研究论文

电弧放电等离子体法合成立方相氮化铬纳米粉

  • 沈龙海 ,
  • 崔启良
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  • 1. 沈阳理工大学 理学院, 沈阳 110159; 2. 吉林大学 超硬材料国家重点实验室, 长春 130012

收稿日期: 2009-07-08

  修回日期: 2009-09-22

  网络出版日期: 2010-04-27

Synthesis of Cubic Chromium Nitride Nanocrystals Powders by Arc Discharge Plasma Method

  • SHEN Long-Hai ,
  • CUI Qi-Liang
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  • 1. School of Science, Shenyang Ligong University, Shenyang 110159, China; 2. State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China

Received date: 2009-07-08

  Revised date: 2009-09-22

  Online published: 2010-04-27

摘要

采用电弧放电等离子体方法,通过金属铬和氮气的直接反应合成了粒度小于10nm的纯立方相氮化铬(CrN)纳米粉.利用X射线衍射分析(XRD)、透射电镜(TEM)和傅立叶变换红外光谱(FT-IR)对不同氮气压下形成的产物进行了表征.研究了氮气压和氨气的加入对形成立方相CrN纳米晶的影响.研究结果表明:相对较低的N2气压(5~20kPa) 有利于金属Cr向立方CrN的转化,可以使更多的氮原子结合到金属Cr的格子中去;活性氮源(氨气)的加入降低了金属Cr的氮化.

本文引用格式

沈龙海 , 崔启良 . 电弧放电等离子体法合成立方相氮化铬纳米粉[J]. 无机材料学报, 2010 , 25(4) : 411 -414 . DOI: 10.3724/SP.J.1077.2010.00411

Abstract

Cubic CrN nanoparticles with the size less than 10 nm were synthesized through direct reaction of metal Cr with N2 by arc discharge plasma method. The products synthesized under different nitrogen gas pressure were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM) and Fourier transform infrared spectra (FT-IR). The effect of N2 pressure and accession of NH3 on the formation of cubic phase CrN were studied. The results indicate that it is beneficial for the convesion of Cr to CrN under relative low N2 pressure (5~20kPa), namely more N atoms can diffuse into Cr lattice. Moreover, the accession of active nitrogen resource (NH3) weakens the nitridation of Cr.

参考文献

[1]Wang Da Yung, Weng Ko Wei. Microstructure analyses of CrN coating synthesized by a hybrid PVD and metalplasma ion implantation process.Surface and Coatings Technology, 2002, 156(1/2/3):195-200.
[2] Lai F D, Wu J K. Structure,hardness and adhesion properties of CrN films deposited on nitrided and nitrocarburized SKD 61 tool steels. Surface and Coatings Technology,1996,88(1/2/3):183-189.
[3] Ogino Y, Yamasaki T, Atzumi N, et al. Nitriding of transition metal powders by ball milling in nitrogen gas. Materials Transactions, 1993,34(12):1212-1216.
[4] Ren R M, Yang Z G, Shaw Leon L. Synthesis of nanostructured chromium nitrides through mechanical activation process. Nanostructured Materials,1999,11(1): 25-35.
[5] Cai P, Zhang W, Chen L, et al.A simple nitrification route to nanocrystalline CrN. Journal of Alloys and Compounds,2006,414(1/2): 221-223.
[6] Qian X F, Zhang X M, Wang C, et al. Benzenethermal preparation of nanocrystalline chromium nitride. Materials Reseach Bulletin,1999,34(3): 433-436.
[7] Zhang Z, Liu R, Qian Y. Synthesis of nanocrystalline chromium nitride from ammonolysis of chromium chloride. Materials Research Bulletin,2002,37(5): 1005-1010.
[8] Qiu Y, Gao L. Synthesis of nanocrystalline CrN from Cr[OC(NH2)26Cl3 coordination compound. Materials Research Bulletin,2003,38(9/10): 1551-1557.
[9] Yang X, Li C, Yang B,et al. Thermal nitridation synthesis of MN (M=Ti,V and Cr) nanocrystals from metals and NH4Cl.Materials Research Bulletin,2004,39(7/8): 957-962.
[10] 李耀刚, 高 濂(LI Yao-Gang,et al). 氨解法制备纳米氮化铬粉体. 无机材料学报(Journal of Inorganic Materials),2003,18(1): 233-236.
[11] 沈龙海. 纳米金属氮化物的直流电弧法制备与高压物性研究. 长春: 吉林大学博士论文,2006.
[12] Li H D, Yang H B, Yu S, et al. Synthesis of ultrafine gallium nitride powder by the direct current arc plasma method. Applied Physics Letters,1996,69(9):1285-1287.
[13] Suzuki T, Saito H, Hirai M, et al. Characteristics of CrN films prepared by pulsed laser deposition.Thin Solid Films,2002,407(1/2): 118-121.
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