球磨法制备的多壁碳纳米管颗粒增强铝基纳米复合材料的纳米力学行为

Nanomechanical Behavior of Multi-Walled Carbon Nanotubes Particulate Reinforced Aluminum Nanocomposites Prepared by Ball Milling.

作者信息

Ostovan Farhad, Matori Khamirul Amin, Toozandehjani Meysam, Oskoueian Arshin, Yusoff Hamdan Mohamed, Yunus Robiah, Mohamed Ariff Azmah Hanim

机构信息

Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, 43400 Serdang, Malaysia.

Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Malaysia.

出版信息

Materials (Basel). 2016 Feb 26;9(3):140. doi: 10.3390/ma9030140.

DOI:10.3390/ma9030140

PMID:28773261

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5456694/

Abstract

The nanomechanical properties of carbon nanotubes particulate-reinforced aluminum matrix nanocomposites (Al-CNTs) have been characterized using nanoindentation. Bulk nanocomposite specimens containing 2 wt % multiwalled CNTs (MWCNTs) were synthesized by a combination of ball milling and powder metallurgy route. It has been tried to understand the correlation between microstructural evolution particularly carbon nanotubes (CNTs) dispersion during milling and mechanical properties of Al-2 wt % nanocomposites. Maximum enhancement of +23% and +44% has been found in Young's modulus and hardness respectively, owing to well homogenous dispersion of CNTs within the aluminum matrix at longer milling time.

摘要

采用纳米压痕技术对碳纳米管颗粒增强铝基纳米复合材料（Al-CNTs）的纳米力学性能进行了表征。通过球磨和粉末冶金相结合的方法合成了含有2 wt%多壁碳纳米管（MWCNTs）的块状纳米复合材料试样。试图了解微观结构演变，特别是球磨过程中碳纳米管（CNTs）的分散与Al-2 wt%纳米复合材料力学性能之间的关系。由于在较长的球磨时间下碳纳米管在铝基体中均匀分散，发现杨氏模量和硬度分别最大提高了23%和44%。