Ion exchange at a metal–ceramic interface

Raj, Rishi; Saha, Atanu; An, Linan; Hasselman, D. P. H.; Ernst, F.

doi:10.1016/s1359-6454(01)00418-9

Cited by 15 publications

(43 citation statements)

References 14 publications

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“…Raj et al have also shown that an ion exchange reaction between Al and spinel ceramic of (MgO)·(1.25Al 2 O 3 ) produces interdiffusion zones at the interface [105,106].…”

Section: Chemical Interactions At Metal/oxide Interfacesmentioning

confidence: 99%

Interaction of nanostructured metal overlayers with oxide surfaces

Wagner

2007

Surface Science Reports

712

651

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“…Raj et al have also shown that an ion exchange reaction between Al and spinel ceramic of (MgO)·(1.25Al 2 O 3 ) produces interdiffusion zones at the interface [105,106].…”

Section: Chemical Interactions At Metal/oxide Interfacesmentioning

confidence: 99%

Interaction of nanostructured metal overlayers with oxide surfaces

Wagner

2007

Surface Science Reports

712

651

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“…Hot rolling and hot isostatic pressing treatment can be performed to improve thermal conductivity as they improve the interfacial bonding and porosity of the composites. The decline in thermal conductivity value due to the finer SiC particle size is due to the fact that as particle size becomes small, there will be a large contribution of interface to thermal resistance [180,183] . The effect of SiC particle size distribution on the thermal conductivity of the Al matrix composite was studied by Molina et al [184] , where monomodal and bimodal size distributions of SiC particles were compared.…”

Section: Thermal Conductivitymentioning

confidence: 99%

The behaviour of aluminium matrix composites under thermal stresses

Dash

Sukumaran

Ray

2014

Science and Engineering of Composite Materials

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The present review work elaborates the behaviour of aluminium matrix composites (AMCs) under various kinds of thermal stresses. AMCs find a number of applications such as automobile brake systems, cryostats, microprocessor lids, space structures, rocket turbine housing, and fan exit guide vanes in gas turbine engines. These applications require operation at varying temperature conditions ranging from high to cryogenic temperatures. The main objective of this paper was to understand the behaviour of AMCs during thermal cycling, under induced thermal stresses and thermal fatigue. It also focuses on the various thermal properties of AMCs such as thermal conductivity and coefficient of thermal expansion (CTE). CTE mismatch between the reinforcement phase and the aluminium matrix results in the generation of residual thermal stress by virtue of fabrication. These thermal stresses increase with increasing volume fraction of the reinforcement and decrease with increasing interparticle spacing. Thermal cycling enhances plasticity at the interface, resulting in deformation at stresses much lower than their yield stress. Low and stable CTE can be achieved by increasing the volume fraction of the reinforcement. The thermal fatigue resistance of AMC can be increased by increasing the reinforcement volume fraction and decreasing the particle size. The thermal conductivity of AMCs decreases with increase in reinforcement volume fraction and porosity.

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“…They have high specific elastic modulus, high yield strength, reasonable ductility and very high resistance to creep at high temperatures. Raj et al showed [1] that an ion-exchange reaction takes place at the metal=ceramic interface of aluminium metal and magnesium aluminium spinel. The spinel particles were found to interact with the Al metal matrix at 640 C, according to the reaction 3 ½MgO½1:25Al 2 O 3 þ 2AlðmatrixÞ /À À À?…”

Section: Introductionmentioning

confidence: 99%

“…in which magnesium aluminate spinel exchanges Mg ions with aluminium metal, converting spinel into g -Al 2 O 3 , and releasing magnesium into the metal as a solid solution [1,2]. The ion exchange leads to a remarkable improvement in the creep resistance of the composite material.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Creep Resistance via Ion Exchange Processes in Al/Mgal₂O₄ Composites

Zuliani

Choudhury

Sbaizero

et al. 2010

Progress in Reaction Kinetics and Mechanism

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429 5. CREEP AND g -Al 2 O 3 NANOPARTICLES 434 6. CONCLUSIONS 438 7. ACKNOWLEDGEMENTS 439 8. REFERENCES 440 ABSTRACT Discontinuously reinforced aluminium (DRA) composites were prepared by a novel ion exchange process in which the reinforcing phase, aluminium oxide, was introduced by exchanging the magnesium ions in magnesium aluminate spinel with aluminium [1]. The exchange reaction occurs by the diffusion of magnesium and aluminium ions across the interface in opposite directions. The process led to the formation of DRA composites with a remarkable resistance to high

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Ion exchange at a metal–ceramic interface

Cited by 15 publications

References 14 publications

Interaction of nanostructured metal overlayers with oxide surfaces

Interaction of nanostructured metal overlayers with oxide surfaces

The behaviour of aluminium matrix composites under thermal stresses

Enhanced Creep Resistance via Ion Exchange Processes in Al/Mgal₂O₄ Composites

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Ion exchange at a metal–ceramic interface

Cited by 15 publications

References 14 publications

Interaction of nanostructured metal overlayers with oxide surfaces

Interaction of nanostructured metal overlayers with oxide surfaces

The behaviour of aluminium matrix composites under thermal stresses

Enhanced Creep Resistance via Ion Exchange Processes in Al/Mgal2O4 Composites

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Enhanced Creep Resistance via Ion Exchange Processes in Al/Mgal₂O₄ Composites