Microstructure and crystallization kinetics of Ge2Sb2Te5–Sn phase change materials

The crystal growth rates of supercooled liquids In–Sb–Te can be well characterized by ultrafast DSC, and it benefits to the optimization for phase-change materials.

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Mapping Crystallization Kinetics of Phase-Change Materials Over Large Temperature Ranges Using Complementary In Situ Microscopy Techniques

Microscopy and Microanalysis ◽

10.1017/s1431927618009820 ◽

2018 ◽

Vol 24 (S1) ◽

pp. 1868-1869

Author(s):

Victoriea L. Bird ◽

Al J. Rise ◽

Khim Karki ◽

Daan Hein Alsem ◽

Geoffrey H. Campbell ◽

...

Keyword(s):

Phase Change ◽

Crystallization Kinetics ◽

Phase Change Materials ◽

Large Temperature ◽

Temperature Ranges ◽

Microscopy Techniques ◽

Kinetics Of

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Thermodynamics and kinetics of glassy and liquid phase-change materials

Materials Science in Semiconductor Processing ◽

10.1016/j.mssp.2021.106094 ◽

2021 ◽

Vol 135 ◽

pp. 106094

Author(s):

Narges Amini ◽

Julian Pries ◽

Yudong Cheng ◽

Christoph Persch ◽

Matthias Wuttig ◽

...

Keyword(s):

Liquid Phase ◽

Phase Change ◽

Phase Change Materials ◽

Thermodynamics And Kinetics ◽

Kinetics Of

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Cement-Based Renders Manufactured with Phase-Change Materials: Applications and Feasibility

Advances in Materials Science and Engineering ◽

10.1155/2016/7254823 ◽

2016 ◽

Vol 2016 ◽

pp. 1-6 ◽

Cited By ~ 10

Author(s):

Luigi Coppola ◽

Denny Coffetti ◽

Sergio Lorenzi

Keyword(s):

Compressive Strength ◽

Phase Change ◽

Phase Change Materials ◽

Residential Buildings ◽

Setting Time ◽

Drying Shrinkage ◽

Hydration Kinetics ◽

Mechanical Performances ◽

Entrapped Air ◽

Kinetics Of

The paper focuses on the evaluation of the rheological and mechanical performances of cement-based renders manufactured with phase-change materials (PCM) in form of microencapsulated paraffin for innovative and ecofriendly residential buildings. Specifically, cement-based renders were manufactured by incorporating different amount of paraffin microcapsules—ranging from 5% to 20% by weight with respect to binder. Specific mass, entrained or entrapped air, and setting time were evaluated on fresh mortars. Compressive strength was measured over time to evaluate the effect of the PCM addition on the hydration kinetics of cement. Drying shrinkage was also evaluated. Experimental results confirmed that the compressive strength decreases as the amount of PCM increases. Furthermore, the higher the PCM content, the higher the drying shrinkage. The results confirm the possibility of manufacturing cement-based renders containing up to 20% by weight of PCM microcapsules with respect to binder.

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Phase Change Materials - From Structures to Kinetics

MRS Proceedings ◽

10.1557/proc-0918-h04-03 ◽

2006 ◽

Vol 918 ◽

Cited By ~ 1

Author(s):

Matthias Wuttig ◽

Wojciech Welnic ◽

Ralf Detemple ◽

Henning Dieker ◽

Johannes Kalb ◽

...

Keyword(s):

Phase Change ◽

Crystalline State ◽

Phase Change Materials ◽

Amorphous State ◽

Structural Difference ◽

Fast Time ◽

Optical Contrast ◽

Fast Time Scale ◽

Kinetics Of ◽

Structure Properties

AbstractPhase change materials possess a unique combination of properties which include a pronounced property contrast between the amorphous and crystalline state, i.e. a high electrical and optical contrast. In particular the latter observation is indicative for a considerable structural difference between the amorphous and crystalline state. At the same time the crystallization of the amorphous state proceeds on a fast time scale. This raises the question how structure, properties and kinetics are related in phase change alloys. It will be demonstrated that only a small group of covalent semiconductors with octahedral-like coordination has the required property combination. This is related to their thermodynamic properties which govern the kinetics of crystallization.

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