TY - JOUR
T1 - Microstructure and field emission properties of the Si-TaSi2 eutectic in situ composites by electron beam floating zone melting technique
AU - Cui, Chunjuan
AU - Zhang, Jun
AU - Jia, Zhiwei
AU - Su, Haijun
AU - Liu, Lin
AU - Fu, Hengzhi
PY - 2008/1/4
Y1 - 2008/1/4
N2 - The directionally solidified Si-TaSi2 eutectic in situ composites, which have highly aligned and uniformly distributed TaSi2 fibers embedded in the Si continuous matrix, are obtained by electron beam floating zone melting (EBFZM) technique at the solidification rate range 0.3-9.0 mm/min. The preferential orientation of the Si-TaSi2 eutectic is also studied by selected area electron diffraction (SAED), which is [0 1̄ 1̄]Si∥[0 0 0 1]TaSi2 and (0 1̄ 1)Si∥(0 1̄ 1 1)TaSi2. Moreover, field emission properties of the Si-TaSi2 eutectic in situ composites are investigated by transparent anode imaging technology. Approximately straight F-N curves show that this material has excellent field emission properties.
AB - The directionally solidified Si-TaSi2 eutectic in situ composites, which have highly aligned and uniformly distributed TaSi2 fibers embedded in the Si continuous matrix, are obtained by electron beam floating zone melting (EBFZM) technique at the solidification rate range 0.3-9.0 mm/min. The preferential orientation of the Si-TaSi2 eutectic is also studied by selected area electron diffraction (SAED), which is [0 1̄ 1̄]Si∥[0 0 0 1]TaSi2 and (0 1̄ 1)Si∥(0 1̄ 1 1)TaSi2. Moreover, field emission properties of the Si-TaSi2 eutectic in situ composites are investigated by transparent anode imaging technology. Approximately straight F-N curves show that this material has excellent field emission properties.
KW - A1. Directional solidification
KW - A1. Eutectic in situ composite
KW - A1. Transmission electron microscopy
KW - A2. Electron beam floating zone melting
KW - B2. Si-TaSi
KW - B3. Field emission
UR - http://www.scopus.com/inward/record.url?scp=36549004002&partnerID=8YFLogxK
U2 - 10.1016/j.jcrysgro.2007.10.023
DO - 10.1016/j.jcrysgro.2007.10.023
M3 - 文章
AN - SCOPUS:36549004002
SN - 0022-0248
VL - 310
SP - 71
EP - 77
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 1
ER -