TY  - JOUR
AU  - Solozhenko, V. L.
AU  - Kurakevych, O. O.
AU  - Sokolov, P. S.
AU  - Baranov, A. N.
AU  - DESY
TI  - Kinetics of the wurtzite-to-rock-salt phase transformation in ZnO at high pressure
JO  - The journal of physical chemistry  / A
VL  - 115
SN  - 1089-5639
CY  - Washington, DC
PB  - Soc.
M1  - PHPPUBDB-16823
SP  - 4354-4358
PY  - 2011
AB  - Kinetics of the wurtzite-to-rock-salt transformation in ZnO has been studied in the 5-7 GPa pressure range at temperatures below the activation of diffusion processes. The detailed analysis of non-isothermal experimental data using the general evolution equation describing the kinetics of direct phase transformations in solids allowed us to study the kinetic particularities of both nucleation and growth of the rock-salt phase in parent wurtzite ZnO. The main rate-limiting processes are thermally activated nucleation (E(N) = 383 kJ mol(-1) at 6.9 GPa) and thermally nonactivated (most probably quasi-martensitic) growth (k(G) = 0.833 min(-1) at 6.9 GPa). The high impact of thermal deactivation of nucleation places has been evidenced in the case of slow heating, which indirectly indicates that the rs-ZnO nucleation places are mainly produced by pressure-induced stresses in the parent phase.
KW  - Diffusion
KW  - Kinetics
KW  - Phase Transition
KW  - Pressure
KW  - Salts: chemistry
KW  - Temperature
KW  - Zinc Oxide: chemistry
KW  - Salts (NLM Chemicals)
KW  - Zinc Oxide (NLM Chemicals)
LB  - PUB:(DE-HGF)16
C6  - pmid:21488624
UR  - <Go to ISI:>//WOS:000289824500026
DO  - DOI:10.1021/jp201544f
UR  - https://bib-pubdb1.desy.de/record/88683
ER  -