Thermal diffusion coating of diamonds for improved and reliable thermal properties of metal diamond composites

M. Kitzmantel, E. Neubauer, Ivica Smid, C. Eisenmenger-Sittner, P. Angerer

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Metal Diamond Composites exhibit promising properties for thermal management applications. A tailored design of the interface between the material partners is essential to exploit the potential of the reinforcement. In this study a cost efficient and easy to apply coating technique based on thermal diffusion was investigated and thin nanometer to micrometer coatings of various metals were successfully applied onto diamond powders. Besides the study of the diffusion process itself, the resulting layer thicknesses and interlayer compositions, the coated diamonds were introduced in a metal matrix by hot pressing and the thermal properties of the composite were measured. Thermal conductivities above 600W/mK and a coefficient of thermal expansion of 8- 10ppm/K were achieved in such composites. In addition, thermo-mechanical stability was tested by thermal cycling under harsh conditions. Various sample geometries were produced to show the benefits of PM processing which enables combining excellent thermal properties with good surface finish and complex shaping.

Original languageEnglish (US)
Pages (from-to)325-328
Number of pages4
JournalInternational Review of Mechanical Engineering
Volume5
Issue number2
StatePublished - Feb 1 2011

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Diffusion coatings
Thermal diffusion
Diamonds
Thermodynamic properties
Composite materials
Metals
Coating techniques
Mechanical stability
Thermal cycling
Hot pressing
Temperature control
Thermal expansion
Thermal conductivity
Reinforcement
Powders
Coatings
Geometry
Processing
Chemical analysis
Costs

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

Kitzmantel, M., Neubauer, E., Smid, I., Eisenmenger-Sittner, C., & Angerer, P. (2011). Thermal diffusion coating of diamonds for improved and reliable thermal properties of metal diamond composites. International Review of Mechanical Engineering, 5(2), 325-328.
Kitzmantel, M. ; Neubauer, E. ; Smid, Ivica ; Eisenmenger-Sittner, C. ; Angerer, P. / Thermal diffusion coating of diamonds for improved and reliable thermal properties of metal diamond composites. In: International Review of Mechanical Engineering. 2011 ; Vol. 5, No. 2. pp. 325-328.
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Kitzmantel, M, Neubauer, E, Smid, I, Eisenmenger-Sittner, C & Angerer, P 2011, 'Thermal diffusion coating of diamonds for improved and reliable thermal properties of metal diamond composites', International Review of Mechanical Engineering, vol. 5, no. 2, pp. 325-328.

Thermal diffusion coating of diamonds for improved and reliable thermal properties of metal diamond composites. / Kitzmantel, M.; Neubauer, E.; Smid, Ivica; Eisenmenger-Sittner, C.; Angerer, P.

In: International Review of Mechanical Engineering, Vol. 5, No. 2, 01.02.2011, p. 325-328.

Research output: Contribution to journalArticle

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