Heat flow asymmetry on a junction of quartz with graphite

Jeżowski, A.; Rafałowicz, J.

doi:10.1002/pssa.2210470126

Cited by 36 publications

(24 citation statements)

References 5 publications

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“…Beyond the low-bias region (∆ > 0.1) a second order theory showed to be extremely close to the full theory that also fit experimental data from Jezowski and Rafalowicz [30] very well. This model also showed good agreement with Balcerek and Tyc [31].…”

Section: Temperature Dependence Of Thermal Conductivity At Interfacessupporting

confidence: 61%

“…Their model showed that when the boundary or interface resistance was small rectification could exist in systems in which the materials exhibited different temperature dependent thermal conductivity, specifically different signs of the slope of the thermal conductivity with respect to temperature. Kokshenev et al found good qualitative agreement with the work of Jezowiski and Rafalowicz [30] and Balcerek and Tyc [31].…”

Section: Temperature Dependence Of Thermal Conductivity At Interfacessupporting

confidence: 54%

“…The experimental and theoretical work by Marucha et al showed promise for thermally rectifying systems, but later work by Hudson in 1976 showed that their results may not entirely be a result of the effect of the thermal conductivity and may be enhanced by non-uniform isotherms over the cross-section of the specimen [22]. In 1978 Jezowski and Rafalowicz performed experiments of quartz and graphite (differing temperature dependence of thermal conductivity) in series [30]. Unlike the inhomogeneous GaAs system investigated by Marucha et al this system possessed only two sections of the differing materials instead of four.…”

Section: Temperature Dependence Of Thermal Conductivity At Interfacesmentioning

confidence: 99%

See 2 more Smart Citations

A review of thermal rectification observations and models in solid materials

Roberts

Walker

2011

International Journal of Thermal Sciences

325

283

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Thermal rectification is a phenomenon in which thermal transport along a specific axis is dependent upon the sign of the temperature gradient or heat current. This phenomenon offers improved thermal management of electronics as size scales continue to decrease and new technologies emerge by having directions of preferred thermal transport. For most applications where thermally rectifying materials could be of use they would need to exhibit one direction with high thermal conductivity to allow for efficient transport of heat from heat generating components to a sink and one direction with low conductivity to insulate the temperature and heat flux sensitive components. In the process of understanding and developing these materials multiple mechanisms have been found which produce thermally rectifying behavior and much work has been and is being done to improve our understanding of the mechanisms and how these mechanisms can be used with our improved ability to fabricate at the nanoscale to produce efficient materials which have high levels of thermal rectification.

show abstract

Section: Temperature Dependence Of Thermal Conductivity At Interfacessupporting

confidence: 61%

Section: Temperature Dependence Of Thermal Conductivity At Interfacessupporting

confidence: 54%

Section: Temperature Dependence Of Thermal Conductivity At Interfacesmentioning

confidence: 99%

See 1 more Smart Citation

A review of thermal rectification observations and models in solid materials

Roberts

Walker

2011

International Journal of Thermal Sciences

325

283

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show abstract

“…[2][3][4][5][6] Apart from the spurious results from experimental artifacts, 7-9 some of the observation were attributed to thermal strain or thermal constriction that led to dissimilar contact areas at forward and reverse biases. 10,11 Later, thermal rectification was claimed to occur in inhomogeneously-doped GaAs though the subtle roles of temperature inhomogeneity or contact thermal resistance were not ruled out in the experiment.…”

confidence: 99%

Detecting thermal rectification

Chiu

Huang

et al. 2016

AIP Advances

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Thermal rectification is a special heat transfer phenomenon that thermal conductance of a sample is higher in one direction than that in the reversed direction. Thermal rectifiers have been proposed to be the building blocks of phononic circuits, high performance thermoelectric devices, and energy-saving materials. Theoretically, thermal rectification has been suggested to be ubiquitous, occurring in wherever nonlinear interactions and broken inversion symmetry are present. However, currently available experimental methods have limited sensitivities and are unable to unravel the interesting effect in many systems. Here, by adopting the concept of nonlinear optics, we propose an improved experimental method to detect minuscule thermal rectification from large background thermal conductance. Experimentally, a SiC nanowire, a SiGe nanowire, and a multiwall BN nanotube are investigated and found their thermal rectification is smaller than 0.2% even after asymmetric mass-loading. The method would be very powerful in revealing interesting phonon properties of many materials.

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“…Experimental observations of thermal rectification due to interfaces between materials of different thermal conductivity temperature dependencies date to the 1970s. [18][19][20] [15,[21][22] Several strides have been made towards the numerical and analytical modeling of these non-linear systems at steady state. M. Peyrard analyzed such a system with basic continuum laws of heat conduction.…”

mentioning

confidence: 99%

Analysis of Thermal Diodes Enabled by Junctions of Phase Change Materials

Cottrill

Strano

2015

Advanced Energy Materials

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Materials designed to undergo a phase transition at a prescribed temperature have been advanced as elements for controlling thermal flux. Such phase change materials can be used as components of reversible thermal diodes, or materials that favor heat flux in a preferred direction; however, a thorough mathematical analysis of such diodes is thus far absent from the literature. Herein, it is shown mathematically that the interface of a phase change material with a phase invariant one can function as a simple thermal diode. Design equations are derived for such phase change diodes, solving for the limits where the transition temperature falls within or outside of the temperature gradient across the device. Criteria are derived analytically for the choice of thermal conductivity of the invariant phase to maximize the rectification ratio. Finally, the model is applied to several experimental systems in the literature, providing bounds on observed performance. This model should aid in the development of materials capable of controlling heat flux.

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Heat flow asymmetry on a junction of quartz with graphite

Cited by 36 publications

References 5 publications

A review of thermal rectification observations and models in solid materials

A review of thermal rectification observations and models in solid materials

Detecting thermal rectification

Analysis of Thermal Diodes Enabled by Junctions of Phase Change Materials

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