Size effects in the particle-reinforced metal-matrix composites

Chen, S. H.; Wang, T. C.

doi:10.1007/bf01182158

Cited by 62 publications

(29 citation statements)

References 34 publications

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“…Amongst them, powder metallurgy route is used to develop better MMNC products with improved overall homogeneity [8]. Apart from the processing technique, another important factor which plays a vital role is the size and morphology of the powder particles [9,10]. Literature reports large number of investigations on phase and microstructure of aluminum, magnesium, and copper as the matrix phase material but unfortunately no systematic attempt has been made to study phase, microstructure, electrical and mechanical properties of iron based composites [11].…”

Section: Introductionmentioning

confidence: 99%

Effect of Sintering Mechanism on the Properties of ZrO₂ Reinforced Fe Metal Matrix Nanocomposite

Jha

Gupta

Kumar

2015

Journal of Composites

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The present paper reports phase, microstructure, and compressive strength of ZrO 2 reinforced Fe Metal Matrix Nanocomposites (MMNCs) synthesized by powder metallurgy (P/M) technique. High purity grade iron metal powder was mixed with varying percentage of zirconium dioxide (5-30 wt%), compacted, and sintered in argon atmosphere in the temperature range of 900-1100 ∘ C for 1 to 3 hours. X-ray diffraction (XRD) analysis of specimens was done in order to study the phases present and scanning electron microscopy was carried out to determine the morphology and grain size of the various constituents. XRD result shows the presence of Fe, ZrO 2 , and Zr 6 Fe 3 O phase. Zr 6 Fe 3 O phase forms due to reactive sintering and is not reported earlier by researchers throughout the globe. SEM results showed the presence of dense microstructure with the presence of Fe, ZrO 2 , and some nanosize Zr 6 Fe 3 O phases.

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Section: Introductionmentioning

confidence: 99%

Effect of Sintering Mechanism on the Properties of ZrO₂ Reinforced Fe Metal Matrix Nanocomposite

Jha

Gupta

Kumar

2015

Journal of Composites

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“…To a large extent, the compaction of powder particles and sintering conditions decide the properties of MMNC so formed. Another important factor which plays an important role in determining the properties of MMNCs is the particles size and particles size distribution [5,6]. A considerable amount of research work has already been done on various technological aspects of MMNC using aluminum, copper, and magnesium as matrices [7,8].…”

Section: Introductionmentioning

confidence: 99%

Sintering and Hardness Behavior of Fe-Al₂O₃ Metal Matrix Nanocomposites Prepared by Powder Metallurgy

Gupta

Kumar

Jha

2014

Journal of Composites

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The present paper reports the investigations on sintering and hardness behavior of Fe-Al 2 O 3 Metal Matrix Nanocomposites (MMNCs) prepared by Powder Metallurgy (P/M) route with varying concentration of Al 2 O 3 (5-30 wt%). The MMNC specimens for the present investigations were synthesized by ball milling, followed by compaction and sintering in an inert atmosphere in the temperature range of 900-1100 ∘ C for 1-3 hours using Powder Metallurgy route. Phase and microstructures of the specimens were characterized by XRD and SEM. Reactive sintering takes place in these materials. During sintering nano iron aluminate (FeAl 2 O 4 ) phase forms. Characterization was done by measuring density and hardness. Results have been discussed critically to illustrate the effect of various processing parameters on sintering and mechanical behavior. It is expected that the results of these investigations will be useful in developing Metal Matrix Nanocomposites (MMNCs) for typical industrial applications.

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“…Chen et al [56]; Huang et al [37]; Nix and Gao [57]; Saha et al [12]; Wei and Hutchinson [58]; Xue et al [59]) as well as the composite material experiments (e.g. Chen and Wang [60]; Fleck and Hutchinson [29]; Shu and Fleck [61]; Wei [62]; Liu and Hu [63]). …”

Section: Introductionmentioning

confidence: 99%

Size effect in micro-scale cantilever beam bending

Chen

Feng

2011

Acta Mech

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When the thickness of metallic cantilever beams reduces to the order of micron, a strong size effect of mechanical behavior has been found. In order to explain the size effect in a micro-cantilever beam, the couple-stress theory (Fleck and Hutchinson, J Mech Phys Solids 41:1825-1857, 1993) and the C-W strain gradient theory (Chen and Wang, Acta Mater 48:3997-4005, 2000) are used with the help of the BernoulliEuler beam model. The cantilever beam is considered as the linear elastic and rigid-plastic one, respectively. Analytical results of the cantilever beam deflection under strain gradient effects by applying these two kinds of theories are obtained, from which we find an explicit relationship between the intrinsic lengths introduced in the two kinds of theories. The theoretical results are further used to analyze the experimental observations, and predictions by both theories are further compared. The results in the present paper should be useful for the design of micro-cantilever beams in MEMS and NEMS.

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Size effects in the particle-reinforced metal-matrix composites

Cited by 62 publications

References 34 publications

Effect of Sintering Mechanism on the Properties of ZrO₂ Reinforced Fe Metal Matrix Nanocomposite

Effect of Sintering Mechanism on the Properties of ZrO₂ Reinforced Fe Metal Matrix Nanocomposite

Sintering and Hardness Behavior of Fe-Al₂O₃ Metal Matrix Nanocomposites Prepared by Powder Metallurgy

Size effect in micro-scale cantilever beam bending

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Size effects in the particle-reinforced metal-matrix composites

Cited by 62 publications

References 34 publications

Effect of Sintering Mechanism on the Properties of ZrO2 Reinforced Fe Metal Matrix Nanocomposite

Effect of Sintering Mechanism on the Properties of ZrO2 Reinforced Fe Metal Matrix Nanocomposite

Sintering and Hardness Behavior of Fe-Al2O3 Metal Matrix Nanocomposites Prepared by Powder Metallurgy

Size effect in micro-scale cantilever beam bending

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Effect of Sintering Mechanism on the Properties of ZrO₂ Reinforced Fe Metal Matrix Nanocomposite

Effect of Sintering Mechanism on the Properties of ZrO₂ Reinforced Fe Metal Matrix Nanocomposite

Sintering and Hardness Behavior of Fe-Al₂O₃ Metal Matrix Nanocomposites Prepared by Powder Metallurgy