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Giant negative thermal expansion in magnetic nanocrystals
Nature Nanotechnology, 2008Most solids expand when they are heated, but a property known as negative thermal expansion has been observed in a number of materials, including the oxide ZrW2O8 (ref. 1) and the framework material ZnxCd1-x(CN)2 (refs 2,3). This unusual behaviour can be understood in terms of low-energy phonons, while the colossal values of both positive and negative ...
X G, Zheng +5 more
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Anomalous negative thermal expansion of CeInCu2
Physica B: Condensed Matter, 1993Abstract The coefficients of linear thermal expansion, α(T), of the heavy-fermion compound CeInCu2 and its non-heavy analog LaInCu2 have been measured at low temperatures (0.3 ...
A. de Visser, K. Bakker, J. Pierre
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Enhanced Negative Thermal Expansion in Lu2W3O12
Journal of Solid State Chemistry, 1998Abstract Negative thermal expansion in the Sc 2 W 3 O 12 family has been pushed to much more pronounced values by substituting a large cation for Sc. X-ray diffraction measurements from 127 to 627°C give a linear thermal expansion coefficient of −6.8×10 −6 /°C for Lu 2 W 3 O 12 compared to −2.2×10 −6 /°C for Sc 2 W 3 O 12 . Negative thermal expansion
P.M. Forster, A. Yokochi, A.W. Sleight
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Negative thermal expansion and oxygen-redox electrochemistry
NatureStructural disorder within materials gives rise to fascinating phenomena, attributed to the intricate interplay of their thermodynamic and electrochemical properties1,2. Oxygen-redox (OR) electrochemistry offers a breakthrough in capacity limits, while inducing structural disorder with reduced electrochemical reversibility3-5.
Bao Qiu +13 more
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Coefficient of thermal expansion of stacked auxetic and negative thermal expansion laminates
physica status solidi (b), 2010AbstractAnalytical expressions for the in‐plane and out‐of‐plane coefficients of thermal expansion for laminates with isotropic laminas are presented herein based on (i) zero net force on the laminate edges, (ii) equal displacement of the lamina edges, and (iii) Hooke's law in three dimensions.
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Thermodynamics of substances with negative thermal expansion and negative compressibility
Journal of Non-Crystalline Solids, 2010Abstract It is shown that for substances with positive thermal expansion and positive compressibility, and for substances with negative thermal expansion and negative compressibility, δQ = d U + P d V , but for substances with positive thermal expansion and negative compressibility, and for substances with negative thermal expansion and positive ...
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Negative thermal expansion in framework compounds
Pramana, 2008We have studied negative thermal expansion (NTE) compounds with chemical compositions of NX2O8 and NX2O7 (N=Zr, Hf and X=W, Mo, V) and M2O (M=Cu, Ag) using the techniques of inelastic neutron scattering and lattice dynamics. There is a large variation in the negative thermal expansion coefficients of these compounds.
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Negative thermal expansion in magnetic materials
Progress in Materials Science, 2021Yuzhu Song, Naike Shi, Shiqing Deng
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Negative thermal expansion in framework structure materials
Coordination Chemistry Reviews, 2021Naike Shi, Yuzhu Song, Xianran Xing
exaly