TY - JOUR
T1 - Microstructure in Silicon Nitride Containing β-Phase Seeding
T2 - III, Grain Growth and Coalescence
AU - Lu, Horng Hwa
AU - Huang, Jow Lay
PY - 2001/2/6
Y1 - 2001/2/6
N2 - The mechanical properties of Si3N4 materials depend mainly on the microstructure, which originates during the densification process. The microscopic evidence indicates that β-Si3N4 seeds incorporated in the starting powders play an important role in microstructural development, especially in the heterogeneous grain growth of β-Si3N4 grains during sintering. The growth of β-grains is initiated from the β-seeds, resulting in a core/shell microstructure. The presence of Moiré fringes and dislocations is attributed to misfit strain and compositional differences between the core and the shell. Coalescence can occur at the final stage of sintering.
AB - The mechanical properties of Si3N4 materials depend mainly on the microstructure, which originates during the densification process. The microscopic evidence indicates that β-Si3N4 seeds incorporated in the starting powders play an important role in microstructural development, especially in the heterogeneous grain growth of β-Si3N4 grains during sintering. The growth of β-grains is initiated from the β-seeds, resulting in a core/shell microstructure. The presence of Moiré fringes and dislocations is attributed to misfit strain and compositional differences between the core and the shell. Coalescence can occur at the final stage of sintering.
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U2 - 10.1111/j.1151-2916.2001.tb00932.x
DO - 10.1111/j.1151-2916.2001.tb00932.x
M3 - Article
AN - SCOPUS:0035437574
SN - 0002-7820
VL - 84
SP - 1891
EP - 1895
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 8
ER -