Niobium Carbide-Reinforced Al Matrix Composites Produced by High-Energy Ball Milling

2017 ◽  
Vol 48 (3) ◽  
pp. 1754-1762 ◽  
Author(s):  
Dilermando Nagle Travessa ◽  
Marina Judice Silva ◽  
Kátia Regina Cardoso
2011 ◽  
Vol 236-238 ◽  
pp. 2336-2339 ◽  
Author(s):  
Xiao Fei Wang ◽  
Xiao Lan Cai

In this paper, carbon nanotubes (CNT)-reinforced aluminum (Al) matrix composites were fabricated by High-Energy Ball Milling, the objective was to investigate the evolvement of particle size, density and hardness of CNT-Al composites with increasing wt% CNT, and analyzed the micrographs of mixture powders at different milling time. The results showed that the addition of CNT can play a role of grinding aid to refine grain, improve the hardness and decrease the density, and CNT can be homogeneous dispersed in the matrix with increasing ball-milling time, it also showed that too much CNT was no help on hardness, this attributed to clustering of CNT, the proper addition of CNT was 2wt%, and the mixture powders could reached a state of equilibrium between fracturing and cold-welding at 75min.


2010 ◽  
Vol 150-151 ◽  
pp. 1163-1166 ◽  
Author(s):  
Xiao Fei Wang ◽  
Xiao Lan Cai

CNT-reinforced aluminum matrix composites was produced by high-energy ball milling, the effect of rotary speed and milling time on the particle size distribution,the density and hardness of CNT-aluminum matrix composites were studied,it was observed that the rotary speed and milling time have an important effect on the mechanical properties of the CNT-aluminum matrix composites.


2015 ◽  
Vol 68 (3) ◽  
pp. 295-300 ◽  
Author(s):  
Bruna Horta Bastos Kuffner ◽  
Wellington Silvio Diogo ◽  
Daniel Assis Amancio ◽  
Geovani Rodrigues ◽  
Gilbert Silva

2017 ◽  
Vol 899 ◽  
pp. 25-30
Author(s):  
Oscar Olimpio de Araújo Filho ◽  
Everthon Rodrigues de Araújo ◽  
Heronilton Mendes de Lira ◽  
Cezar Henrique Gonzalez ◽  
Noelle D’emery Gomes Silva ◽  
...  

Aluminum alloy metal matrix composites are a class of materials object of large and intensive research during the last years. In this study an AA2124 aluminum alloy were processed by means of mechanical alloying added by 10, 20 and 20 percent of silicon carbide (SiC) in vibratory SPEX type mill during 60 and 120 minutes. After this the composites powders obtained were characterized by means of Scanning Electron Microscopy (SEM) plus Energy Dispersive Spectroscopy (EDS) to determine the powders morphology. In order to consolidate the AA2124 aluminum alloy composites reinforced by silicon carbide (SiC) composites, the powders processed by high energy ball milling technique were hot extruded and the billets were characterized by SEM to determine the microstructure and the distribution of the reinforced ceramic phase of silicon carbide throughout the aluminum matrix and at last the microhardiness Vickers technique were used to evaluate the mechanical properties.


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