Giant negative thermal expansion
WebApr 14, 2024 · With the rising demands of industry to increase the working temperature of gas turbine blades and internal combustion engines, thermal barrier coatings (TBC) were found to be an effective way to further enhance the lifetime of aero components through the improvement of mechanical properties and oxidation-resistance. Thus, this paper aims to … WebThermal conductivity, Abstract La (Fe, Si) 13 -based compounds are well-known magnetocaloric materials, which show a pronounced negative thermal expansion (NTE) around the Curie temperature but have not …
Giant negative thermal expansion
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WebSep 13, 2024 · Materials featuring negative thermal expansion (NTE) attract attention due to their numerous applications in printed circuit boards, machinery, optical-fiber reflective … WebOct 7, 2024 · The negative thermal expansion (NTE) behavior was found in two temperature windows: 90–160 K (β LT ∼ − 32.2 ppm K − 1), and within the room temperature 255–340 K, where a giant NTE was observed (− 69 ppm K − 1). The key atomic mechanism driving the NTE is identified as an atomic triplet-chain flexibility.
WebJun 6, 2011 · Big and cold: Strong internal compression of the Sr ion in the novel perovskite SrCu 3 Fe 4 O 12 (see structure) leads to giant negative thermal expansion (NTE) between 170 and 270 K. Mössbauer spectroscopy shows charge disproportionation of Fe IV to Fe III and Fe V below 200 K. Thus, the isoelectric substitution of the A-site cation can … WebJul 25, 2013 · La(Fe, Si) 13-based compounds are well-known magnetocaloric materials, which show a pronounced negative thermal expansion (NTE) around the Curie temperature but have not been considered as NTE materials for industrial applications.The NaZn 13-type LaFe 13–x Si x and LaFe 11.5–x Co x Si 1.5 compounds were …
WebOct 1, 2015 · The corresponding coefficient of linear thermal expansion ( α) reaches ∼ −70 ppm/K, which are comparable to those of giant NTE materials. Further reducing D to ∼10 nm, Δ T exceeds 100 K and α … WebDec 10, 2024 · Thermal expansion and magnetostriction were measured over a wide temperature range from 2.5 to 300 K in magnetic fields up to 6 T. The …
WebFeb 11, 2015 · MnCoGe-based compounds undergo a large negative thermal expansion (NTE) during the martensitic structural transition from Ni 2 In-type hexagonal to TiNiSi-type orthorhombic structure. High resolution neutron diffraction experiments revealed that the expansion of unit cell volume can be as large as Delt}V/V3.9%.
WebSep 25, 2024 · Negative thermal expansion (NTE) behaviors in the materials with giant magnetocaloric effects (MCE) have been reviewed. Attentions are mainly focused on the hexagonal Ni 2 In-type MM'X … giant eagle willoughby ohio bakeryWebNegative thermal expansion (NTE) has emerged as one of the intense research topics to meet the demands of the precision industry for compensating positive thermal … giant eagle willowick bakeryWebJun 6, 2011 · Big and cold: Strong internal compression of the Sr ion in the novel perovskite SrCu 3 Fe 4 O 12 (see structure) leads to giant negative thermal expansion (NTE) … froukje de both vriendWebOct 16, 2024 · In addition to several traditional fields that demand the elimination of thermal expansion such as processing and optics, advanced electronics and energy … giant eagle wine and spirits seven fieldsWebJul 24, 2024 · The MT is accompanied by a large volume change; yet, these alloys have never been explored for technological applications as negative thermal expansion (NTE) … froukje merchandiseWebJul 4, 2014 · How to cite this article: Cai, W. & Katrusiak, A. Giant negative linear compression positively coupled to massive thermal expansion in a metal-organic framework. Nat. Commun. 5:4337 doi: 10.1038 ... giant eagle wineWebJan 25, 2024 · A giant linear negative thermal expansion up to 9350 ppm with a wide temperature span as large as 350 K (50–400 K) was achieved in the [100] Orth textured MnCoSi-based alloys. The NTE of the textured MnCoSi alloy under an external … giant eagle wine and spirits hours