Results 21 to 30 of about 77,031 (254)
Materials & Design, 2021 Metamaterials have been extensively investigated owing to their unusual properties. However, the design of multifunctional metamaterials requires further investigation.
Xing Zhang +4 more
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Crystals, 2023 Due to the structural stability and high adjustability of perovskite, lead-free perovskite ceramics are widely thought to be one of the most promising functional materials.
Huifen Yu, Liang Chen, Chang Zhou, He Qi
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APL Materials, 2017 Materials with zero thermal expansion (ZTE) or precisely tailored thermal expansion are in urgent demand of modern industries. However, the overwhelming majority of materials show positive thermal expansion.
Fei-Ran Shen +15 more
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On the switching between negative and positive thermal expansion in framework materials
Materials Research Letters, 2019 The control of thermal expansion represents a challenge in materials design. This work shows that the length of the lattice parameter is a key element for controlling thermal expansion. By varying the lattice parameter through external pressure, chemical
Andrea Sanson
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EXAFS and negative thermal expansion in CdTe
Journal of Physics: Conference Series, 2009 CdTe is affected by a low-temperature negative thermal expansion (NTE) of the lattice parameter, whose strength and temperature interval are intermediate between those of the iso-structural crystals Ge and CuCl. EXAFS measurements have been performed on CdTe from 19 to 300 K.
N. Abd El All +7 more
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Which phonons contribute most to negative thermal expansion in ScF3?
APL Materials, 2023 Using calculations of the phonon distribution in ScF3 across the whole of reciprocal space, we show that the important phonons for the negative thermal expansion in this material are those associated with the rigid unit modes (RUMs) and associated quasi ...
Martin T. Dove +4 more
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Optimized negative thermal expansion property in low-cost Mg2P2O7-based bulk material
Results in Physics, 2022 Negative thermal expansion (NTE) is an intriguing physical phenomenon, which is of great significance for the high precision application. In this work, we have realized to broaden the NTE temperature zone in Mg2P2O7-based bulk material by doping Cu atom ...
Yige Du +8 more
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Mechanisms and Materials for NTE
Frontiers in Chemistry, 2018 Negative thermal expansion (NTE) upon heating is an unusual property but is observed in many materials over varying ranges of temperature. A brief review of mechanisms for NTE and prominent materials will be presented here.
J. Paul Attfield
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Negative thermal expansion of water in hydrophobic nanospaces [PDF]
Phys. Chem. Chem. Phys., 2012 The density and intermolecular structure of water in carbon micropores (w = 1.36 nm) are investigated by small-angle X-ray scattering (SAXS) and X-ray diffraction (XRD) measurements between 20 K and 298 K. The SAXS results suggest that the density of the water in the micropores increased with increasing temperature over a wide temperature range (20-277
Ryusuke, Futamura +3 more
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Negative Thermal Expansion Properties of Sm0.85Sr0.15MnO3-δ
Journal of Composites Science, 2022 A novel negative thermal expansion (NTE) material composed of Sm0.85Sr0.15MnO3-δ was synthesized using the solid-state method. By allowing Sr2+ to partially replace Sm3+ in SmMnO3, the ceramic material Sm0.85Sr0.15MnO3-δ exhibits NTE properties between 360K and 873K, and its average negative thermal expansion coefficient was −10.08 × 10−6/K.
Yucheng Li +3 more
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