Results 11 to 20 of about 15,798,482 (303)

Phase change material thermoelectric generator

open access: yesHeat and Mass Transfer, 2023
This paper aims to study and analyze a new Peltier cell layout using a PCM in biphasic mode, with the liquid phase encapsulating the p-n junctions and the solid one playing the role of heat sink. The selected PCM is an organic compound that operates within a temperature range corresponding to the melting process.
Armenta Deu, Carlos
openaire   +3 more sources

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   +2 more sources

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

Review on microencapsulated phase change materials (MEPCMs) : fabrication, characterization and applications [PDF]

open access: yes, 2011
The use of latent heat storage, microencapsulated phase change materials (MEPCMs), is one of the most efficient ways of storing thermal energy and it has received a growing attention in the past decade.
Zhao, Changying   +3 more
core   +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).
Tian, Y.   +7 more
core   +1 more source

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

Thermal and rheological properties of microencapsulated phase change materials [PDF]

open access: yes, 2011
The use of microencapsulated phase change materials (MPCMs) is one of the most efficient ways of storing thermal energy. When the microencapsulated phase change material (MPCM) is dispersed into the carrier fluid, microencapsulated phase change slurry ...
Zhao, Changying   +3 more
core   +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

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

Phase change materials and phase change memory

open access: yesMRS Bulletin, 2014
Abstract
Simone Raoux   +3 more
openaire   +3 more sources

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