Effect of the Ball Milling on the Microstructure and Mechanical Properties of AlN/Cu Composite

Qian Yu; Mei Hui Song; Yan Li; Xiao Chen Zhang

doi:10.4028/www.scientific.net/MSF.816.15

Paper Titles

Preface

Surface Pretreatment and Fabrication Technology of Woven Carbon Fiber Cloth Aluminium Alloy Matrix Composite
p.3

Improvement of Anti-Hydrolytic Property of AlN Powder Modified by the Rare-Earth Salts
p.9

Effect of the Ball Milling on the Microstructure and Mechanical Properties of AlN/Cu Composite
p.15

Effect of Sr and La on the In Situ A356-TiB₂ Composite Fabricated via Remelting and Diluting Approach
p.21

Microstructures and Mechanical Properties of Three-Dimensional Braided Carbon Fiber Reinforced Mullite Composites with Different Sols as Raw Materials
p.27

Influences of Thermal Molding Process on the Flexural Properties of SiC/SiC Composites with a New Precursor Polymer
p.33

Microstructure, Mechanical and Dielectric Properties of Si₃N₄-BN Composites with Different Porosities
p.40

Preparation of Al₂O₃/Al-Si Composites by In Situ Reaction of Fe₂O₃+MnO₂/Al System
p.48

HomeMaterials Science ForumMaterials Science Forum Vol. 816Effect of the Ball Milling on the Microstructure...

Effect of the Ball Milling on the Microstructure and Mechanical Properties of AlN/Cu Composite

Abstract:

AlN/Cu composite powder was prepared by ball milling method. Laser particle size analyzer, X-ray diffraction and scanning electron microscopy analysis were performed to study AlN/Cu composite powders. The effects of rotation speed, mixing time, and ball to powder weight ratio (BPR) on the particle size distribution, composition, and morphology were investigated. Results showed that the best ball milling parameters were the rotation speed of 200r/min, mixing time of 6 hours and BPR 10:1. In this best condition, AlN/Cu composite powders would be obtained with optimum particle size distribution and morphology. Then composite powders were pressed at 500MPa and sintered at 1000°C in N₂ atmosphere. Finally, the composite with an AlN content of 33wt% showed the bending strength of 370MPa, Vikers hardness HV154, thermal conductivity of 182.7W/m°C and electrical conductivity of 3.08MS/m. However, the composite with an AlN content of 25wt% showed the bending strength of 329MPa, Vikers hardness HV122, thermal conductivity of 195W/m°C and electrical conductivity of 6.54MS/m.

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Periodical:

Materials Science Forum (Volume 816)

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15-20

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https://doi.org/10.4028/www.scientific.net/MSF.816.15

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Online since:

April 2015

Authors:

Qian Yu, Mei Hui Song*, Yan Li, Xiao Chen Zhang

Keywords:

AlN/Cu Composite, AlN/Cu Composite Powder, Ball Milling, Milling Parameters

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