Microstructure and properties of tetrapod-like ZnO whiskers reinforced Al matrix composite

Guo, Zhixing; Xiong, Ji; Yang, Mei; Li, Wei

doi:10.1016/j.jallcom.2007.06.099

Cited by 32 publications

(20 citation statements)

References 16 publications

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“…Aluminum alloy-based composites containing 10wt% alumina (size range: 150-225 mm) were prepared by liquid metallurgy technique using the vortex method [8,9]. The ZnO whiskers 25 vol% reinforced with Al-matrix composites were fabricated by a squeeze casting process [10]. The quartz-silicon dioxide particulates reinforced LM6 alloy matrix composites were fabricated by carbon dioxide sand molding process [11].…”

Section: Introductionmentioning

confidence: 99%

An Analysis of Mechanical Properties of the Developed Al/SiC-MMC’s

Meena¹,

Manna²,

Banwait³

et al. 2013

AJME

113

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Metal Matrix Composites (MMC's) have evoked a keen interest in recent times for potential applications. Advance composite materials like Al/SiC metal matrix composite is gradually becoming very important materials in manufacturing industries e.g. aerospace, automotive and automobile industries due to their superior properties such as light weight, low density, high strength to weight ratio, high hardness, high temperature and thermal shock resistance, superior wear and corrosive resistance, high specific modulus, high fatigue strength etc. In this study aluminum (Al-6063)/SiC Silicon carbide reinforced particles metal-matrix composites (MMCs) are fabricated by melt-stirring technique. The MMCs bars and circular plates are prepared with varying the reinforced particles by weight fraction ranging from 5%, 10%, 15%, and 20%. The average reinforced particles size of SiC are 220 mesh, 300 mesh, 400 mesh respectively. The stirring process was carried out at 200 rev/min rotating speed by graphite impeller for 15 min. The microstructure and mechanical properties like Proportionality (MPa) limit, Tensile strength upper yield point (MPa), Tensile strength lower yield point (MPa), Ultimate tensile strength (MPa), Breaking strength(MPa), % Elongation, % Reduction in area, Hardness (HRB), Density (gm/cc), Impact Strength (N.m) are investigated on prepared specimens of MMCs. It was observed that the hardness of the composite is increased with increasing of reinforced particle weight fraction. The tensile strength and impact strength both are increased with rising of reinforced weight fraction. Different mechanical tests were conducted and presented by varying the particle size and weight fractions of SiC.

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Section: Introductionmentioning

confidence: 99%

An Analysis of Mechanical Properties of the Developed Al/SiC-MMC’s

Meena¹,

Manna²,

Banwait³

et al. 2013

AJME

113

View full text Add to dashboard Cite

show abstract

“…In our previous works, we selected ZnO w as the second phase to adjust both the electrical and the mechanical properties of piezoelectric composites [44][45][46][47]. Due to the high-temperature strength, rigidity and chemical stability, ZnO w have been a subject of intensive research as reinforced composite materials [48,49]. Among them, a variety of reinforcements with different morphologies have 0925-8388/$ -see front matter © 2010 Elsevier B.V. All rights reserved.…”

Section: Introductionmentioning

confidence: 99%

Effect of ZnO whisker content on sinterability and fracture behaviour of PZT peizoelectric composites

Yuan

Wang

Lin

et al. 2010

Journal of Alloys and Compounds

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“…Mechanical properties of silicon carbide particulate dispersed composites were investigated [9] and it was found that due to the addition of silicon carbide particulates, hardness and sliding wear resistance properties were improved. Microstructure and properties of zinc oxide whiskers reinforced aluminium based composites were investigated [10]. The obtained results revealed that composite properties were greatly influenced by the reinforced zinc oxide.…”

Section: Introductionmentioning

confidence: 99%

Effect of Sintering Temperature on the Properties of Aluminium-Aluminium Oxide Composite Materials

Nuruzzaman

Kamaruzaman

Azmi

2016

IJEMM

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In this study, aluminium-aluminium oxide (Al-Al2O3) metal matrix composites of different weight percentage reinforcements of aluminium oxide were processed at different sintering temperatures. In order to prepare these composite specimens, conventional powder metallurgy (PM) method was used. Three types specimens of different compositions such as 95%Al+5%Al2O3, 90%Al+10%Al2O3 and 85%Al+15%Al2O3 were prepared under 20 ton compaction load. Then, all the specimens were sintered in a furnace at two different temperatures 550 o C and 580 o C. In each sintering process, two different heating cycles were used. After the sintering process, it was observed that undistorted flat specimens were successfully prepared for all the compositions. The effects of sintering temperature and weight fraction of aluminium oxide particulates on the density, hardness and microstructure of Al-Al2O3 composites were observed. It was found that density and hardness of the composite specimens were significantly influenced by sintering temperature and percentage aluminium oxide reinforcement. Furthermore, optical microscopy revealed that almost uniform distribution of aluminium oxide reinforcement within the aluminium matrix was achieved.Keywords: Aluminium-Aluminium Oxide, Metal Matrix Composite, Density, Hardness, Microstructure 1. INTRODUCTION In recent years, particle reinforced metal matrix composites (MMCs) are gaining popularity for advanced applications. Generally, in processing of a metal matrix composite, a soft metal with high ductility and toughness is reinforced by a hard ceramic material with high strength and modulus. These metal-ceramic composites are capable of multiple functions in diverse engineering fields. For structural applications, aluminium based metal matrix composites have significant potential due to their high stiffness, modulus, specific strength, corrosion and wear resistance. In the development of these MMCs, substantial progress has been achieved so that these composites can be used for potential applications such as in automotive and aerospace industries. Researchers reported that these metal matrix composites are suitable for high performance structures and showed improved properties over conventional metals and alloys [1][2][3][4].Friction and wear behaviors of A359-20 vol% SiC particle composites slid against automobile friction material were experimentally investigated [5]. It was found that the wear resistance of the composites was greatly related to the strength and hardness of the SiC particles. Fatigue lives of aluminium alloy-alumina silicate particulate composites were investigated [6] and it was found that these composites showed longer fatigue lives in lower stress state than the unreinforced aluminium alloy whereas at elevated stress state, these composites exhibited reduced fatigue lives regardless of the reinforcement fractions. The properties of MMCs depend on many factors such as different properties of matrix material, size, shape, hardness, volume fraction and distribution of the re...

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Microstructure and properties of tetrapod-like ZnO whiskers reinforced Al matrix composite

Cited by 32 publications

References 16 publications

An Analysis of Mechanical Properties of the Developed Al/SiC-MMC’s

An Analysis of Mechanical Properties of the Developed Al/SiC-MMC’s

Effect of ZnO whisker content on sinterability and fracture behaviour of PZT peizoelectric composites

Effect of Sintering Temperature on the Properties of Aluminium-Aluminium Oxide Composite Materials

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