منابع مشابه
Enhanced thermoelectric figure of merit of p-type half-Heuslers.
Half-Heuslers would be important thermoelectric materials due to their high temperature stability and abundance if their dimensionless thermoelectric figure of merit (ZT) could be made high enough. The highest peak ZT of a p-type half-Heusler has been so far reported about 0.5 due to the high thermal conductivity. Through a nanocomposite approach using ball milling and hot pressing, we have ach...
متن کاملEnhanced thermoelectric performance in TiNiSn-based half-Heuslers.
Thermoelectric figures of merit, ZT > 0.5, have been obtained in arc-melted TiNiSn-based ingots. This promising conversion efficiency is due to a low lattice thermal conductivity, which is attributed to excess nickel in the half-Heusler structure.
متن کاملAchieving high power factor and output power density in p-type half-Heuslers Nb1-xTixFeSb.
Improvements in thermoelectric material performance over the past two decades have largely been based on decreasing the phonon thermal conductivity. Enhancing the power factor has been less successful in comparison. In this work, a peak power factor of ∼106 μW⋅cm-1⋅K-2 is achieved by increasing the hot pressing temperature up to 1,373 K in the p-type half-Heusler Nb0.95Ti0.05FeSb. The high powe...
متن کاملHalf Wavelength Double-ridged Half Height Rectangular Waveguide Resonator
This paper presents a novel concept of half wavelength doubleridged half height rectangular waveguide resonator. The basic design consists of a double-ridged rectangular waveguide placed between two rectangular waveguide WR2300. The resonance frequency, bandwidth, Q factor etc. can be controlled by varying the ridge parameters such as ridge length, width, height, ridge gap width, ridge gap heig...
متن کاملThe Half-life of 130Te Double ^-decay
In order to determine the half-life of the 130Te double /?-decay, the amounts and isotopic composition of xenon extracted from tellurium ores, from the Oya gold mine in Japan, have been measured with a high-sensitivity mass spectrometer. Compared with atmospheric xenon an excess was definitely found at mass numbers 129, 130 and 131 in the extracted xenon. The excess of 130Xe is predominant, the...
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ژورنال
عنوان ژورنال: Joule
سال: 2019
ISSN: 2542-4351
DOI: 10.1016/j.joule.2019.04.003