Hot-pressing of MoSi2 reinforced B4C composites

被引：48
|
作者：
Kumar, Shankar [1 ]
Sairam, K. [2 ]
Sonber, J. K. [2 ]
Murthy, T. S. R. Ch. [2 ]
Reddy, Vidhyasagar [1 ]
Rao, G. V. S. Nageswara [1 ]
Rao, T. Srinivasa [1 ]
机构：
[1] Natl Inst Technol, Dept Met & Mat Engn, Warangal, Andhra Pradesh, India
[2] Bhabha Atom Res Ctr, Mat Proc Div, Mumbai 400085, Maharashtra, India
来源：
CERAMICS INTERNATIONAL | 2014年 / 40卷 / 10期
关键词：
Hot pressing; Composites; Mechanical properties; B4C; MoSi2; BORON-CARBIDE; MECHANICAL-PROPERTIES; DENSIFICATION; MICROSTRUCTURE; OXIDATION; BEHAVIOR; PHASE;
D O I：
10.1016/j.ceramint.2014.06.135
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This paper reports on the effect of molybdenum disilicide (MoSi2) addition on the densification and mechanical properties of boron carbide (B4C). Molybdenum disilicide powder (10 and 30 wt%) was added to boron carbide powder and consolidated by hot pressing at various temperatures (1700-1900 degrees C) and pressures (30-50 MPa) in 0.001 Pa vacuum. MoSi2 was found to react with B4C and form reaction products SiC, MoB2 and Mo2B5. Slight improvement in density was observed with respect to MoSi2 addition. High density compact has been obtained with 30 wt% MoSi2 at 1900 C under a pressure of 50 MPa. The hardness, elastic modulus and fracture toughness of high dense B4C+30 wt% MoSi2 compact was found to be 35.1 GPa, 555 GPa and 4.8 MPa m(1/2) (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：16099 / 16105
页数：7
相关论文
共 50 条
  • [1] Study on reaction between MoSi2 and B4C in hot-pressing-process
    Jinshu Xuebao, 6 (634-637):
  • [2] Study of the tribological behavior of B4C reinforced MoSi2 based composites
    Yan, Feng-Yuan
    Lin, Xin-Hua
    Lu, Jin-Jun
    Qi, Shang-Kui
    Mocaxue Xuebao/Tribology, 2002, 22 (04): : 263 - 267
  • [3] Fabrication and Microstructure of B4C Matrix composites by Hot-Pressing Sinter
    Zhang, Min
    Zhang, Weike
    Gao, Lizhen
    Zhang, Yujun
    ADVANCES IN CIVIL ENGINEERING AND ARCHITECTURE INNOVATION, PTS 1-6, 2012, 368-373 : 326 - +
  • [4] Densification and Mechanical Properties of B4C Based Composites Sintered by Reaction Hot-pressing
    Wang Guofeng
    Zhang Jihong
    Zhang Chunping
    Zhang Kaifeng
    HIGH-PERFORMANCE CERAMICS VI, 2010, 434-435 : 24 - +
  • [5] EFFECT OF HOT-PRESSING TEMPERATURE ON THE TENSILE STRENGTH OF B4C COATED BORON FIBER REINFORCED Al COMPOSITES.
    Goda, Koichi
    Fukunaga, Hideharu
    Itonaga, Masumi
    Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, 1987, 53 (486): : 180 - 184
  • [6] Reaction hot pressing and characterization of MoSi2/SiCp composites
    Mitra, R.
    Mahajan, Y.R.
    Prasad, N.E.
    Chiou, W.A.
    Ganguly, C.
    Key Engineering Materials, 1995, 108-110 : 11 - 18
  • [7] An investigation of the reaction hot-pressing synthesis of MoSi2/Ti3SiC2/Al composites
    Zhang, J. Y.
    Fu, Z. Y.
    Wang, W. M.
    HIGH-PERFORMANCE CERAMICS IV, PTS 1-3, 2007, 336-338 : 1364 - 1367
  • [8] Investigation of Microstructure and Machinable Mechanism of the B4C/BN Composites Fabricated by Hot-pressing Process
    Jiang, Tao
    MATERIALS SCIENCE AND ENGINEERING APPLICATION II, 2012, 413 : 420 - 425
  • [9] Influence of sintering additive on the performance of B4C based composites sintered by reaction hot-pressing
    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
    Fuhe Cailiao Xuebao, 2009, 4 (102-106):
  • [10] Mechanical and fracture behavior of B4C reinforced Al composites produced by hot pressing
    Ekici, Ergun
    Ozcatalbas, Yusuf
    Gulesin, Mahmut
    MATERIALS TESTING, 2016, 58 (02) : 133 - 139
12345