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Related papers: Half Heusler Alloys for Efficient Thermoelectric P…

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Nanostructured Zinc oxide (ZnO) was synthesized via a ball milling for 10 hours using high energy planetary ball mill. Phase purity and homogeneity of all the samples have been investigated by X-ray diffraction (XRD) and Field Emission…

Materials Science · Physics 2015-06-11 Pawan Kumar , M. Kar , Anup V. Sanchela , C. V. Tomy , Ajay D. Thakur

In the last few decades, the study of topological materials has been carried out on an extensive scale. Half-Heusler alloys are well known for their topological behaviours. In this work, we present a detailed study of topological properties…

Materials Science · Physics 2021-09-22 Vivek Pandey , Antik Sihi , Sudhir K. Pandey

Despite significant advancements in electrocatalysis for clean hydrogen fuel generation, the transition from concept to commercialization faces challenges due to the instability of electrocatalysts. This study delves into the exploration of…

Chemical Physics · Physics 2024-06-12 Deepak Gujjar , Hem C. Kandpal

In this work, we report the structural, magnetic and electrical and thermal transport properties of the Heusler-type alloy Ru2NbAl. From the detailed analysis of magnetization data, we infer the presence of superparamagnetically interacting…

Strongly Correlated Electrons · Physics 2018-11-21 Sanchayita Mondal , Chandan Mazumdar , R. Ranganathan , Eric Alleno , P. C. Sreeparvathy , V. Kanchana , G. Vaitheeswaran

This review focuses on the investigation and enhancement of the thermoelectric properties of semiconducting nanowires (NWs). NWs are nanostructures with typical diameters between few to hundreds of nm and length of few to several microns,…

Mesoscale and Nanoscale Physics · Physics 2021-01-05 Milo Yaro Swinkels , Ilaria Zardo

The potential of Fe2TiSn full-Heusler compounds for thermoelectric applications has been suggested theoretically, but not yet grounded experimentally, due to the difficulty of obtaining reproducible, homogeneous, phase pure and defect free…

Temperature dependent electrical resistivity, crystal structure and heat capacity measurements reveal a resistivity drop and metal to semiconductor transition corresponding to first order structural phase transition near 400 K in Ca3Co4O9.…

Materials Science · Physics 2012-04-17 Tao Wu , Trevor A. Tyson , Haiyan Chen , Jianming Bai , Hsin Wang , Cherno Jaye

The thermoelectric properties of half-Heusler alloy TiNiSn have been studied for decade, however, theoretical report on its thermal conductivity is still little known, because it is difficult to estimate effectively the lattice thermal…

Materials Science · Physics 2015-06-11 Guangqian Ding , G. Y. Gao , K. L. Yao

Thermoelectric (TE) materials research plays a vital role in heat-to-electrical energy conversion and refrigeration applications. Bismuth-antimony (Bi-Sb) alloy is a promising material for thermoelectric cooling. Herein, a high figure of…

Materials Science · Physics 2019-10-16 Sheng Gao , John Gaskins , Xixiao Hu , Kathleen Tomko , Patrick Hopkins , S. Joseph Poon

The identification and use of reversible Martensitic transformations, typically described as shape memory transformations, as a new class of solid-solid phase change material is experimentally demonstrated here for the first time. To prove…

Materials Science · Physics 2019-05-01 Darin J. Sharar , Brian F. Donovan , Ronald J. Warzoha , Adam A. Wilson , Asher C. Leff

We report a first principles study based on density functional theory on the structural and electronic properties of transition metal Zr and Hf doped small aluminum clusters with 1 to 7 aluminum atoms. We have used B3PW91 with LANL2DZ basis…

Materials Science · Physics 2018-06-28 Hardik L. Kagdada , Shweta D. Dabhi , Venu Mankad , Satyam M. Shinde , Prafulla K. Jha

The thermoelectric figure of merit ZT, which is defined using electrical conductivity, Seebeck coefficient, thermal conductivity, and absolute temperature T, has been widely used as a simple estimator of the conversion efficiency of a…

Applied Physics · Physics 2020-05-18 Byungki Ryu , Jaywan Chung , Eun-Ae Choi , Pawel Ziolkowski , Eckhard Müller , SuDong Park

This work reports on the bulk properties of the quaternary Heusler alloy Co$_2$Mn$_{1-x}$Fe$_x$Si with the Fe concentration $x=$. All samples, which were prepared by arc melting, exhibit $L2_1$ long range order over the complete range of Fe…

Thermal energy can be directly converted to electrical energy as a result of thermoelectric effects. Because this conversion realises clean energy technology, such as waste heat recovery and energy harvesting, substantial efforts have been…

Materials Science · Physics 2023-03-30 Byungki Ryu , Jaywan Chung , SuDong Park

Magnetic particle hyperthermia, in which colloidal nanostructures are exposed to an alternating magnetic field, is a promising approach to cancer therapy. Unfortunately, the clinical efficacy of hyperthermia has not yet been optimized.…

Using \textit{ab initio} calculation, we investigate systematically the structural and electronic properties of Ni$_{2}$Nb$_{1+x}$Sn$_{1-x}$ ($x$ = 0, 0.25, 0.50). Here, projector augmented wave approach (PAW) implemented in the Vienna…

Materials Science · Physics 2013-04-08 Soumyadipta Pal

Thermoelectric (TE) materials seamlessly convert thermal into electrical energy and vice versa, making them promising for applications such as power generation or cooling. Although historically the TE effect was first discovered in metals,…

A numerical study of thermoelectric nanocomposites is presented. Thermoelectric properties as a function of average grain size or nanoparticle density are examined by simulating the measurements as they would be done experimentally. In…

Materials Science · Physics 2020-01-08 Xufeng Wang , Mark Lundstrom

The non-stoichiometric Fe$_2$P-type (FeMnP$_{0.5}$Si$_{0.5}$)$_{1-x}$(FeV)$_{x}$ alloys ( $x=0, 0.01$, $0.02$, and $0.03$) have been investigated as potential candidates for magnetic refrigeration near room temperature. The magnetic…

The effects of various heat treatments on the microstructure and hardness of new Ni56Ti41Hf3 and Ni56Ti36Hf8 (atomic %) alloys were studied to evaluate the suitability of these materials for tribological applications. A solid-solution…

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