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The characterisation of alumina reinforced with carbon nanotube by the mechanical alloying method

机译：机械合金化法表征碳纳米管增强氧化铝

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摘要

The carbon nanotube possesses excellent electrical, mechanical and thermal properties. Therefore, it has been applied in a variety of fields. In this study, we added a carbon nanotube in Al2O3 to improve the characteristics. The composite of the carbon nanotube (1.5 wt-%), Al2O3 (phi = 20 nm), zirconia (90 g) and ethanol (20 mL), respectively, are dispersed by a planetary ball mill. The prepared powder was pressed under 14 MPa uniaxially after the composite was dried in an oven at 90 degrees C, and then the powder is pressed again by a cold isostatic press with 200 MPa. Then, reinforced alumina matrix composites with a carbon nanotube were sintered by a high temperature furnace at 1525 degrees C. As a result, at 200 rev min(-1), the hardness was increased from 14.36 to 23.57 Gpa as the duration was increased. It was increased also at 300 rev min(-1) from 22.75 to 28.24 GPa, respectively. Comparison by the rotational speed showed that the hardness at 300 rev min(-1) was measured to be higher than the hardness at 200 rev min(-1).
机译：碳纳米管具有出色的电，机械和热性能。因此，它已被应用于各种领域。在这项研究中，我们在Al2O3中添加了碳纳米管以改善其特性。碳纳米管（1.5 wt％），Al2O3（phi = 20 nm），氧化锆（90 g）和乙醇（20 mL）的复合物通过行星式球磨机分散。在将复合物在90℃的烘箱中干燥后，将制得的粉末在14MPa下单轴压制，然后通过200MPa的冷等静压机再次压制粉末。然后，将具有碳纳米管的增强氧化铝基复合材料在1525摄氏度的高温炉中烧结。结果，在200转/分钟（-1）下，硬度随着时间的延长而从14.36 Gpa增加到23.57 Gpa。它在300 rev min（-1）时也分别从22.75 GPa增加到28.24 GPa。通过旋转速度的比较显示，测得在300 rev min（-1）下的硬度高于在200 rev min（-1）下的硬度。

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  • 来源
    《Materials Research Innovations》 |2014年第3期|S3.12-S3.15|共4页
  • 作者

    Kim G. -N.; Bae G. -T.; Kim H. -J.; Choi B. -Y.; Noh J. -P.; Huh S. -C.;

  • 作者单位

    Gyeongsang Natl Univ, Grad Sch, Dept Mech & Precis Engn, Tongyeong, South Korea;

    Gyeongsang Natl Univ, Grad Sch, Dept Mech & Precis Engn, Tongyeong, South Korea;

    Gyeongsang Natl Univ, Grad Sch, Dept Mech & Precis Engn, Tongyeong, South Korea;

    Gyeongsang Natl Univ, Grad Sch, Dept Mech & Precis Engn, Tongyeong, South Korea;

    Gyeongsang Natl Univ, Dept Mech & Energy Engn, Tongyeong, South Korea;

    Gyeongsang Natl Univ, Dept Mech & Energy Engn, Tongyeong, South Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Planetary Ball Mill; Al2O3; Carbon nanotube; Sintering; Viker's hardness;

    机译：行星式球磨机;Al2O3;碳纳米管;烧结;维克硬度;

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