Physics
Scientific paper
Dec 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985pepi...41..108b&link_type=abstract
Physics of the Earth and Planetary Interiors, Volume 41, Issue 2-3, p. 108-124.
Physics
10
Scientific paper
Transient and steady-state creep of single crystal NaCl was measured in the temperature range 560-736°C and at stresses between 0.027 and 0.188 MPa. Samples were loaded parallel to the <100> direction and strain was measured using a capacitive transducer having a resolution of 10-7.
The non-recoverable portion of the transient response can be represented by a power law in time with an exponent of about 0.55. The activation energy for transient creep in previously deformed crystals is 0.20 MJ mol-1, the same as that for steady-state creep, while the activation energy for transient creep in annealed crystals is 0.16 MJ mol-1 which is approximately equal to the activation energy for core diffusion. Transient strain rates are linearly proportional to stress.
Steady-state strain rates are proportional to σ4 for stresses above 0.1 MPa, in agreement with previous studies. Below 0.1 MPa the strain rates have a linear dependence on stress. We interpret this behavior to be analogous to Harper-Dorn creep in metals, although higher dislocation densities and the observations of orthogonal slip bands suggest that a different micromechanism may control Newtonian flow in this non-metallic system.
Banerdt Bruce W.
Sammis Charles G.
No associations
LandOfFree
Low stress high temperature creep in single crystal NaCl does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Low stress high temperature creep in single crystal NaCl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low stress high temperature creep in single crystal NaCl will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1163878