WebNov 1, 2024 · Half-Heusler phases have garnered much attention as thermally stable and non-toxic thermoelectric materials for power conversion in the mid-to-high temperature … WebMay 23, 2016 · Among the considered phases, α- phase is found to be the most stable phase for these alloys at normal pressure. A pressure induced structural phase transition from α-phase to β- phase is observed for LiBeAs. The electronic structure reveals that these alloys are semiconductors.
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WebNov 6, 2024 · Previously, high band degeneracy N v was found contributing to the high performance of half-Heusler compounds. 20 Herein, together with the experimentally … WebApr 11, 2024 · The most actively studied in this respect materials are the Heusler alloys based on MNiSn and MCoSb (M=Ti, Zr, Hf) with a C1 b type of crystal structure (so-called half-Heusler alloys) and Fe 2 YZ (Y=V, Ti; Z=Al, Sn) with a L2 1 type of crystal structure (so-called full-Heusler alloys) . Stability of these compound is largely governed by the ...
WebMay 11, 2024 · Recently, particular attention has been paid to half-Heusler (HH) compounds, due to their high-temperature stability, good mechanical robustness, and good TE performance, which are of paramount importance for practical applications. ... The phase structure of the samples was observed using XRD on a PANalytical X’Pert Pro … WebMay 19, 2024 · Half-Heusler (HH) compounds, with a valence electron count of 8 or 18, have gained popularity as promising high-temperature thermoelectric (TE) materials due …
WebApr 1, 2024 · In ABC half-Heusler (HH) compounds, such as ZrNiSn [1], TiNiSn [2], NbCoSn [3], TaCoSn [4], etc., the B-over-stoichiometry (B-rich) is thermodynamically stabilized [5].It substantially impacts the crystal structure and microstructure, providing a new starting point to understand and further manipulate the thermoelectric (TE) … WebOct 2, 2014 · The half-Heusler structure can be described in several ways . One insightful way is to consider a face centred cubic main group lattice with the electropositive X …
WebJan 10, 2024 · Here the authors report the discovery of half-Heusler-like TiRu1+xSb with wide continuous compositions falling in the gap region and tunable p-to n-type …
WebMay 8, 2024 · The crystal structure of the half-Heusler (HH) compound (Fig. 1) is cubic, comp osed of. four face-centered cubic (fcc) sublattices and three of them are occupied by three different. barbara on abbott elementaryWebOct 2, 2014 · The half-Heusler structure can be described in several ways . One insightful way is to consider a face centred cubic main group lattice with the electropositive X metals in all octahedral holes, while the transition metal occupies half of the tetrahedral sites. This leads to rocksalt (XZ) and zincblende (YZ) sublattices. barbara on match game 75WebJun 27, 2024 · The general formula of half-Heusler compound is XYZ, where X and Y are transition elements and Z is the main group element. The elements X, Y and Z occupy Wyckoff positions (0.50 0.50 0.50), (0.25 0.25 0.25) and (0.00 0.00 0.00), and the position (0.75 0.75 0.75) is left vacant [ 17 ]. barbara on match game 73WebApr 7, 2024 · The half- and full-metallic Heusler alloys prepared by physical vapor deposition, i.e., thin-film forms, ball milling, or arc melting, are critical for obtaining the necessary structural ordering, i.e., L2 1, and preventing the formation of disordered structures, such as B2, A2, and DO3, which may arise during the alloy manufacturing … barbara onoratiWebApr 5, 2016 · During recent years, many half Heusler alloys have been investigated for their thermoelectric properties. The f-electron-based rare-earth ternary half Heusler compound DyPdBi has its f energy levels located close to the Fermi energy level. Other research efforts have emphasized that such materials have good thermoelectric capabilities. barbara on shark tank picshttp://aflowlib.org/prototype-encyclopedia/ABC_cF12_216_b_c_a.html#:~:text=All%20of%20the%20atoms%20are%20located%20on%20the,structure%20with%20half%20of%20the%20copper%20atoms%20missing. barbara onnis unicaWebApr 22, 2024 · Half-Heusler materials are strong candidates for thermoelectric applications due to their high weighted mobilities and power factors, which is known to be correlated to valley degeneracy in the electronic band structure. barbara on match game