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SUMMARY:Wave propagation and scattering in polycrystalline media and appli
 cations to ultrasonic characterization - Andrea Argüelles (Pennsylvania S
 tate University)
DTSTART:20230323T103000Z
DTEND:20230323T110000Z
UID:TALK195709@talks.cam.ac.uk
DESCRIPTION:Nondestructive characterization of microstructure in polycryst
 alline media is highly desirable. Mathematical models of wave propagation 
 and material statistics can be used to invert microstructural data from ul
 trasonic data. This presentation provides an overview of the existing mode
 ls to describe scattering in polycrystals. In particular\, the use of spat
 ial correlation functions (SCFs)\, which describe how microscopic variable
 s at random sites are correlated\, is discussed. Typical SCF forms in rela
 tion to ultrasonic scattering measurements are described along with recent
  advances in semi-analytical approaches.
LOCATION:Seminar Room 1\, Newton Institute
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