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Meso-scale defect evaluation of selective laser melting using spatially resolved acoustic spectroscopy (2017)
Journal Article
Hirsch, M., Catchpole-Smith, S., Patel, R., Marrow, P., Li, W., Tuck, C., …Clare, A. T. (2017). Meso-scale defect evaluation of selective laser melting using spatially resolved acoustic spectroscopy. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 473(2205), https://doi.org/10.1098/rspa.2017.0194

Developments in additive manufacturing technology are serving to expand the potential applications. Critical developments are required in the supporting areas of measurement and in process inspection to achieve this. CM247LC is a nickel superalloy th... Read More about Meso-scale defect evaluation of selective laser melting using spatially resolved acoustic spectroscopy.

Orientation imaging of macro-sized polysilicon grains on wafers using spatially resolved acoustic spectroscopy (2017)
Journal Article
Patel, R., Li, W., Smith, R. J., Sharples, S. D., & Clark, M. (2017). Orientation imaging of macro-sized polysilicon grains on wafers using spatially resolved acoustic spectroscopy. Scripta Materialia, 140, 67-70. https://doi.org/10.1016/j.scriptamat.2017.07.003

Due to its economical production process polysilicon, or multicrystalline silicon, is widely used to produce solar cell wafers. However, the conversion efficiencies are often lower than equivalent monocrystalline or thin film cells, with the structur... Read More about Orientation imaging of macro-sized polysilicon grains on wafers using spatially resolved acoustic spectroscopy.

Comparison of grain to grain orientation and stiffness mapping by spatially resolved acoustic spectroscopy and EBSD (2017)
Journal Article
Mark, A., Li, W., Sharples, S., & Withers, P. (in press). Comparison of grain to grain orientation and stiffness mapping by spatially resolved acoustic spectroscopy and EBSD. Journal of Microscopy, https://doi.org/10.1111/jmi.12550

Our aim was to establish the capability of spatially resolved acoustic spectroscopy (SRAS) to map grain orientations and the anisotropy in stiffness at the sub-mm to micron scale by comparing the method with electron backscatter diffraction (EBSD) un... Read More about Comparison of grain to grain orientation and stiffness mapping by spatially resolved acoustic spectroscopy and EBSD.