Results 101 to 110 of about 3,361,012 (213)

Phase change convective heat transfer in high porosity cellular metal foams

, 2013
This Chapter discusses phase change convective heat transfer of high porosity cellular metal foams and their practical applications in thermal energy storage (TES).
Tian, Yuan, Wang, Qian, Zhao, Changying
core  

SPS-prepared targets for sputtering deposition of phase change films. [PDF]

, 2011
Phase-change materials like thin films from the systems [Ge1-xPbx]Te and Ge[Te1-xSex] are of interest for data storage. For these compositions amorphous materials can not be obtained by melt quenching.
Chevallier, Geoffroy, Essi, Marc Marie-Maurice Meledge, Estournès, Claude, Pradel, Annie, Yot, Pascal   +4 more
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Microgravity fluid management requirements of advanced solar dynamic power systems [PDF]

The advanced solar dynamic system (ASDS) program is aimed at developing the technology for highly efficient, lightweight space power systems. The approach is to evaluate Stirling, Brayton and liquid metal Rankine power conversion systems (PCS) over the ...
Migra, Robert P.
core   +1 more source

Optical Phase Change Materials

Annual Review of Materials Research
The properties of chalcogenide phase change materials have long attracted the scientific community due to a combination of state retention (i.e., memory) and a large contrast in electrical and optical properties between different solid phases. The last decade has witnessed a vast interest in utilizing this material family for optics and photonics ...
Yi-Siou Huang, Chih-Yu Lee, Ichiro Takeuchi, Carlos A. Ríos Ocampo   +3 more
openaire   +1 more source

2D cognitive optical data processing with phase change materials

We demonstrate high-density, multi-level crystallization of a Ge2Sb2Te5 thin film using tightly focused femtosecond laser pulses. The optical reflectivity in each distinct phase states level is characterized for applications in ultra-fast cognitive ...
Craig, C., Hewak, D.W., MacDonald, K.F., Maddock, Jonathan, Rogers, E.T.F., Roy, Tapashree, Wang, Q., Zheludev, N.I.   +7 more
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Versatile spaceborne photonics with chalcogenide phase-change materials

npj Microgravity
Recent growth in space systems has seen increasing capabilities packed into smaller and lighter Earth observation and deep space mission spacecraft. Phase-change materials (PCMs) are nonvolatile, reconfigurable, fast-switching, and have recently shown a ...
Hyun Jung Kim, Matthew Julian, Calum Williams, David Bombara, Juejun Hu, Tian Gu, Kiumars Aryana, Godfrey Sauti, William Humphreys   +8 more
doaj   +1 more source

Design of Multifunctional Polarization Waveplates Based on Thermal Phase-Change Metasurfaces

Crystals
The switching function of traditional waveplates necessitates mechanical replacement or the superimposition of multiple waveplates, which gives rise to a complex system and a large volume.
Bo Cheng, Yuxiao Zou, Zihui Ge, Longfeng Lv, Taohua Liang, Kunpeng Zhai, Guofeng Song   +6 more
doaj   +1 more source

The nature of engineering change in a complex product development cycle [PDF]

, 2009
The complex dynamics of modern business mean companies are constantly exposed to rapid and radical change. The way by which a company copes with change, can act as an insight into its propensity for sustainable profitability and hence predicted longevity.
Boyle, I.M., Duffy, Alex H.B., EPSRC and Babcock Marine (Funder), Masson, Nick, Babcock Marine, Rosyth, Rowell, William   +4 more
core   +1 more source

Review of Thermal Energy Storage Materials for Application in Large-Scale Integrated Energy Systems—Methodology for Matching Heat Storage Solutions for Given Applications

Energies
This article is a broad literature review of materials used and defined as potential for heat storage processes. Both single-phase and phase-change materials were considered.
Michał Jurczyk, Tomasz Spietz, Agata Czardybon, Szymon Dobras, Karina Ignasiak, Łukasz Bartela, Wojciech Uchman, Jakub Ochmann   +7 more
doaj   +1 more source

Chalcogenide phase change materials for nanoscale switching

Since the demonstration of threshold switching in chalcogenide alloys over forty five years ago, phase change materials have been extensively investigated for switching and data storage applications.
Gholipour, B., Hewak, D.W., Huang, C.C., Knight, K., Li, S., MacDonald, K.F., Sámson, Z.L., Zheludev, N.I.   +7 more
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