On the switching between negative and positive thermal expansion in framework materials

Andrea Sanson

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On the switching between negative and positive thermal expansion in framework materials

机译：关于框架材料的正负热膨胀之间的转换

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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 or other methods, the single-well potential energy of the polyhedra rotations (or of the atomic transverse vibrations) responsible for negative thermal expansion (NTE), can be turned into a quartic anharmonic potential or into a double-well potential, thus enhancing or suppressing the NTE, respectively. This result applied to framework materials should be taken into account to overcome the challenge of controlling thermal expansion.

机译：控制热膨胀是材料设计中的挑战。这项工作表明，晶格参数的长度是控制热膨胀的关键因素。通过外部压力，化学或其他方法改变晶格参数，可将负负热膨胀（NTE）的多面体旋转（或原子横向振动）的单阱势能转换为四次非谐能或进入双阱势，从而分别增强或抑制NTE。应该考虑将该结果应用于框架材料，以克服控制热膨胀的挑战。

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《Materials Research Letters》 |2019年第10期|共6页
作者
Andrea Sanson;
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中图分类一般工业技术;
关键词
Controlling thermal expansionnegative thermal expansionframework structures;

机译：控制热膨胀负热膨胀框架结构;

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1. Reversible switching between positive and negative thermal expansion in a metal-organic framework DUT-49 [J] . Garai Bikash, Bon Volodymyr, Efimova Anastasia, Journal of Materials Chemistry, A. Materials for energy and sustainability . 2020,第39期

机译：金属有机框架DUT-49中的正极和负热膨胀之间的可逆切换
2. Spin crossover-induced colossal positive and negative thermal expansion in a nanoporous coordination framework material [J] . Benjamin R. Mullaney, Laurence Goux-Capes, David J. Price, Nature Communications . 2017,第1期

机译：纳米多孔配位骨架材料中自旋交叉诱导的正负热膨胀
3. Colossal Positive and Negative Thermal Expansion in the Framework Material Ag_3[Co(CN)_6] [J] . Andrew L. Goodwin, Mark Calleja, Michael J. Conterio, Science . 2008,第5864期

机译：框架材料Ag_3 [Co（CN）_6]中的正负热膨胀
4. Negative Thermal Expansion Materials: Thermal Stress and Implications for Composite Materials [C] . Michael. B. Jakubinek, Catherine A. Whitman, Maty Anne White 22nd Canadian congress of applied mechanics 2009 (CANCAM 2009) . 2009

机译：负热膨胀材料：热应力及其对复合材料的影响
5. Low temperature synthesis and characterization of some low positive and negative thermal expansion materials. [D] . White, Kathleen Madara. 2006

机译：低温合成和某些低正负热膨胀材料的表征。
6. Spin crossover-induced colossal positive and negative thermal expansion in a nanoporous coordination framework material [O] . Benjamin R. Mullaney, Laurence Goux-Capes, David J. Price, -1

机译：纳米多孔配位骨架材料中自旋交叉诱导的巨大的正负热膨胀
7. Reversible Switching Between Positive and Negative Thermal Expansion in a Metal-Organic Framework DUT-49 [O] . Bikash Garai, Volodymyr Bon, Anastasia A. Efimova, 2020

机译：金属有机框架DUT-49中的正极和负热膨胀之间的可逆切换

On the switching between negative and positive thermal expansion in framework materials

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