Oy. Nickolayev et Em. Schulson, GRAIN-BOUNDARY SLIDING AND ACROSS-COLUMN CRACKING IN COLUMNAR ICE, Philosophical magazine letters, 72(2), 1995, pp. 93-97
Experiments have revealed evidence for grain-boundary sliding and acro
ss-column cracking in columnar fresh-water ice loaded under uniaxial c
ompression at - 10 degrees C (T-h = 0.96) at strain rates of 10(-4) an
d 10(-6)s(-1).