TY - JOUR
T1 - Ultra-long single-crystalline α-Si 3N 4 nanowires
T2 - Derived from a polymeric precursor
AU - Yang, Weiyou
AU - Xie, Zhipeng
AU - Li, Jingjing
AU - Miao, Hezhuo
AU - Zhang, Ligong
AU - An, Linan
PY - 2005/6
Y1 - 2005/6
N2 - Single-crystalline α-Si 3N 4 nanowires were synthesized by thermal decomposition of a polysilazane preceramic polymer using FeCl 2 powders as catalyst. The nanowires, which are 20-40 nm in diameter and up to several mm in length, possess smooth surfaces and uniform diameters along the entire length and contain no detectable structural defects such as dislocation or stacking faults. The study also revealed that all nanowires grow along [100] direction. The growth of the nanowires is attributed to a novel solid-liquid-gas-solid reaction/crystallization process. The mechanism that governs the formation of nanowires rather than nanobelts is discussed.
AB - Single-crystalline α-Si 3N 4 nanowires were synthesized by thermal decomposition of a polysilazane preceramic polymer using FeCl 2 powders as catalyst. The nanowires, which are 20-40 nm in diameter and up to several mm in length, possess smooth surfaces and uniform diameters along the entire length and contain no detectable structural defects such as dislocation or stacking faults. The study also revealed that all nanowires grow along [100] direction. The growth of the nanowires is attributed to a novel solid-liquid-gas-solid reaction/crystallization process. The mechanism that governs the formation of nanowires rather than nanobelts is discussed.
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U2 - 10.1111/j.1551-2916.2005.00270.x
DO - 10.1111/j.1551-2916.2005.00270.x
M3 - Article
AN - SCOPUS:27644579443
SN - 0002-7820
VL - 88
SP - 1647
EP - 1650
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 6
ER -