Dilatometry: a powerful tool for the study of defects in ultrafine-grained metals Sprengel, W. ; Oberdorfer, B. ; Steyskal, E. -M. ; Würschum, R. Abstract Publication: Journal of Materials Science Pub Date: November 2012 DOI: 10.1007/s10853-012-6460-9 Bibcode: 2012JMatS..47.7921S