Browsing by Keywords "Thermal conductivity"
Now showing items 1-10 of 10
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Computational thermal homogenization of concrete
(2013)Computational thermal homogenization is applied to the microscale and mesoscale of concrete sequentially. Microscale homogenization is based on a 3D micro-CT scan of hardened cement paste (HCP). Mesoscale homogenization ... -
Development of force fields for novel 2D materials for temperature dependent vibrational properties
(Bilkent University, 2019-09)A new era of nanodevice engineering has been started after fabricating graphene. This motivated vast number of researches for predicting, fabricating and utilizing 2D materials. Temperature dependent properties are ... -
Energy based investigation of process parameters while drilling carbon fiber reinforced polymers
(Elsevier B.V., 2016)Carbon fiber reinforced polymers (CFRPs) are widely used in the aerospace industry due to their light weight, high strength, and low thermal conductivity. Drilling is a critical process that affects the quality of CFRP ... -
A novel method for thermal conductivity measurement of two dimensional materials
(Bilkent University, 2019-09)Thermal conductivity is a quantity which governs the heat transfer in a material. After increasing importance of efficiency in power generation systems and cooling mechanisms in micro-structures, many measurement methods ... -
Quantum effects of thermal conductance through atomic chains
(2001)We present a formalism for an atomic scale study of phononic heat transfer. The expression of thermal energy current can be cast in the Landauer form and incorporates the transmission coefficient explicitly. Calculation ... -
Quantum transport through one-dimensional aluminum wires
(American Vacuum Society, 2002)Quantum conductance in narrow channels has been well understood by using the two-dimensional electron gas, a model system which has been realized in semiconductor heterojunctions. An essential property of this electron ... -
Substrate and device pattern dependence of the thermal crosstalk in Y Ba2Cu 3O7−δ transition edge bolometer arrays
(Institute of Electrical and Electronics Engineers, 2006-12)Using YBa2CU3O7-delta (YBCO) thin films, pulsed laser deposited on 1-mm-thick LaAlO3 or SrTiO3 substrates, we made 4 x 1 pixel arrays of transition edge bolometers with separations between neighboring pixels ranging from ... -
Superconductivity transition dependence of the thermal crosstalk in YBa 2Cu 3O 7-x edge-transition bolometer arrays
(Institute of Electrical and Electronics Engineers, 2006)The effect of the superconductivity transition on the thermal crosstalk in YBa 2Cu 3O 7-x, edge-transition bolometer arrays is investigated for DC to midrange modulation frequency infrared radiation. The bolometers in the ... -
Temperature-dependent phonon spectrum of transition metal dichalcogenides calculated from the spectral energy density: lattice thermal conductivity as an application
(American Physical Society, 2019)Predicting the mechanical and thermal properties of quasi-two-dimensional (2D) transition metal dichalcogenides (TMDs) is an essential task necessary for their implementation in device applications. Although rigorous ... -
Validation of inter-atomic potential for WS2 and WSe2 crystals through assessment of thermal transport properties
(Elsevier B.V., 2018)In recent years, transition metal dichalcogenides (TMDs) displaying astonishing properties are emerged as a new class of two-dimensional layered materials. The understanding and characterization of thermal transport in ...
