Thermal boundary conductance between refractory metal carbides and diamond

Monachon, Christian; Weber, Ludger

doi:10.1016/j.actamat.2014.04.024

Cited by 48 publications

(20 citation statements)

References 66 publications

(72 reference statements)

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“…The fittings, that were done with a single parameter, namely, the interface thermal conductance h, are rather satisfactory. The high relevancy of h has been highlighted already by many authors [28][29][30][31][32][33]. In the case of AgSi/diamond, the fitted h is similar to that reported in Ref.…”

Section: Composites With Inclusions Of Either Diamond or Iron Particlsupporting

confidence: 87%

Interface engineering in ferromagnetic high-thermal conductivity iron-diamond/metal composites for electric conversion applications

Molina

Louis

2018

Journal of Alloys and Compounds

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The objective of this work is to investigate whether any combination of metal and magnetic particles may fit the specifications of electric conversion applications, which require, among other properties, sufficiently high magnetic permeability and thermal conductance and a low (adjustable) thermal expansion coefficient. After having explored a wide variety of combinations, guided by both chemical and physical considerations, it was decided to investigate composites fabricated by gas pressure infiltration of Ag or Ag3wt%Si alloys into compacts of bimodal mixtures of diamond (high thermal conductivity) and iron particles (high magnetic permeability). Three average particle sizes of each component were used to fabricate the composites, namely, diamond particles of 230, 285 and 295 µm and iron particles of 30, 42 and 398 µm. In addition the volume fraction varied in the ranges 0.1-0.59 (diamond) and 0.12-0.43 (iron). In order to avoid alloying with the infiltrating metal and iron-diamond reaction, iron particles were coated with amorphous carbon. The results indicate that only composites containing a volume fraction of carbon-coated iron particles higher than 0.4 showed properties (a thermal conductance higher than 200 W/mK and a relative magnetic permeability above 0.3) within the range valid for electric conversion applications. Composites containing non-coated iron particles reached in almost all cases very low values of both properties. Highlights Fe-diamond/Ag and Fe-diamond/AgSi composites are fabricated by metal infiltration Fe and diamond particles undergo detrimental solid-solid reactions during processing Interface engineering by carbon coating of Fe particles (Fe C) is followed Carbon coating sharply decreases the Ag-Fe and AgSi-Fe interface thermal conductance Fe C (>40%)-diamond/Ag-Si composites are adequate for electric conversion applications

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Section: Composites With Inclusions Of Either Diamond or Iron Particlsupporting

confidence: 87%

Interface engineering in ferromagnetic high-thermal conductivity iron-diamond/metal composites for electric conversion applications

Molina

Louis

2018

Journal of Alloys and Compounds

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“…The research suggests that the thermal boundary conductivity is strongly affected by the interfacial carbides that have already formed at the metal-diamond interface during metal deposition [42]. The above investigation demonstrates that annealing the mixture of diamond and tungsten powder provides an effective approach to directly form a carbide layer on the diamonds.…”

Section: Thermal Properties Of the Diamond/cu Compositesmentioning

confidence: 91%

Effects of dual-layer coatings on microstructure and thermal conductivity of diamond/Cu composites prepared by vacuum hot pressing

Zhang

Peng

Feng

et al. 2015

Surface and Coatings Technology

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“…Indeed, as illustrated schematically in Figure 1a, the detailed structure of the interface can dramatically impact TBC, be it through an interfacial layer [whether interdiffused (16,40,133,139) or deliberately added (10, 140--142)], its roughness (41,143), or simply the substrate's chemical termination (18,126,128).…”

Section: Interfacial Bonding Strength and Stiffnessmentioning

confidence: 99%

Thermal Boundary Conductance: A Materials Science Perspective

Monachon

Weber

Dames

2016

Annu. Rev. Mater. Res.

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221

140

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The thermal boundary conductance (TBC) of materials pairs in atomically intimate contact is reviewed as a practical guide for materials scientists. First, analytical and computational models of TBC are reviewed. Five measurement methods are then compared in terms of their sensitivity to TBC: the 3ω method, frequency-and time-domain thermoreflectance, the cut-bar method, and a composite effective thermal conductivity method. The heart of the review surveys 30 years of TBC measurements around room temperature, highlighting the materials science factors experimentally proven to influence TBC. These factors include the bulk dispersion relations, acoustic contrast, and interfacial chemistry and bonding. The measured TBCs are compared across a wide range of materials systems by using the maximum transmission limit, which with an attenuated transmission coefficient proves to be a good guideline for most clean, strongly bonded interfaces. Finally, opportunities for future research are discussed.

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Thermal boundary conductance between refractory metal carbides and diamond

Cited by 48 publications

References 66 publications

Interface engineering in ferromagnetic high-thermal conductivity iron-diamond/metal composites for electric conversion applications

Interface engineering in ferromagnetic high-thermal conductivity iron-diamond/metal composites for electric conversion applications

Effects of dual-layer coatings on microstructure and thermal conductivity of diamond/Cu composites prepared by vacuum hot pressing

Thermal Boundary Conductance: A Materials Science Perspective

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