In a recent study, laser-induced breakdown spectroscopy (LIBS) was used, for the first time, to quantitatively analyze powder materials used in additive technologies.
In a recent study (1), laser-induced breakdown spectroscopy (LIBS) was used, for the first time, to quantitatively analyze powder materials used in additive technologies. Researchers found that using LIBS to map loose metal powder attached to double-sided adhesive tape provided high reproducibility of measurements even for powder mixtures with a large range of particle densities (tungsten carbide particles in nickel alloy powder).
Calibration curve construction and accuracy estimation by the leave-one-out cross-validation procedure was used to estimate LIBS analytical capabilities for tungsten and carbon analysis. A LIBS and X-ray fluorescence (XRF) spectroscopy comparison showed better results for LIBS analysis. Improved analysis accuracy and the capability to quantify light elements (for example, carbon) demonstrated the suitability of LIBS as a technique for express on-site multielement analysis of powder materials used in additive technologies.
Reference
V.N. Lednev, P.A. Sdvizhenskii, M. Ya. Grishin, M.A. Davidov, A. Ya. Stavertiy, R.S. Tretyakov, M.V. Taksanc, and S.M. Pershin, arXiv.org (2018). https://arxiv.org/pdf/1802.00236.pdf
An Interview with AES Mid-Career Award Recipient Jason Dwyer
July 25th 2024Jason Dwyer of the University of Rhode Island has been named the recipient of the American Electrophoresis Society’s Mid-Career Award, which honors exceptional contributions to the field of electrophoresis, microfluidics, and related areas by an individual who is currently in the middle of their career.
Glucose's Impact on Brain Cancer Cells Unveiled Through Raman Imaging
July 25th 2024Researchers have used Raman spectroscopy and chemometric methods to reveal how glucose affects normal and cancerous brain cell metabolism. Their findings highlight specific biomarkers that can distinguish metabolic changes, potentially aiding in cancer research and treatment.