Ice609: 3 x P-drop fine-grained ice (not rejacketed after P drop)  
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P = 100 MPa, T = 219 K, s = 2.5 MPa step (1a), (1b)
P = 100 MPa, T = 219 K, s = 3.7 MPa step (2)
P = 100 MPa, T = 210 K, s = 3.7 MPa step(3)

after

  

Legend: Upper graph of each pair is motor speed V (proportional to edot); lower graph is load (in volts). Translate motor V to edot thus: for 100:1 gearing, V0.05 ≈ 3e-8/s; for 10:1 gearing, V0.05≈3e-7/s. Load to stress translation for ice601 is 0.206 MPa/mV, with a few mV zero offset. Horizontal scale is time. 5000≈14 hrs.

    
e=0.140 1648 hrs 7/15, end of step (3), end of run. Good run! Both Bill and Sabrina witnessed the glitch at ~pt #8000 and subsequent ~25% increase in edot. Nothing was apparent; was there a change in force gage zero?
e=0.1329 0817 hrs 7/15, step (3) continues. [slightly more recent screen shot here as placeholder].
e=0.1249 2104 hrs 7/14, start of step (3). Significant here is how quickly the steady-state edot is reached. This is consistent with GSS creep.
e=0.1172 2212 hrs 7/13, end of step (2). The last part of this record shows steady behavior at n=2 with respect to step (1)
e=0.0940 1536 hrs 7/13. Start of step (2). So far there appears to be little or no transient behavior. Based on stresses and stain rates in steps (1) and (2), n ≈ 2.
e=0.0864 1340 hrs 7/13. End of step (1b). Note the quick drop in edot back to earlier values as T dropped back to normal.
e=0.0671 0540 hrs 7/13, continuing (1b). edot is rising because T has risen, as it turns out, because the relief valve on the LN tank is malfunctioning. Maximum T reached at ~0845 hrs today was ~1 K above starting T. The apparent edot here is >50% higher, but realize that figure may include thermal expansion of machine parts.
e=0.0459 2027 hrs 7/12. Start of step (1b) after quick unload and check of force gage zero (it's ok). edot comes back right to where it was, which is always a good sign.
e=0.0345 1600 hrs 7/12. End of step (1a).
e=0.0104 2356 hrs 7/11/10. Finally underway many days of support system breakdowns (cooling water, compressed air, and liquid nitrogen, one after the other). Sample has been at 210 K and 100 MPa hydrostatic P since 7/2, and at 220 K, 100 MPa for the last ~36 hrs before this step started.