Tensile and creep performance of a novel mullite fiber at high temperatures

被引：34
作者：
Almeida, Renato S. M. [1 ]
Tushtev, Kamen [1 ]
Clauss, Bernd [2 ]
Grathwohl, Georg [1 ]
Rezwan, Kurosch [1 ,3 ]
机构：
[1] Univ Bremen, Adv Ceram, D-28359 Bremen, Germany
[2] Inst Text Chem & Chem Fibers, D-73770 Denkendorf, Germany
[3] Univ Bremen, MAP Ctr Mat & Proc, D-28359 Bremen, Germany
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2015年 / 76卷
关键词：
Ceramic fiber; Mechanical properties; High-temperature properties; Inelastic deformation; MECHANICAL-PROPERTIES; ALPHA-ALUMINA; OXIDE FIBERS; GRAIN-GROWTH; COMPOSITES; DEGRADATION; EVOLUTION; STRENGTH; ROOM;
D O I：
10.1016/j.compositesa.2015.05.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The novel fiber CeraFib75 with a composition near to pure mullite was analyzed with respect to its potential for high-temperature applications. This mullite fiber free of glass phase was aimed to overcome the strength of commercial oxide fibers at high-temperatures. Tensile tests at room and high temperatures ranging from 900 to 1400 degrees C and creep tests were performed. Nextel (TM) 720, another crystalline mullite-alumina fiber, was tested as a reference. Microstructure and crystal phase analysis of the new fiber revealed mullite grains with traces of and a-alumina in-between; it contains occasionally defects causing a reduced strength at room-temperature. Remarkably, at temperatures beyond 1200 degrees C, CeraFib75 presented a higher tensile strength than Nextel (TM) 720. During tensile tests at 1400 degrees C, an extended region of inelastic deformation was observed for CeraFib fibers only, which was related to a grain boundary sliding mechanism. Creep rates were of the same order of magnitude for both fibers. (C) 2015 Elsevier Ltd. All rights reserved.
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收藏
页码：37 / 43
页数：7
相关论文
共 31 条
  • [1] Thermal degradation of an oxide fibre (Nextel 720)/aluminosilicate composite
    Antti, ML
    Lara-Curzio, E
    Warren, R
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2004, 24 (03) : 565 - 578
  • [2] Creep and microstructure of Nextel™ 720 fiber at elevated temperature in air and in steam
    Armani, C. J.
    Ruggles-Wrenn, M. B.
    Hay, R. S.
    Fair, G. E.
    [J]. ACTA MATERIALIA, 2013, 61 (16) : 6114 - 6124
  • [3] Creep of Nextel™ 610 Fiber at 1100°C in Air and in Steam
    Armani, Clinton J.
    Ruggles-Wrenn, Marina B.
    Fair, Geoff E.
    Hay, Randall S.
    [J]. INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY, 2013, 10 (02) : 276 - 284
  • [4] Compressive creep behavior in air of a slightly porous as-sintered polycrystalline α-alumina material
    Bernard-Granger, Guillaume
    Guizard, Christian
    Duclos, Richard
    [J]. JOURNAL OF MATERIALS SCIENCE, 2007, 42 (08) : 2807 - 2819
  • [5] Fine diameter ceramic fibres
    Bunsell, AR
    Berger, MH
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2000, 20 (13) : 2249 - 2260
  • [6] Failure of fiber bundles
    Calard, V
    Lamon, J
    [J]. COMPOSITES SCIENCE AND TECHNOLOGY, 2004, 64 (05) : 701 - 710
  • [7] Mechanical properties of alumina Nextel™ 720 fibres at room and elevated temperatures:: tensile bundle testing
    Dassios, KG
    Steen, M
    Filiou, C
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 349 (1-2): : 63 - 72
  • [8] Microstructural evolution under load and high temperature deformation mechanisms of a mullite/alumina fibre
    Deléglise, F
    Berger, MH
    Bunsell, AR
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2002, 22 (9-10) : 1501 - 1512
  • [9] Microstructural stability and room temperature mechanical properties of the Nextel 720 fibre
    Deléglise, F
    Berger, MH
    Jeulin, D
    Bunsell, AR
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2001, 21 (05) : 569 - 580
  • [10] DEVE HE, 1995, JOM-J MIN MET MAT S, V47, P33, DOI 10.1007/BF03221227
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