Preparation of Ni-precipitated hBN powder by rotary chemical vapor deposition and its consolidation by spark plasma sintering
Preparation of Ni-precipitated hBN powder by rotary chemical vapor deposition and its consolidation by spark plasma sintering
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DOI：
10.1016/j.jallcom.2010.04.170
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发表时间：
2010-07
影响因子：
6.2
通讯作者：
Jianfeng Zhang;R. Tu;T. Goto
中科院分区：
文献类型：
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作者：
Jianfeng Zhang;R. Tu;T. Goto
以茂镍(NiCp2)为前驱体，采用旋转化学气相沉积法(RCVD)在hBN粉末表面均匀沉积了Ni纳米粒子。当NiCp2的供给量(Rs)从0增加到1.12×10−6kgs−1时，平均晶粒尺寸和Ni含量分别从13.9 nm增加到84.5 nm和0.98增加到3.65质量%。随着Ni含量的增加和烧结温度的升高，hBN的致密度增加。在2273K时密度最高，为97.3%。
Ni nanoparticles were uniformly precipitated on hBN powder by rotary chemical vapor deposition (RCVD) using nickelocene (NiCp2) as a precursor. The average grain size and the content of Ni increased from 13.9 to 84.5nm and 0.98 to 3.65mass%, respectively, with increasing supply rate (Rs) of NiCp2from 0 to 1.12×10−6kgs−1. The Ni-precipitated hBN powder was consolidated by spark plasma sintering. The density of the hBN body increased with increasing Ni content and sintering temperature. The highest density was 97.3% at 2273K.