Synthesis and characterization of copper–alumina metal matrix composite by conventional and spark plasma sintering

Dash, K.; Ray, Bankim Chandra; Chaira, D.

doi:10.1016/j.jallcom.2011.11.136

Cited by 91 publications

(35 citation statements)

References 29 publications

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“…Also, they clarified that the friction and wear behavior of Al-CNT composites is largely influenced by the applied load and there exists a critical load beyond which CNTs could have a negative impact on the wear resistance of aluminum alloy. [60]. Microcomposites sintered in hydrogen showed higher hardness than those sintered in nitrogen.…”

Section: Spark-plasma-sintered Metal Matrix Nanocompositesmentioning

confidence: 95%

Spark Plasma Sintering of Metals and Metal Matrix Nanocomposites: A Review

Saheb

Iqbal

Khalil

et al. 2012

Journal of Nanomaterials

295

128

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Metal matrix nanocomposites (MMNCs) are those metal matrix composites where the reinforcement is of nanometer dimensions, typically less than 100 nm in size. Also, it is possible to have both the matrix and reinforcement phases of nanometer dimensions. The improvement in mechanical properties of MMNCs is attributed to the size and strength of the reinforcement as well as to the fine grain size of the matrix. Spark plasma sintering has been used extensively over the past years to consolidate wide range of materials including nanocomposites and was shown to be effective noneconventional sintering method for obtaining fully dense materials with preserved nanostructure features. The objective of this work is to briefly present the spark plasma sintering process and review published work on spark-plasma-sintered metals and metal matrix nanocomposites.

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Section: Spark-plasma-sintered Metal Matrix Nanocompositesmentioning

confidence: 95%

Spark Plasma Sintering of Metals and Metal Matrix Nanocomposites: A Review

Saheb

Iqbal

Khalil

et al. 2012

Journal of Nanomaterials

295

128

View full text Add to dashboard Cite

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“…Powder metallurgy is usually employed to produce small sized copper-based parts that are used in electrical switches, contacter components, connectors, heatsinks, and brushes and is widely used in electronic packaging industry [15,[27][28][29][30][31]. It is highly possible to produce components from Cu-Ti alloys through a powder metallurgical route.…”

mentioning

confidence: 99%

Characterization of Cu–Ti powder metallurgical materials

Karakulak

2017

Int J Miner Metall Mater

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Powder metallurgical Cu-Ti alloys with different titanium additions produced by hot pressing were characterizied by optical microscopy, scanning electron microscopy, X-ray diffraction analysis, and hardness, wear and bending tests. The addition of titanium to copper caused the formation of different intermetallic layers around the titanium particles. The titanium content of the intermetallics decreased from the center of the particle to the copper matrix. The hardness, wear resistance and bending strength of the materials increased with increasing Ti content, whereas strain in bending test decreased. Worn surface analyses showed that different wear mechanisms were active during the wear tests of specimens with different chemical compositions. Changes in properties of materials with titanium addition were explained by high hardness of different Cu-Ti intermetallic phases.

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“…2,3 There will also be some residual stresses due to the variation of the thermal expansion coefficient (tensile in copper and compression in alumina) at the interface being setup due to cooling of the composites after infiltration. 4,5 Research focus has been given to this interesting fact, as it greatly affects the mechanical and thermal behaviours of copper-alumina composites. Research into rapidly solidified and mechanically alloyed copper-based composites has given significant results and so the chances of using them in marine and some other floating vessels have increased.…”

Section: Introductionmentioning

confidence: 99%

Variations in the properties of copper-alumina nanocomposites synthesized by mechanical alloying

Rajeshkumar¹,

Amirthagadeswaran²

2019

Mater. Tehnol.

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Industries use metal-matrix composites all year round, where the alloying of metals plays an important role. Many researchers have seen that an improvement in the alloying of metals possesses a great value in applications. So metal-matrix composites are being investigated for better blending of the particles for the metal constituents. This guides researchers towards the addition of many alloying elements or reinforcements to form superior-quality MMCs with smaller particle sizes. In this regard, the focus of the present work is to reinforce alumina with copper synthesized and blended using a high-energy ball milling. The powders were compressed by cold compaction at a pressure of 174 MPa and sintered at 950°C. Separate green compacts were formed from each of the powders that were milled for different time periods, such as (3, 6, 9, 12, 15) h. X-Ray diffraction (XRD) and scanning electron microscopy (SEM) were used to determine the particle size of the powders and the dominant processes during the milling, respectively. The wear and corrosion behaviours of each specimen were investigated in accordance with the ASTM G99-17 and ASTM G44-99 standards, respectively. The results clearly show that as the particle sizes of the powders reduce, the wear and corrosion rates decrease. The properties were found to be the best for the compacts formed from powders milled for 12 h.

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Synthesis and characterization of copper–alumina metal matrix composite by conventional and spark plasma sintering

Cited by 91 publications

References 29 publications

Spark Plasma Sintering of Metals and Metal Matrix Nanocomposites: A Review

Spark Plasma Sintering of Metals and Metal Matrix Nanocomposites: A Review

Characterization of Cu–Ti powder metallurgical materials

Variations in the properties of copper-alumina nanocomposites synthesized by mechanical alloying

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