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Phase Changing Materials

open access: yesINTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT, 2023
Building envelope is a key element in providing adequate energy and thermal comfort performance to buildings. The main techniques adopted in this context are discussed to identify modern and effective methods with a particular focus on phase change materials (PCMs).
Ujjwal Mali   +3 more
openaire   +1 more source

Phonons of Phase‐Change Materials

open access: yesphysica status solidi (RRL) – Rapid Research Letters, 2022
Phase‐change materials (PCMs) undergo a reversible transition from a semiconducting to a metallic state, nicely termed “incipient metal.” This transition is driven by a Peierls distortion. A model of covalent bonding is developed in a tight‐binding scheme that accounts for the drastic evolution of some properties of PCMs, among which the Grüneisen ...
Gaspard, Jean-Pierre   +2 more
openaire   +1 more source

Composite of CNT foam and phase change material: nano pore structure and the packing of phase change material

open access: yesJournal of Aeronautical Materials, 2019
Thermal energy is a very promising and widely existing energy source. However, the current heat storage method of phase change material not only has a long energy conversion time but also has low heat storage efficiency.
SUN Wei, ZHOU Guoxiang
doaj   +1 more source

VO2: A Phase Change Material for Micromechanics

open access: yesProceedings, 2017
Micro- and nano-mechanical systems may take advantage from using materials having multiple functional characteristics. VO2 is a compound characterised by a solid state phase transition (SSPT) just above room temperature, consisting in a concurrent metal ...
Nicola Manca   +8 more
doaj   +1 more source

Granulation Of Porous Materials with Phase Change Material (PCM)

open access: yesBudownictwo i Architektura, 2021
The paper describes the research on the method of production of granulated phase-change materials (PCM) used in construction industry for the accumulation of thermal energy. As mineral materials for the granules preparation zeolite from fly ash Na-P1 and
Tomasz Bien
doaj   +1 more source

Phase-Change Control of Interlayer Exchange Coupling [PDF]

open access: yes, 2019
Changing the interlayer exchange coupling between magnetic layers in-situ is a key issue of spintronics, as it allows for the optimization of properties that are desirable for applications, including magnetic sensing and memory. In this paper, we utilize
Fan, Xiaofei   +10 more
core   +1 more source

Vanishing‐Harmonicity and Phase‐Change Materials [PDF]

open access: yesphysica status solidi (RRL) – Rapid Research Letters, 2021
Phase‐change material (PCMs) store data using the contrast (electrical or optical) between two phases: a conductive crystalline phase and a weakly conductive amorphous phase. Most PCMs have a distorted octahedral structure. The contrast comes mainly from the electronic structure.
openaire   +2 more sources

Active analog tuning of the phase of light in the visible regime by bismuth-based metamaterials

open access: yesNanophotonics, 2020
The active and analog tuning of the phase of light by metamaterials is needed to boost the switching performance of photonic devices. However, demonstrations of this type of tuning in the pivotal visible spectral region are still scarce.
Garcia-Pardo Marina   +4 more
doaj   +1 more source

Parametric analysis of influencing factors in Phase Change Material Wallboard (PCMW) [PDF]

open access: yes, 2013
Incorporating Phase Change Materials (PCMs) into traditional building structures has been considered as an effective way to reduce the mismatch between energy supply and demand and in turn to minimise energy consumption (cooling/heating energy).
Shire, G. S. F.   +2 more
core   +1 more source

Ductile cooling phase change material

open access: yesNanoscale Advances, 2020
The as-manufactured elastic and flexible hydrogels demonstrate a potential application in the ductile cooling phase-change medium.
Pratahdeep Gogoi   +8 more
openaire   +3 more sources

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