The Influence of Milling Time and Multiwall Carbon Nanotubes Concentrations on the Thermal-Structural Behavior of Iron–Copper Nanocomposites
摘要
In this work we aim to study the effect of incorporating different concentrations of multiwalled carbon nanotubes into Iron–Copper—Fe–Cu with a ratio of 4:1; MWCNTs of 0.5, 1 and 2% in volume—nanocomposites—prepared via high-energy ball milling of different grinding times of 1 and 2 h, respectively—on the thermal and structural properties. The characterization conducted was heat flow, weight change, relative linear expansion (∆L/L0) and coefficient of thermal expansion (CTE) for the thermal behavior, whereas for the structural changes and assessments, x-ray diffraction, and Raman spectroscopy were applied.