Sir John Pethica FRS FREng MRIA

Prof Sir John Pethica FRS FREng
Visiting Professor
john.pethica@materials.ox.ac.uk

Surface and nanometer scale properties of materials. Study of mechanical properties using nanoindentation and of surface atomic structure and transport processes using scanning tunnelling microscopy. Development of atom resolved AFM and force spectroscopy of single bonds.

 

  • Holweck Medal, Sociéte Francaise de Physique & IoP, 2002
  • Hughes Medal, Royal Society, 2001
  • Rosenhain Medal and Prize, Institute of Materials, 1997
  • Sabbatical Chair, Sony corporation R&D, Japan, 1993-4

Selected Recent Publications

“In situ measurement of bulk modulus and yield response of glassy thin films via confined layer compression”, O. Brazil, J. P. de Silva, M. Chowdhury, H. Yoon, G. B. McKenna, W. C. Oliver, J. Kilpatrick, J. B. Pethica, G. L. W. Cross, J. Mater. Res. 35, 644 (2020).

“Extrinsic plastic hardening of polymer thin films in flat punch indentation”, O. Brazil, J.P. de Silva, J.B. Pethica & G.L.W. Cross Philosophical Magazine, (2021) doi: 10.1080/14786435.2021.1900615

“The contribution of plastic sink-in to the static friction of single asperity microscopic contacts”, O. Brazil, J.B. Pethica & G.M. Pharr, Proc. R. Soc. A (2021) 0502. doi.org/10.1098/rspa.2021.0502

“Densification of a polymer glass under high-pressure shear flow”, O. Brazil, H.O. Özer , B.Watts, J.B.Pethica, G.L.W. Cross, Phys.Rev.B, 106, L060103 (2022) doi: 10.1103/PhysRevB.106.L060103