Journal ArticleDOI
Negative thermal expansion materials
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In this article, the authors give an overview of some of the physical phenomena that can give rise to negative thermal expansion and some of their unusual structural properties, and discuss the structural properties of such materials.Abstract:
The vast majority of materials have a positive coefficient of thermal expansion and their volume increases on heating. There has been considerable recent interest in materials which display the unusual property of contracting in volume on heating; i.e. those with a negative coefficient of thermal expansion. This Perspective gives an overview of some of the physical phenomena that can give rise to this unusual effect. Recent insights into negative thermal expansion materials and some of their unusual structural properties are discussed.read more
Citations
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Journal ArticleDOI
Mechanical metamaterials associated with stiffness, rigidity and compressibility: a brief review
TL;DR: In this article, a clear classification of mechanical metamaterials have been established based on the fundamental material mechanics, which can be divided into strong-lightweight (E/ρ), pattern transformation with tunable stiffness, negative compressibility (−4G/3), and strong light-weight (S/ρ).
Journal ArticleDOI
Giant negative thermal expansion in Ge-doped anti-perovskite manganese nitrides
Koshi Takenaka,Hidenori Takagi +1 more
TL;DR: In this article, a large negative thermal expansion (NTE) up to α =−25×10−6K−1 (α: coefficient of linear thermal expansion) in Ge-doped anti-perovskite manganese nitrides Mn3AN (A=Cu,Zn,Ga).
Journal ArticleDOI
Negative thermal expansion in functional materials: controllable thermal expansion by chemical modifications
TL;DR: NTE is reviewed in functional materials of ferroelectrics, magnetics, multiferroics, superconductors, temperature-induced electron configuration change and so on, in which NTE is determined by either ferroelectric order or magnetic one.
Journal ArticleDOI
Negative thermal expansion
TL;DR: In this article, the underlying thermodynamics, emphasizing the roles of thermal stress and elasticity, are reviewed, and vibrational and non-vibrational mechanisms operating on the atomic scale that are responsible for negative expansion in a wide range of materials.
Journal ArticleDOI
Pronounced Negative Thermal Expansion from a Simple Structure: Cubic ScF3
Benjamin K. Greve,Kenneth L. Martin,Peter L. Lee,Peter J. Chupas,Karena W. Chapman,Angus P. Wilkinson +5 more
TL;DR: Scandium trifluoride is the first material with this structure to provide a clear experimental illustration of how negative thermal expansion can arise from the thermally induced rocking of rigid structural units for NTE.
References
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Journal ArticleDOI
Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides
TL;DR: The effective ionic radii of Shannon & Prewitt [Acta Cryst. (1969), B25, 925-945] are revised to include more unusual oxidation states and coordinations as mentioned in this paper.
Journal ArticleDOI
Negative Thermal Expansion from 0.3 to 1050 Kelvin in ZrW2O8
TL;DR: Negative thermal expansion was found for ZrW 2 O 8 from 0.3 kelvin to its decomposition temperature of about 1050 klvin by using both neutron and x-ray diffraction data as mentioned in this paper.
Journal ArticleDOI
Precise determination of lattice parameter and thermal expansion coefficient of silicon between 300 and 1500 K
Yasumasa Okada,Yozo Tokumaru +1 more
TL;DR: In this paper, the lattice parameter of high-purity silicon is measured as a function of temperature between 300 and 1500 K, and the linear thermal expansion coefficient is accurately determined.
Journal ArticleDOI
Design of materials with extreme thermal expansion using a three-phase topology optimization method
Ole Sigmund,Salvatore Torquato +1 more
TL;DR: In this article, a three-phase topology optimization method was proposed to find the distribution of material phases that optimizes an objective function (e.g. thermoelastic properties) subject to certain constraints, such as elastic symmetry or volume fractions of the constituent phases, within a periodic base cell.
Journal ArticleDOI
Very Low Thermal Expansion Coefficient Materials
TL;DR: In this article, a review of the properties of low-expansion materials is presented, where the authors focus on the anomalously low thermal expansion properties in which there is the greatest interest.