TY - JOUR
T1 - Strain and deformation in ultra-hard nanocomposites nc-TiN/a-BN under hydrostatic pressure
AU - Prilliman, Stephen G.
AU - Clark, Simon M.
AU - Alivisatos, A. Paul
AU - Karvankova, Pavla
AU - Vepřek, Stan
PY - 2006/11/15
Y1 - 2006/11/15
N2 - A high pressure diffraction study, from ambient to 50 GPa, has been carried out on nanocrystalline TiN/amorphous BN nanocomposite materials prepared by plasma chemical vapor deposition. The compressibilities of these materials were found not to be significantly different from TiN. A large amount of biaxial and isotropic strain was found to build up on pressurization which continued to exist after depressurization and annealing indicating a permanent deformation under high pressure. This permanent deformation is located in the grain boundaries and is reduced by the presence of amorphous BN.
AB - A high pressure diffraction study, from ambient to 50 GPa, has been carried out on nanocrystalline TiN/amorphous BN nanocomposite materials prepared by plasma chemical vapor deposition. The compressibilities of these materials were found not to be significantly different from TiN. A large amount of biaxial and isotropic strain was found to build up on pressurization which continued to exist after depressurization and annealing indicating a permanent deformation under high pressure. This permanent deformation is located in the grain boundaries and is reduced by the presence of amorphous BN.
UR - http://www.scopus.com/inward/record.url?scp=33749521399&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2006.07.126
DO - 10.1016/j.msea.2006.07.126
M3 - Article
AN - SCOPUS:33749521399
VL - 437
SP - 379
EP - 387
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
SN - 0921-5093
IS - 2
ER -