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首页> 外文期刊>Journal of Materials Science >Fabrication of Ti2AIC by hot pressing of Ti, TiC, Al and active carbon powder mixtures
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Fabrication of Ti2AIC by hot pressing of Ti, TiC, Al and active carbon powder mixtures

机译：Ti，TiC，Al和活性炭粉末混合物的热压制备Ti2 AIC

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摘要

Polycrystalline Ti2AlC samples were synthesized by hot pressing of Ti, Al, TiC and active carbon powder mixtures. X-ray diffraction (XRD) and scanning electron microscope (SEM) were used for phase identification and microstructure evaluation. No other phase except Ti2AlC was detected in samples synthesized by hot pressing of the 0.5TiC/1.5Ti/1.0Al/0.5C powder mixtures at 1400°C for 1 and 3 h under a pressure of 30 MPa. The densities of these two samples were 96.1 and 98% of the theoretical value of pure Ti2AlC, respectively. The reason that the densities of these two samples were lower than the theoretical density of pure Ti2AlC is that pore existed in these two samples. At lower temperature of 1300°C, the speed of the reaction forming Ti2AlC was slow. While at higher temperature of 1500°C, Ti2AlC transformed to Ti3AlC2. So these two temperatures are not suitable for the fabrication of Ti2AlC.
机译：通过热压Ti，Al，TiC和活性炭粉末混合物，合成了多晶Ti2 AlC样品。 X射线衍射（XRD）和扫描电子显微镜（SEM）被用于相识别和微观结构评估。在0.5MPa / 1.5Ti / 1.0Al / 0.5C粉末混合物在1400°C，30 MPa的压力下热压合成的样品中，未检测到Ti2AlC以外的其他相。这两个样品的密度分别为纯Ti2 AlC理论值的96.1和98％。这两个样品的密度低于纯Ti2 AlC的理论密度的原因是这两个样品中存在孔。在1300℃的较低温度下，生成Ti2 AlC的反应速度很慢。在较高的1500°C温度下，Ti2 AlC转变为Ti3 AlC2 。因此，这两个温度都不适合制备Ti2 AlC。

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  • 来源
    《Journal of Materials Science》 |2004年第5期|1589-1592|共4页
  • 作者

    Xiaolin Hong; Bingchu Mei; Jiaoqun Zhu; Weibing Zhou;

  • 作者单位

    State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology;

    State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology;

    State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology;

    State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology;

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