Microstructure and mechanical properties of aluminum nitride co-doped with cerium oxide via hot-pressing sintering

被引：37
作者：
Li, Qinggang [1 ,2 ]
Wang, Zhi [1 ]
Wu, Chao [1 ]
Cheng, Xin [1 ,2 ]
机构：
[1] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Peoples R China
[2] Shandong Prov Key Lab Preparat & Measurement Bldg, Jinan 250022, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 640卷
基金：
中国国家自然科学基金;
关键词：
CeO2; Mechanical properties; Microstructure; Thermal conductivity; Hot-pressing sintering; ALN CERAMICS; THERMAL-CONDUCTIVITY; ADDITIVES; PHASE; COMPOSITES; OXYGEN; Y2O3; CEO2;
D O I：
10.1016/j.jallcom.2015.03.235
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effects of hot-pressing sintering of CeO2 additive on the densification behaviors and microstructural development of AlN ceramics are investigated. CeO2 additive can improve the physical and mechanical properties, thermal conductivity, and purification of the grain boundaries. The resulting AlN ceramic exhibits a flexural strength of 387.9 MPa, a fracture toughness of 3.34 MPa m(1/2), a Vickers, hardness of 12.68 GPa, a thermal conductivity of 168.3 Wm(-1) K-1, and a relative density of 99.59%. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：275 / 279
页数：5
相关论文
共 21 条
  • [1] Thermal conductivity of single crystal and ceramic AlN
    AlShaikhi, A.
    Srivastava, G. P.
    [J]. JOURNAL OF APPLIED PHYSICS, 2008, 103 (08)
  • [2] On the effects of secondary phase on thermal conductivity of AlN ceramic substrates using a microstructural modeling approach
    Boey, F
    Tok, AIY
    Lam, YC
    Chew, SY
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 335 (1-2): : 281 - 289
  • [3] Structure and thermal conductivity of powder injection molded AlN ceramic
    Du, Xueli
    Qin, Mingli
    Sun, Yue
    Yuan, Zhihao
    Yang, Baohe
    Qu, Xuanhui
    [J]. ADVANCED POWDER TECHNOLOGY, 2010, 21 (04) : 431 - 434
  • [4] Study of rare-earth oxide sintering additive systems for Spark Plasma Sintering AlN ceramics
    He, Xiulan
    Ye, Feng
    Zhang, Haijiao
    Liu, Limeng
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (20): : 5268 - 5272
  • [5] Effect of oxygen on the thermal conductivity of aluminium nitride ceramics
    Jarrige, J
    Lecompte, JP
    Mullot, J
    Muller, G
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1997, 17 (15-16) : 1891 - 1895
  • [6] Low temperature synthesis of AlN by addition of various Li-salts
    Kameshima, Y
    Irie, M
    Yasumori, A
    Okada, K
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2004, 24 (15-16) : 3801 - 3806
  • [7] Effects of MgO addition on the density and dielectric loss of AlN ceramics sintered in presence of Y2O3
    Kume, S
    Yasuoka, M
    Omura, N
    Watari, K
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2005, 25 (12) : 2791 - 2794
  • [8] High-strength AlN ceramics by low-temperature sintering with CaZrO3-Y2O3 co-additives
    Lee, Hyun Min
    Kim, Do Kyung
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2014, 34 (15) : 3627 - 3633
  • [9] Low temperature pressureless sintering of α-SiC with Al2O3 and CeO2 as additives
    Liang, Hanqin
    Yao, Xiumin
    Zhang, Jingxian
    Liu, Xuejian
    Huang, Zhengren
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2014, 34 (03) : 831 - 835
  • [10] Effects of CaCO3 content on the densification of aluminum nitride
    Molisani, A. L.
    Yoshimura, H. N.
    Goldenstein, H.
    Watari, K.
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2006, 26 (15) : 3431 - 3440
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