Effect of submicron spinel powders on the microstructure evolution and properties of alumina-based refractory castables

被引：9
作者：
Chen, Pingan [1 ]
Wang, Yulong [1 ]
Li, Xiangcheng [1 ]
Zhu, Boquan [1 ]
机构：
[1] Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan, Peoples R China
来源：
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2017年 / 14卷 / 04期
基金：
中国国家自然科学基金;
关键词：
corrosion; corrosion resistance; mechanical properties; microstructure; shock; shock resistance; MECHANICAL-PROPERTIES; CALCIUM HEXALUMINATE; CEMENT; COMPOSITES; RESISTANCE; AL2O3-MGO; CORROSION; STRENGTH; MGAL2O4;
D O I：
10.1111/ijac.12701
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：
The physical properties, including flow value, apparent porosity, and mechanical strength, increased significantly with submicron spinel contents in this study. The excellent physical properties can be attributed to the close-packed microstructure and high bonding strength between spinel and aggregates/matrix. Additionally, the submicron spinel powders promoted the formation of tabular CA(6) grains that generated a cross-linked structure and enhanced the mechanical properties. The microstructures of corroded castables suggested that submicron spinel powders contributed to the formation of a continuous and thick spinel layer at the slag-refractory interface and subsequently improved the slag resistance of the castables.
引用
收藏
页码：748 / 758
页数：11
相关论文
共 22 条
  • [11] Effect of spinel content on the properties of magnesia-spinel composite refractory
    Ghosh, A
    Sarkar, R
    Mukherjee, B
    Das, SK
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2004, 24 (07) : 2079 - 2085
  • [12] Transformation of the geopolymer gels to crystalline bonds in cold-setting refractory concretes: Pore evolution, mechanical strength and microstructure
    Kamseu, Elie
    Djangang, Chantale
    Veronesi, Paolo
    Fernanda, Andreola
    Melo, Uphie Chinje
    Sglavo, Vincenzo Mario
    Leonelli, Cristina
    [J]. MATERIALS & DESIGN, 2015, 88 : 336 - 344
  • [13] Effect of spinel content on hot strength of alumina-spinel castables in the temperature range 1000-1500°C
    Ko, YC
    Chan, CF
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1999, 19 (15) : 2633 - 2639
  • [14] Ko YC, 2000, J AM CERAM SOC, V83, P2333
  • [15] Microstructural analysis of corroded alumina-spinel castable refractories
    Korgul, P
    Wilson, DR
    Lee, WE
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1997, 17 (01) : 77 - 84
  • [16] MORI J, 1990, AM CERAM SOC BULL, V69, P1172
  • [17] Effect of preformed and in situ spinels on microstructure and properties of a low cement refractory castable
    Mukhopadhyay, S
    Das Poddar, PK
    [J]. CERAMICS INTERNATIONAL, 2004, 30 (03) : 369 - 380
  • [18] The impact of pre-formed and in situ spinel formation on the physical properties of cement-bonded high alumina refractory castables
    Sako, E. Y.
    Braulio, M. A. L.
    Brant, P. O.
    Pandolfelli, V. C.
    [J]. CERAMICS INTERNATIONAL, 2010, 36 (07) : 2079 - 2085
  • [19] Sarpoolaky H, 2001, J AM CERAM SOC, V84, P426
  • [20] Al2O3-based binders for corrosion resistance optimization of Al2O3-MgAl2O4 and Al2O3-MgO refractory
    Tomba Martinez, A. G.
    Luz, A. P.
    Braulio, M. A. L.
    Pandolfelli, V. C.
    [J]. CERAMICS INTERNATIONAL, 2015, 41 (08) : 9947 - 9956
123