Thermal conductivity of concentrated, sterically stabilized suspensions

Rajaiah, J.; Andrews, Graham F.; Ruckenstein, Eli; Gupta, Rakesh

doi:10.1016/0009-2509(92)85135-x

Cited by 14 publications

(8 citation statements)

References 5 publications

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“…This is very likely an effect of the large amount of binder dissolved in the suspension, which is not considered in the calculation. There are advanced models for the calculation of suspensions considering additives, 21 but the thermal conductivity of the additives has to be known. Measuring the thermal conductivity of the suspension by a steady‐state experiment is a suitable alternative, which can easily be realized in the DS‐setup.…”

Section: Discussionmentioning

confidence: 99%

Control of Lamellae Spacing During Freeze Casting of Ceramics Using Double‐Side Cooling as a Novel Processing Route

Waschkies¹,

Oberacker²,

Hoffmann

2009

Journal of the American Ceramic Society

133

122

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A processing route for freeze-casting of particle suspensions is presented, where the microstructure development during the solidification process can be controlled precisely. For this purpose, the single-side cooling and double-side cooling methods are compared. A procedure will be shown to control the freezing process using the double-side cooling method. Our approach was to determine the freezing conditions in order to forecast the freezing velocity and to carry out an advanced directional solidification setup for the experimental realization. Using this setup and the theoretical knowledge, the microstructure development can be controlled during the whole freezing process over a length of several centimeters.

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Section: Discussionmentioning

confidence: 99%

Control of Lamellae Spacing During Freeze Casting of Ceramics Using Double‐Side Cooling as a Novel Processing Route

Waschkies¹,

Oberacker²,

Hoffmann

2009

Journal of the American Ceramic Society

133

122

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“…Schematic of the process used to produce (a) PANbased and (b) pitch-based CNF [47]. for this reason that the thermal conductivity of particulate composites is not sensitive to the thermal conductivity value of the filler, provided that the ratio of the filler to matrix thermal conductivity is large [50]. To increase the interfacial interaction between the CNF and the polymer matrix, acid treatment of the fibers has been attempted [51].…”

Section: Thermal Conductivity Of Cnf-polymer Compositesmentioning

confidence: 99%

A Review on Thermal Conductivity of Polymer Composites Using Carbon-Based Fillers : Carbon Nanotubes and Carbon Fibers

Hong¹,

Park²,

Shim³

2010

Carbon letters

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Recently, the use of thermal conductive polymeric composites is growing up, where the polymers filled with the thermally conductive fillers effectively dissipate heat generated from electronic components. Therefore, the management of heat is directly related to the lifetime of electronic devices. For the purpose of the improvement of thermal conductivity of composites, fillers with excellent thermally conductive behavior are commonly used. Thermally conductive particles filled polymer composites have advantages due to their easy processibility, low cost, and durability to the corrosion. Especially, carbon-based 1-dimensional nanomaterials such as carbon nanotube (CNT) and carbon nanofiber (CNF) have gained much attention for their excellent thermal conductivity, corrosion resistance and low thermal expansion coefficient than the metals. This paper aims to review the research trends in the improvement of thermal conductivity of the carbon-based materials filled polymer composites.

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“…This work was presented at the AIChE Annual Meeting in San Francisco, Nov. [5][6][7][8][9]1989. Also, the contents of this paper are the subject of a pending patent.…”

Section: Notementioning

confidence: 99%

Stable, highly concentrated suspensions for electronic and ceramic materials applications

1991

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Highly concentrated solid-in-liquid suspensions find applications in a number of areas such as electronics, ceramics, paints, coatings, etc. Highly loaded, stable suspensions which exhibit desirable rheological characteristics (moderate viscosity, shear thinning behavior, thixotropy, and a small yield stress, for example), and which have high thermal or electrical conductivities are frequently sought after. We describe here some techniques which can be used to obtain such highly concentrated suspensions. These involve employing mixed size grades of particles and effective dispersants. For thermal paste applications, for example, compliant pastes of up to 78 vol. % solids with thermal conductivity values as high as 6 W/mK (hence, a few times greater than the values reported previously by others), low electrical conductivity, and moderate viscosity have been prepared by mixing different particle size grades of materials such as A1 2 O 3 , SiC, A1N, Al, and diamond. Effective dispersants, both commercial as well as those synthesized in our laboratory as novel variations of previously known molecular architectures, have been used to facilitate the achievement of these very high loading and stable suspensions.

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Thermal conductivity of concentrated, sterically stabilized suspensions

Cited by 14 publications

References 5 publications

Control of Lamellae Spacing During Freeze Casting of Ceramics Using Double‐Side Cooling as a Novel Processing Route

Control of Lamellae Spacing During Freeze Casting of Ceramics Using Double‐Side Cooling as a Novel Processing Route

A Review on Thermal Conductivity of Polymer Composites Using Carbon-Based Fillers : Carbon Nanotubes and Carbon Fibers

Stable, highly concentrated suspensions for electronic and ceramic materials applications

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