress analyzer. This methodology utilizes XRD analysis to measure residual stress.
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