TY - JOUR
T1 - Dynamics of consolidation and crack growth in nanocluster-assembled amorphous silicon nitride
AU - Tsuruta, Kenji
AU - Nakano, Aiichiro
AU - Kalia, Rajiv K.
AU - Vashishta, Priya
PY - 1998/2
Y1 - 1998/2
N2 - Consolidation and fracture dynamics in nanophase amorphous Si3N4 are investigated using 106-atom molecular-dynamics simulations. At a pressure of 15 GPa and 2000 K, the nanophase system is almost fully consolidated within a fraction of a nanosecond. The consolidation process is well-described by the classical theory of sintering. Under an applied strain the consolidated system develops several cracks which propagate parallel to each other, causing failure at multiple sites. The critical strain at which the nanophase system fractures is much larger than that for crystalline Si3N4.
AB - Consolidation and fracture dynamics in nanophase amorphous Si3N4 are investigated using 106-atom molecular-dynamics simulations. At a pressure of 15 GPa and 2000 K, the nanophase system is almost fully consolidated within a fraction of a nanosecond. The consolidation process is well-described by the classical theory of sintering. Under an applied strain the consolidated system develops several cracks which propagate parallel to each other, causing failure at multiple sites. The critical strain at which the nanophase system fractures is much larger than that for crystalline Si3N4.
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U2 - 10.1111/j.1151-2916.1998.tb02354.x
DO - 10.1111/j.1151-2916.1998.tb02354.x
M3 - Article
AN - SCOPUS:0032003946
SN - 0002-7820
VL - 81
SP - 433
EP - 436
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 2
ER -