Ice761: double sample, std ice vs. coarse-grained ice
  Top piece: standard ice I (molded with 0.18-0.25-mm seed)
  Bottom piece: coarse-grained ice I (molded with 0.50-1.00 mm seed)
   
   
T = 210 K, P = 50 MPa, s = 7 MPa step (1)
T = 210 K, P = 50 MPa, s = 8.3 MPa step (2)
T = 220 K, P = 50 MPa, edot = 4.5e-6/s step (3)
T = 220 K, P = 50 MPa, edot = 4.5e-6/s step (3a)

 

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: V1.00 ≈ 6e-6/s ≈ 2%/hr. Load to stress translation for ice687 is roughly 0.25 MPa/mV, with a 5 mV zero offset. Horizontal scale is time. 5000 ≈ 14 hrs.