Innovative packaging solution for power and thermal management of wide-bandgap semiconductor devices in space applications

Bárcena, J.; Maudes, Jon; Vellvehı́, M.; Jordà, X.; Obieta, Isabel; Guraya, C.; Bilbao, Leire; Jiménez, C.; Merveille, C.; Coleto, J.

doi:10.1016/j.actaastro.2008.01.010

Cited by 21 publications

(8 citation statements)

References 3 publications

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“…Thus, they have attracted a considerable amount of attention lately due to their signicant scientic, technological and commercial importance. Increasingly, MMCs are being used to replace conventional materials in many applications, especially in the aviation, transportation, electronics, and sport industries [1,2], owing to the increasing performance requirements in these industries. Following the development of science and technology, discontinuously reinforced aluminium alloy matrix composites have become one of the focuses of research and practical applications in the structural composites eld.…”

Section: Introductionmentioning

confidence: 99%

Dry Sliding Wear Behavior of Al₂O₃/SiC Particle Reinforced Aluminium Based MMCs Fabricated by Stir Casting Method

2013

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Al2O3/SiC particulate reinforced metal matrix composites were produced by a stir casting process. The Al2O3/SiC powder mix was prepared by reaction of aqueous solution of aluminium sulphate, ammonium sulphate and water containing SiC particles at 1200• C. 10 wt% of this hybrid ceramic powder with dierent sized SiC particles was added to a liquid matrix alloy during a mechanical stirring between solidus and liquidus under inert conditions. Dry sliding wear tests were conducted with a pin-on-disk friction and wear tester. The morphologies of the worn surfaces were examined using a scanning electron microscope to observe the wear characteristics and investigate the wear mechanism. An optical microscope was used to examine the precipitations of the hybrid ceramic reinforced metal matrix composites after wear tests at room temperature under dry conditions. It was found that hybrid and bimodal particle reinforcement decreased weight loss especially when SiC powder with larger grain size was used. Microstructural examination showed that besides occurring coarse SiC particle reinforcement, a ne alumina particle reinforcement phase was observed within the aluminium matrix (A332). The improvement in wear resistance of the hybrid ceramic reinforced metal matrix composites could be attributed to the ability of the larger SiC particles to carry a greater portion of the applied load, as well as to the function of the larger SiC particles in protecting the smaller alumina particles from being gouged out during the wear process. Furthermore, the incorporation of hybrid and bimodal particles increased hardness of the composites with respect to the composite with fully small sized particles.

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Section: Introductionmentioning

confidence: 99%

Dry Sliding Wear Behavior of Al₂O₃/SiC Particle Reinforced Aluminium Based MMCs Fabricated by Stir Casting Method

2013

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“…High adhesion and low thermal resistance at the interface are the obvious goals to achieve. For carbon nanomaterials (CNF, CNT) a number of studies are reported not to reach this goal and stay with or below the thermal conductivity of the used matrix material [6], meaning the interface resistance was not successfully reduced and/or the reinforcement material properties were possibly significantly decreased by the technical manufacturing methods.…”

Section: Materials and Their Potentialsmentioning

confidence: 99%

Innovative hybrid heat sink materials with high thermal conductivities and tailored CTE

Kitzmantel

Neubauer

2015

SPIE Proceedings

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This paper talks about high performance heat sinks and heat spreaders made by hybrid structures based on metaldiamond composites. Thermal conductivities can be tuned between 450 and 650 W/mK while maintaining customizable thermal expansion of 6-10 ppm/K (@30°C). Using different hybrid structures in combination with the metal-diamond core significant changes in thermal properties can be identified. Applications targeted are LED, disc laser and laser diode heatsinks with these high performance inserts without the need of CTE matched submounts.

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“…Thus, lately, they have attracted a considerable amount of attention because of their significant scientific, technological and commercial importance. Increasingly, MMCs are being used to replace conventional materials in many applications, especially in the aviation, transportation, electronics and sport industries (Kaczmar et al, 2000;Barcenaa et al, 2008) owing to the increasing performance requirements in such industries. Following the development of science and technology, discontinuously reinforced aluminium alloy matrix composites have become one of the focusses of research and practical applications in the structural composites field.…”

Section: Introductionmentioning

confidence: 99%

Determination of optimum particle size of Al2O3/SiCp reinforced hybrid composites materials in wear testing

Altınkök

Fıçıcı

Çoban

2015

Industrial Lubrication and Tribology

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Purpose -The purpose of this study is to optimize input parameters of particle size and applied load to determine minimum weight loss and friction coefficient for Al2O3/SiC particles-reinforced hybrid composites by using Taguchi's design methodology. Design/methodology/approach -The experimental results demonstrate that the applied size is the major parameter influencing the weight loss for all samples, followed by particle size. The applied load, however, was found to have a negligible effect on the friction coefficient. Moreover, the optimal combination of the testing parameters was predicted. The predicted weight loss and friction coefficient for all the test samples were found to lie close to those of the experimentally observed ones. Findings -The optimum levels of the control factors to obtain better weight loss and friction coefficient were A8 (particle size, 60 m) and B1 (applied load, 20 N), respectively. Taguchi's orthogonal design was developed to predict the quality characteristics (weight loss and friction coefficient) within the selected range of process parameters (particle size and applied load). The results were validated through ANOVA. Originality/value -Firstly, hybrid MMCs ceramic powders were produced and then mechanical tests and optimization were performed.

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Innovative packaging solution for power and thermal management of wide-bandgap semiconductor devices in space applications

Cited by 21 publications

References 3 publications

Dry Sliding Wear Behavior of Al₂O₃/SiC Particle Reinforced Aluminium Based MMCs Fabricated by Stir Casting Method

Dry Sliding Wear Behavior of Al₂O₃/SiC Particle Reinforced Aluminium Based MMCs Fabricated by Stir Casting Method

Innovative hybrid heat sink materials with high thermal conductivities and tailored CTE

Determination of optimum particle size of Al2O3/SiCp reinforced hybrid composites materials in wear testing

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Innovative packaging solution for power and thermal management of wide-bandgap semiconductor devices in space applications

Cited by 21 publications

References 3 publications

Dry Sliding Wear Behavior of Al2O3/SiC Particle Reinforced Aluminium Based MMCs Fabricated by Stir Casting Method

Dry Sliding Wear Behavior of Al2O3/SiC Particle Reinforced Aluminium Based MMCs Fabricated by Stir Casting Method

Innovative hybrid heat sink materials with high thermal conductivities and tailored CTE

Determination of optimum particle size of Al2O3/SiCp reinforced hybrid composites materials in wear testing

Contact Info

Product

Resources

About

Dry Sliding Wear Behavior of Al₂O₃/SiC Particle Reinforced Aluminium Based MMCs Fabricated by Stir Casting Method

Dry Sliding Wear Behavior of Al₂O₃/SiC Particle Reinforced Aluminium Based MMCs Fabricated by Stir Casting Method