Improvement of interface and mechanical properties in carbon nanotube reinforced Cu–Cr matrix composites

► Cr is used to improve the interfacial bonding of CNT/Cu composites. ► The addition of Cr greatly enhances the interfacial bonding of CNT/Cu composites. ► The addition of Cr greatly enhances the strength of CNT/Cu composites. An effective approach is utilized to establish a strong interface between...

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Bibliographic Details
Published inMaterials in engineering Vol. 45; pp. 407 - 411
Main Authors Chu, Ke, Jia, Cheng-chang, Jiang, Li-kun, Li, Wen-sheng
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.03.2013
Subjects
BONDING
CARBON BASE MATERIALS
Carbon nanotubes
Chromium
CHROMIUM COPPERS
Copper
Copper base alloys
HARDNESS
Interface
MECHANICAL PROPERTIES
Metal–matrix composites
Microstructure
MICROSTRUCTURES
PROPERTIES
Transition layers
TUBE
Carbon nanotubes
Metal–matrix composites
Mechanical properties
Interface
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Summary:► Cr is used to improve the interfacial bonding of CNT/Cu composites. ► The addition of Cr greatly enhances the interfacial bonding of CNT/Cu composites. ► The addition of Cr greatly enhances the strength of CNT/Cu composites. An effective approach is utilized to establish a strong interface between the carbon nanotube (CNT) and the Cu matrix by introducing the matrix-alloying chromium (Cr) element. The interface microstructure and mechanical properties of the composites are characterized by high-resolution transmission electron microscopy (HRTEM), hardness and tensile tests, respectively. Compared to CNT/Cu composites, CNT/CNT–Cr composites show evenly improved interfacial bonding and enhanced mechanical properties, which is ascribed to the formation of thin intermediate Cr3C2 transition layer between CNTs and Cu–Cr matrix.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0261-3069
DOI:10.1016/j.matdes.2012.09.027