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首页> 外文期刊>Corrosion science >Effect of tungsten-containing additives (WB/ WSi_2/ W) on ablation behavior of ZrB_2-SiC coating
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Effect of tungsten-containing additives (WB/ WSi_2/ W) on ablation behavior of ZrB_2-SiC coating

机译：含钨添加剂（WB / WSI_2 / W）对ZrB_2-SiC涂层的消融行为的影响

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摘要

ZrB2-SiC based composite coatings with different tungsten-containing additives (WB/WSi2/W) were prepared by vacuum plasma spray. The ablation resistance of the coatings was evaluated by a plasma flame. The phase composition and microstructure evolution of the composite coatings during ablation were characterized and the function of tungsten-containing additives was focused on. The results showed that the introduction of tungsten-containing additives could obviously reduce the surface temperature by about 300 degrees C during the ablation processes. Based on microstructure observation and thermodynamic calculations, it was considered that the evaporation of WO3 and formation/existence of pure W with high thermal conductivity contributed a lot to the reduction of the surface temperature.
机译：通过真空等离子体喷雾制备具有不同含钨添加剂（WB / WSI2 / W）的ZrB2-SiC的复合涂层。通过等离子体火焰评价涂层的消融抗性。复合涂层期间复合涂层的相组合物和微观结构演化的特征在于，含钨添加剂的功能集中于。结果表明，在消融过程中，含钨添加剂的引入可明显将表面温度降低约300℃。基于微观结构观察和热力学计算，认为WO3的蒸发和具有高导热率的纯W的形成/存在促使表面温度的降低额外增加。

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  • 来源
    《Corrosion science》 |2020年第5期|108560.1-108560.10|共10页
  • 作者

    Pan Xiaohui; Li Chong; Niu Yaran; Liu Tao; Lv Lin; Zhong Xin; Shi Minhao; Zheng Xuebin;

  • 作者单位

    Chinese Acad Sci Shanghai Inst Ceram Key Lab Inorgan Coating Mat CAS Shanghai 200050 Peoples R China|Univ Chinese Acad Sci Ctr Mat Sci & Optoelect Engn Beijing 100049 Peoples R China;

    Chinese Acad Sci Shanghai Inst Ceram Key Lab Inorgan Coating Mat CAS Shanghai 200050 Peoples R China|Univ Chinese Acad Sci Ctr Mat Sci & Optoelect Engn Beijing 100049 Peoples R China;

    Chinese Acad Sci Shanghai Inst Ceram Key Lab Inorgan Coating Mat CAS Shanghai 200050 Peoples R China;

    Chinese Acad Sci Shanghai Inst Ceram Key Lab Inorgan Coating Mat CAS Shanghai 200050 Peoples R China;

    Chinese Acad Sci Shanghai Inst Ceram Key Lab Inorgan Coating Mat CAS Shanghai 200050 Peoples R China|Univ Chinese Acad Sci Ctr Mat Sci & Optoelect Engn Beijing 100049 Peoples R China;

    Chinese Acad Sci Shanghai Inst Ceram Key Lab Inorgan Coating Mat CAS Shanghai 200050 Peoples R China;

    Chinese Acad Sci Shanghai Inst Ceram Key Lab Inorgan Coating Mat CAS Shanghai 200050 Peoples R China;

    Chinese Acad Sci Shanghai Inst Ceram Key Lab Inorgan Coating Mat CAS Shanghai 200050 Peoples R China;

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

    ZrB2-based composite coatings; Ablation resistance; Tungsten-containing additives; Oxidation;

    机译：ZRB2基复合涂层;消融抗性;含钨添加剂;氧化;

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