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Unique mechanical properties of nano-grained YAG transparent ceramics compared with coarse-grained partners

机译:纳米粒YAG透明陶瓷与粗粒伙伴相比的独特机械性能

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摘要

In order to improve the inherent brittleness of the conventional coarse-grained YAG transparent ceramics, nano-grained YAG transparent ceramics were fabricated at 5 GPa/450 degrees C using the super high pressure sintering technique. Their mechanical properties were investigated by nanoindentation and the Vickers indentation measuring methods. It was found that the nano-grained YAG transparent ceramics exhibited much better ductility compared with the coarse-grained counterparts. The grain-boundary sliding provides the main contribution to plastic deformations of nano-grained YAG transparent ceramics. (C) 2016 Elsevier Ltd. All rights reserved.
机译:为了提高常规粗晶YAG透明陶瓷的固有脆性,使用超高压烧结技术在5 GPa / 450℃下制备了纳米晶YAG透明陶瓷。通过纳米压痕和维氏压痕测量方法研究了它们的机械性能。已经发现,与粗糙颗粒对应物相比,纳米颗粒YAG透明陶瓷具有更好的延展性。晶界滑动为纳米晶粒YAG透明陶瓷的塑性变形提供了主要贡献。 (C)2016 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Materials & design》 |2016年第5期|9-15|共7页
  • 作者单位

    Sichuan Univ, Coll Aeronaut & Astronaut, Chengdu 610064, Peoples R China;

    Sichuan Univ, Coll Aeronaut & Astronaut, Chengdu 610064, Peoples R China;

    XHU Univ, Coll Architecture & Civil Engn, Chengdu 611930, Peoples R China;

    Sichuan Normal Univ, Coll Phys & Elect Engn, Chengdu 610101, Peoples R China;

    Sichuan Normal Univ, Coll Phys & Elect Engn, Chengdu 610101, Peoples R China;

    Sichuan Univ, Coll Phys Sci & Technol, Chengdu 610064, Peoples R China;

    Univ Paris Ouest Nanterre La Def, 50 Rue Sevres, F-92410 Ville Davray, France;

    Chengdu Univ, Sch Mech Engn, Chengdu 610106, Peoples R China;

    Sichuan Univ, Coll Phys Sci & Technol, Chengdu 610064, Peoples R China;

    Sichuan Univ, Coll Aeronaut & Astronaut, Chengdu 610064, Peoples R China|Chengdu Univ, Sch Mech Engn, Chengdu 610106, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Nano ceramics; YAG; Nanoindentation; Mechanical property; Toughness;

    机译:纳米陶瓷;YAG;纳米压痕;力学性能;韧性;

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