Effect of addition of fly ash and carbon nanotubes in aluminium metal matrix produced by powder metallurgy

INTERNATIONAL CONFERENCE ON MATERIALS, MANUFACTURING AND MACHINING 2019 Pub Date : 2019-07-23 DOI:10.1063/1.5117921

Udaya Devadiga, Sunil Shetty, P. Fernandes

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Abstract

In this paper, pure aluminium metal matrix composite was fabricated using powder metallurgy, where MWCNT and fly ash used as reinforcing materials. The density and hardness of specimen were calculated and influence of fly ash and MWCNTs on them was discussed. Compression strength of the composites was measured by compression test. It was observed that hardness had increasing effect for certain weight percentage of Fly ash and above that level showed the negative effect on them. The increased ball milling time resulted in well dispersion of the reinforcements. Compressive strength test revealed that addition of MWCNT along with fly ash was resulted in the improvement of the strength of the composite compared to pure Al.In this paper, pure aluminium metal matrix composite was fabricated using powder metallurgy, where MWCNT and fly ash used as reinforcing materials. The density and hardness of specimen were calculated and influence of fly ash and MWCNTs on them was discussed. Compression strength of the composites was measured by compression test. It was observed that hardness had increasing effect for certain weight percentage of Fly ash and above that level showed the negative effect on them. The increased ball milling time resulted in well dispersion of the reinforcements. Compressive strength test revealed that addition of MWCNT along with fly ash was resulted in the improvement of the strength of the composite compared to pure Al.

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粉煤灰和碳纳米管对粉末冶金铝金属基体的影响

以MWCNT和粉煤灰为增强材料，采用粉末冶金法制备了纯铝金属基复合材料。计算了试样的密度和硬度，讨论了粉煤灰和MWCNTs对其的影响。通过压缩试验测定了复合材料的抗压强度。结果表明，当粉煤灰掺量达到一定重量百分比时，硬度有增加作用，超过一定重量百分比时，硬度呈负作用。随着球磨时间的延长，增强剂的分散性较好。抗压强度试验表明，与纯铝相比，添加MWCNT和粉煤灰可以提高复合材料的强度。本文以MWCNT和粉煤灰为增强材料，采用粉末冶金法制备了纯铝金属基复合材料。计算了试样的密度和硬度，讨论了粉煤灰和MWCNTs对其的影响。通过压缩试验测定了复合材料的抗压强度。结果表明，当粉煤灰掺量达到一定重量百分比时，硬度有增加作用，超过一定重量百分比时，硬度呈负作用。随着球磨时间的延长，增强剂的分散性较好。抗压强度试验结果表明，粉煤灰掺入MWCNT后，复合材料的抗压强度明显高于纯铝。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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INTERNATIONAL CONFERENCE ON MATERIALS, MANUFACTURING AND MACHINING 2019

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