Microstructure and mechanical properties of high-pressure sintered Al 2O3/SiC nanocomposites

被引：0
|
作者：
Teng, Yuancheng [1 ]
Sun, Zhiping [2 ]
Zhang, Kuibao [1 ]
Lu, Weiyuan [3 ]
机构：
[1] Teng, Yuancheng
[2] Sun, Zhiping
[3] Zhang, Kuibao
[4] Lu, Weiyuan
来源：
Teng, Y. (tyc239@163.com) | 1600年 / Elsevier Ltd卷 / 578期
关键词：
Al2O3/SiC nanocomposites were synthesized by high-pressure sintering using α-Al2O3 and β-SiC nanopowders as the raw materials. Microstructure and mechanical properties of the sintered samples were investigated using X-ray diffraction (XRD); Scanning Electron Microscope (SEM); Atomic Force Microscope (AFM) et al. The results indicate that high-pressure sintering is an effective sintering technique; which can densify Al2O3/SiC nanocomposites at high pressure (4.5 GPa) and relatively low temperature (1000-1230 °C). Rapid grain growth of Al2O3 is mainly restrained by the separation effect of nanosized SiC grains. Grain boundary; grain boundary-intragranular and nano-nano structured Al 2O3/SiC nanocomposites can be achieved by controlling the sintering temperature and β-SiC content. The highly densified Al 2O3/SiC nanocomposite (AS5-1170) exhibits excellent mechanical properties as 429.9 GPa in elastic modulus and 30.7 GPa in nano-hardness. © 2013 Elsevier B.V. All rights reserved;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
页码：67 / 71
相关论文
共 50 条
  • [41] Microstructure and Mechanical Properties of Al/Graphene Composite Produced by High-Pressure Torsion
    Zhao, Liyuan
    Lu, Huimin
    Gao, Zhijiang
    ADVANCED ENGINEERING MATERIALS, 2015, 17 (07) : 976 - 981
  • [42] Effect of External Pressure on the Microstructure and Mechanical Properties of In Situ (ZrB2+Al2O3/Al3Zr)/6016 Nanocomposites
    Soban Muddassir Dar
    Yutao Zhao
    Xizhou Kai
    Chuang Guan
    Zhuangzhuang Xu
    International Journal of Metalcasting, 2022, 16 : 2162 - 2174
  • [43] Effect of External Pressure on the Microstructure and Mechanical Properties of In Situ (ZrB2+Al2O3/Al3Zr)/6016 Nanocomposites
    Dar, Soban Muddassir
    Zhao, Yutao
    Kai, Xizhou
    Guan, Chuang
    Xu, Zhuangzhuang
    INTERNATIONAL JOURNAL OF METALCASTING, 2022, 16 (04) : 2162 - 2174
  • [44] PROCESSING AND PROPERTIES OF AL2O3/SIC NANOCOMPOSITES
    BORSA, CE
    JIAO, S
    TODD, RI
    BROOK, RJ
    JOURNAL OF MICROSCOPY-OXFORD, 1995, 177 : 305 - 312
  • [45] Processing and properties of Al2O3/SiC nanocomposites
    Borsa, C.E.
    Jiao, S.
    Todd, R.I.
    Brook, R.J.
    Journal of Microscopy, 1995, 177 (03): : 305 - 312
  • [46] Effect of metal coating of reinforcements on the microstructure and mechanical properties of Al-Al2O3 nanocomposites
    Pourhosseini, Shirin
    Beygi, Hossein
    Sajjadi, Seyyed Abdolkarim
    MATERIALS SCIENCE AND TECHNOLOGY, 2018, 34 (02) : 145 - 152
  • [47] Effect of SiC content on microstructure, mechanical and electrical properties of sintered Al-20Si-xSiC nanocomposites fabricated by mechanical alloying
    Zawrah, M. F.
    Mostafa, H. Abo
    Taha, M. A.
    MATERIALS RESEARCH EXPRESS, 2019, 6 (12)
  • [48] FRACTURE-TOUGHNESS OF HIGH-PRESSURE SINTERED AL2O3-ZRO2 CERAMICS
    NOMA, T
    SAWAOKA, A
    JOURNAL OF MATERIALS SCIENCE LETTERS, 1984, 3 (06) : 533 - 535
  • [49] MECHANICAL-PROPERTIES OF BETA-SIC PRESSURELESS SINTERED WITH AL2O3 ADDITIONS
    MULLA, MA
    KRSTIC, VD
    ACTA METALLURGICA ET MATERIALIA, 1994, 42 (01): : 303 - 308
  • [50] Effect of Al2O3 on the mechanical properties and microstructure of Ti3SiC2/Al2O3 composite
    Wang, HJ
    Jin, ZH
    Miyamoto, Y
    RARE METAL MATERIALS AND ENGINEERING, 2004, 33 (01) : 40 - 42
12345