Search Results - "Rogl, Gerda"
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Development of Thermoelectric Half-Heusler Alloys over the Past 25 Years
Published in Crystals (Basel) (01-07-2023)“…Half-Heusler alloys are among the most promising thermoelectric materials. In the present review, thermoelectric properties (at 300 K and 800 K) of more than…”
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2
Filled Sb-Based Skutterudites from 1996–2022
Published in Crystals (Basel) (01-12-2022)“…In the present review the focus is set on filled antimony-based skutterudites as they are among the most promising TE materials. Thermoelectric properties (at…”
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3
High pressure torsion, a large‐scale manufacturing tool for high ZT skutterudite thermoelectrics
Published in Zeitschrift für anorganische und allgemeine Chemie (1950) (12-08-2022)“…For mass production of thermoelectric generators, a cheap/sustainable method is required to fabricate leg material with a high figure of merit, ZT. Severe…”
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The Effect of Severe Plastic Deformation on Thermoelectric Performance of Skutterudites, Half-Heuslers and Bi-Tellurides
Published in MATERIALS TRANSACTIONS (01-10-2019)“…Although thermoelectric materials with a figure of merit, ZT, higher than 1.2 have gained considerable interest in electric power generation, little is…”
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5
Half-Heusler alloys: Enhancement of ZT after severe plastic deformation (ultra-low thermal conductivity)
Published in Acta materialia (15-01-2020)“…Several n- and p-type Half-Heusler (HH) thermoelectric materials (Ti0.5Zr0.5NiSn-based and NbFeSb-based) have been processed by high-pressure torsion (HPT) to…”
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6
How Severe Plastic Deformation Changes the Mechanical Properties of Thermoelectric Skutterudites and Half Heusler Alloys
Published in Frontiers in materials (26-11-2020)“…Thermoelectric leg materials with a high figure of merit, ZT, are the essential basis to build thermoelectric generators, directly converting waste heat into…”
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7
High-pressure torsion, a new processing route for thermoelectrics of high ZTs by means of severe plastic deformation
Published in Acta materialia (01-03-2012)“…High-pressure torsion (HPT) is a type of severe plastic deformation (SPD) that is highly suited to produce bulk ultrafine-grained and nanocrystalline…”
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Influence of shear strain on HPT-processed n-type skutterudites yielding ZT=2.1
Published in Journal of alloys and compounds (25-02-2021)“…After our successful new and energy-saving production route to prepare bulk skutterudites with high ZTs from commercial powders via cold pressing (CP) and…”
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9
Interaction of Skutterudites with Contact Materials: A Metallurgical Analysis
Published in Journal of phase equilibria and diffusion (01-08-2020)“…More than hundred diffusion couples between p- and n-type skutterudites and various materials were prepared and interaction zones were investigated after heat…”
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10
Thermoelectric properties of Cd doped tetrahedrite: Cu12−xCdxSb4S13
Published in Intermetallics (01-11-2016)“…The effect of Cd doping on the thermoelectric properties of synthetic tetrahedrites Cu12−xCdxSb4S13 (x = 0, 0.25, 0.5, 0.75, 1, 1.25 and 1.5) was studied…”
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Effect of HPT processing on the structure, thermoelectric and mechanical properties of Sr0.07Ba0.07Yb0.07Co4Sb12
Published in Journal of alloys and compounds (05-10-2012)“…[Display omitted] ► TEM images of an n-type skutterudite after HPT processing are shown for the first time. ► Dislocations and grain boundaries of two types…”
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12
Effect of High-Pressure Torsion on Texture, Microstructure, and Raman Spectroscopy: Case Study of Fe- and Te-Substituted CoSb3
Published in Journal of electronic materials (01-10-2014)“…Fe 0.05 Co 0.95 Sb 2.875 Te 0.125 , a double-element-substituted skutterudite, was prepared by induction melting, annealing, and hot pressing (HP). The…”
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13
Anisotropy of Microstructure and Its Influence on Thermoelectricity: The Case of Cu2Te–Sb2Te3 Eutectic
Published in ACS applied energy materials (25-10-2021)“…Using a set of controlled in situ grown lamellar composites of (Cu2Te)62.02–(Sb2Te3)37.98, we report a remarkable variation of transport properties of…”
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14
In-situ observation of temperature dependent microstructural changes in HPT-produced p-type skutterudites
Published in Journal of alloys and compounds (15-03-2024)Get full text
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15
Effect of Fe alloying on the thermoelectric performance of Cu2Te
Published in Journal of alloys and compounds (15-03-2020)“…Copper telluride belongs to the “Phonon Liquid Electron Crystal” (PLEC) class of materials owing to its mobile Cu ions which migrate easily inside the crystal…”
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Sustainable and simple processing technique for n-type skutterudites with high ZT and their analysis
Published in Acta materialia (01-07-2019)“…As various branches of industry are interested in good thermoelectric generators, there is a serious demand for an easy, fast, cheap and sustainable production…”
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Tau-borides (Mnx{Ru,Os,Ir}1-x)23B6: X-ray single crystal and TEM data, physical properties
Published in Journal of alloys and compounds (25-07-2024)“…Investigation (electron microprobe and X-ray powder and single crystal diffraction analyses) of the phase relations in the Mn-rich corner (> 45 at% Mn) of the…”
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18
Simultaneous optimization of power factor and thermal conductivity via Te and Se double substitution in Cu12Sb4S13 tetrahedrite
Published in Scripta materialia (01-11-2020)“…The present study reports the structural, electronic, elastic, and thermoelectric properties of Cu12Sb3.9Te0.1S13-xSex (x = 0, 0.1, 0.5, 0.75 and 1)…”
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Attempts to further enhance ZT in skutterudites via nano-composites
Published in Journal of alloys and compounds (25-02-2017)“…Skutterudites are known as excellent thermoelectric p- and n-type materials and have already achieved good efficiencies for the conversion of heat to…”
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Borides Mn3-x{Rh,Ir}5B2 with Ti3Co5B2-type: X-ray single crystal and TEM data, physical properties
Published in Solid state sciences (01-08-2024)“…A cursory investigation of the phase relations in the Mn-{Rh,Ir}-B systems prompted for each system a ternary compound, Mn3-x{Rh,Ir}5B2, the crystal structure…”
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