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Showing 1 to 20 of 94 for “"Phase change materials"”.
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Evaluation of phase change materials for reconfigurable interconnects
… interconnect vias using an indirectly heated phase change material is evaluated. Process development and materials investigations are examined. Devices capable of multiple cycles between on/off states for reconfigurable applications have been successfully demonstrated in a standard …
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Dynamics and rheology of soft phase-change materials
… processes involve multicomponent or composite materials in which one component can undergo a phase transition leading to the appearance of a solid phase dispersed in a liquid-like continuous phase. Examples of soft phase-change materials can be found in a variety of applications from food …
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Crystal-Amorphous Transformation Via Defect-Templating in Phase-Change Materials
Phase-change materials (PCM) such as GeTe and Ge-Sb-Te alloys are potential candidates for non-volatile memory applications, because they can reversibly and rapidly transform between a crystalline phase and an amorphous phase with medium-range order. Traditionally, crystal-amorphous transformation …
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Modelling the effects on building temperatures of phase change materials
… problems motivated by the possibility of use of phase change materials in buildings are presented. First, a model for the response of phase change material (PCM) to a varying room temperature is extended, and applied to realistic situations in a building. For a spatially varying distribution of …
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Improving the reliability of optical phase change materials-based devices
… of these devices. Chalcogenide optical phase change materials (PCM) (e.g. Ge₂Sb₂Te₅) have gathered sustained interest in the past several years in the photonics community exactly due to their potential for non-volatile control of optical signals. Prior work had showcased the integration …
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Thermal Energy Storage Aggregate using Low-Cost Organic Phase Change Materials
… envelope performance. Thus, creating building materials capable of enhancing energy efficiency in the buildings is crucial. On the other hand, the icing of pavements during cold temperatures represents significant pedestrian and vehicle safety concerns. De-icing salts and other routine winter …
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New chalcogenide-based phase-change materials for potential data storage applications
Phase-change materials are defined here as materials that undergo reversible, thermally activatedglass-to-crystal transformations. These materials are utilized commercially in datastorage media such as rewriteable CDs and DVDs as a way to reversibly encode binary data.The current industry standards …
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Reconfigurable Photonics based on Broadband Low-loss Optical Phase Change Materials
Optical phase change materials (O-PCMs), a unique group of materials featuring drastic optical property contrast upon solid-state phase transition, have found widespread adoption in photonic switches and routers, reconfigurable meta-optics, reflective display, and optical neuromorphic computers. …
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Computational optimization of phase change materials on adsorbed carbon dioxide capture systems
… of novel adsorbent structures composited with phase change materials (PCM) optimized in selected design applications. The design applications include internally coated hollow fibers, externally coated annular finned tube, and a storage vessel which are presented in reduced computational form. …
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Experimental and theoretical investigation of novel phase change materials for thermal applications
… of R134a clathrates with additives, as phase change materials (PCMs). PCMs’ charging characteristics are analysed and evaluated for cooling applications. The formation of refrigerant clathrates is investigated due to their potential use in active as well as in passive cooling …
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Heat Transfer Enhancement of Phase Change Materials for Thermal Energy Storage Systems
… recent studies, the energy storage capability of phase change materials (PCMs) in thermal energy storage systems, such as in the case of solar water heaters has attracted many attentions; however, PCMs may not be fully effective due to their poor heat transfer characteristics, namely thermal …
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Microencapsulated phase change materials for thermal energy storage: development, evaluation, and application
Phase change materials (PCMs) have received increasing interest lately for potential use in heat transfer and thermal energy storage (TES) applications due to their high energy storage density. The major obstacle limiting more widespread application of PCMs is containment of the liquid phase to …
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Silica micro-encapsulation of organic phase-change materials for thermal energy storage
… and storage are our main levers to fight climate change. As the battery industry struggles to manufacture cheap, cyclable and safe systems, thermal energy storage recently became a more active area of research, promising cheap and cyclable storage materials. In the U.S., nearly 70% of the energy …
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Application of Phase Change Materials for Peak Load Shifting Through Price-Based Control Method
This study proposed the application of phase change materials (PCM) in buildings in combination with a price-based control method for peak load-shifting application. A pricebased control method was proposed which would be able to use online real-time electricity price data to use electricity when …
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Optical and Electronic Properties, Nanoscale Structural Order, and Transformation Kinetics of Phase Change Materials
One long standing puzzle was that, for a fixed composition, there may be different amorphous states that have greatly different crystallization kinetics. We provided clear evidence for the existence of nanoscale structural order in all amorphous states of Ge2Sb2Te5 and AgInSbTe, using Fluctuation …
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Measuring and modeling thermal conductivity of hydrogel phase change materials for thermal energy storage
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-08-01
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Investigation of nanoparticles enriched phase change materials for improved thermal performance of energy storage applications
… of the integration of nanoparticles into phase change materials (PCMs) to improve thermal energy storage (TES) performance across various applications. By leveraging nanoparticles, the thermal conductivity and heat transfer characteristics of PCMs are improved, enabling faster charging and …
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