HfB2 prepared by sol-gel method and its oxidation behavior

被引：0
|
作者：
机构：
[1] Yao, Dongjia
[2] Li, Hejun
[3] Liu, Lei
[4] Fu, Qiangang
[5] Li, Kezhi
[6] Tao, Jun
来源：
Li, H. (lihejun@nwpu.edu.cn) | 1600年 / Science Press卷 / 42期
关键词：
Boric acid - Sol-gel process - Hafnium - Borides - Hafnium compounds - Particle size - Powders - Boride coatings - Oxidation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
HfB2 powders were prepared successfully by combining sol-gel with carbonthermal reduction. The phase components and micro-structure were analyzed by XRD and SEM, respectively. The oxidation behavior of the powders at high temperature was measured by TGA. The results show that reduction temperature and content of boric acid have obvious effects on the purity, the average size and the oxidation behavior of HfB2. As the temperature is 1800°C and the content of boric acid is higher than its stoichiometric ratio of the synthesizing of HfB2, the obtained HfB2 with high purity and uniform particle size has the better oxidation behavior. Moreover, the reactive mechanism of preparing HfB2 powders was also discussed. Copyright © 2013, Northwest Institute for Nonferrous Metal Research. Published by Elsevier BV. All rights reserved.
引用
收藏
相关论文
共 50 条
  • [21] The behavior of HfB2 under neutron irradiation
    Mohammad Mehdi Nasseri
    Nuclear Science and Techniques, 2016, 27
  • [22] The behavior of HfB2 under neutron irradiation
    Nasseri, Mohammad Mehdi
    NUCLEAR SCIENCE AND TECHNIQUES, 2016, 27 (02)
  • [23] Effect of carbon nanotubes on sintering behavior of alumina prepared by sol-gel method
    Liu, Yaodong
    Chae, Han Gi
    Choi, Young Ho
    Kumar, Satish
    CERAMICS INTERNATIONAL, 2014, 40 (05) : 6579 - 6587
  • [24] Impact of a Subsonic Dissociated Air Flow on the Surface of HfB2–30 vol % SiC UHTC Produced by the Sol–Gel Method
    E. P. Simonenko
    N. P. Simonenko
    A. N. Gordeev
    A. F. Kolesnikov
    V. G. Sevastyanov
    N. T. Kuznetsov
    Russian Journal of Inorganic Chemistry, 2018, 63 : 1345 - 1355
  • [25] SOL-GEL METHOD AND ITS APPLICATIONS
    SAKKA, S
    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, 1991, 77 (03): : 326 - 335
  • [26] Photoconductive properties of TiO2 films prepared by the sol-gel method and its application
    Haga, Y
    An, HSK
    Yosomiya, R
    JOURNAL OF MATERIALS SCIENCE, 1997, 32 (12) : 3183 - 3188
  • [27] Oxidation property of SiO2-supported small nickel particle prepared by the sol-gel method
    Yamamoto, Y.
    Yamashita, S.
    Afiza, N.
    Katayama, M.
    Inada, Y.
    16TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS16), 2016, 712
  • [28] Production of HfB2–SiC (10–65 vol % SiC) Ultra-High-Temperature Ceramics by Hot Pressing of HfB2–(SiO2–C) Composite Powder Synthesized by the Sol–Gel Method
    E. P. Simonenko
    N. P. Simonenko
    E. K. Papynov
    E. A. Gridasova
    V. G. Sevastyanov
    N. T. Kuznetsov
    Russian Journal of Inorganic Chemistry, 2018, 63 : 1 - 15
  • [29] Study of viscosity and stability of SiO2 sol prepared by sol-gel method
    Peng, Kun
    Yuanyin, Mingyue
    Zhu, Jiajun
    Li, Deyi
    Zhou, Lingping
    RESEARCH IN MATERIALS AND MANUFACTURING TECHNOLOGIES, PTS 1-3, 2014, 835-836 : 454 - 457
  • [30] Properties of nanometer TiO2 prepared by a sol-gel method
    Department of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an
    710054, China
    Xiyou Jinshu Cailiao Yu Gongcheng, 2 (436-438): : 436 - 438
12345