Publications by authors named "Zhiai Shi"
Article Synopsis
- * By introducing 30 vol.% large AZ61 particles as a soft phase into a matrix reinforced with Ni-coated CNTs, researchers created a hierarchical composite that significantly improved fracture strain by 54% and compressive strength by 8% compared to traditional composites.
- * The improved properties are attributed to the combined effects of the hard phase bearing load and the soft phase providing ductility, while increased CNT content enhances the strength but leads to reduced fracture strain due to stress concentration and agglomeration issues.
Carbon nanotubes (CNTs) reinforced magnesium matrix composites have great application potential in the transportation industry, but the low absolute strength is the main obstacle to its application. In this paper, copper-coated CNTs and AZ61 powder were used as raw materials to prepare CNTs/refined-AZ61 composites with good interfacial bonding, uniformly dispersed CNTs and fine grains by the process of ball milling refinement of AZ61 powder, ball milling dispersion and hot-pressing sintering. When the volume fraction of CNTs is less than or equal to 1 vol.
View Article and Find Full Text PDFHot Oscillatory Pressing of Carbon Nanotube-Reinforced Copper Matrix Nanocomposite.
Nanomaterials (Basel)
September 2021
Carbon nanotube reinforced copper matrix nanocomposites have great potential in machinery, microelectronics, and other applications. The materials are usually prepared by powder metallurgy processes, in which consolidation is a key step for high performance. To improve the density and mechanical properties, the authors explored the use of hot oscillatory pressing (HOP) to prepare this material.
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