phase change phenomena during high power laser materials
phase change phenomena during high power laser materials
... studies reveal phase change mechanisms during high power laser interaction with metal. © 2000 Elsevier Science S.A. All rights reserved. Keywords : Phase change phenomena; High power; Laser- materials ... USA Abstract This work investigates phase change phenomena due to high power pulsed laser irradiation. During high power laser heating, the intense...
Ngày tải lên: 06/05/2014, 09:01
Experimental and numerical investigation of heat transferand phase change phenomena during excimer laser interactionwith nickel
... explosive phase change occurs at a laser ~uence of about 4[1 J cm −1 [ 2[ Numerical modeling Numerical modeling is carried out to compute the heat transfer and phase change processes during excimer laser evaporation[ ... work investigates heat transfer and phase change phenomena during excimer laser interaction with nickel specimens[ Based on time!resolved measurements...
Ngày tải lên: 06/05/2014, 08:55
Experimental study of passive cooling of building facade using phase change materials to increase thermal comfort in buildings in hot humid areas
... most building materials and have a high latent heat per unit weight and low vapor pressure [14]. Their disadvantages are low thermal conductivity, high changes in volume on phase change and flammability. ... storage; Phase change material; Sustainable design; Technology thermal comfort. 1. Introduction The worldwide economical and technological development requires hig...
Ngày tải lên: 05/09/2013, 17:03
Scientific Assessment of High-Power Free-Electron Laser Technology doc
... SCIENTIFIC ASSESSMENT OF HIGH- POWER FREE-ELECTRON LASER TECHNOLOGY 4. Despite the significant technical progress made in the development of high- average -power free- electron lasers, difficult technical ... SCIENTIFIC ASSESSMENT OF HIGH- POWER FREE-ELECTRON LASER TECHNOLOGY Another obstacle to scale-up to very high powers for the SSL comes from the limitations in combining c...
Ngày tải lên: 28/03/2014, 11:20
jht xu willis non equilibrium phase change in metal induced by ns pulsed laser irradiation
... ‘‘Interface Kinetics during Pulsed Laser Ab- lation,’’ Appl. Phys. A., 69, pp. S869–S873. ͓12͔ Xu, X., and Song, K. H., 2000, ‘ Phase Change Phenomena during High Power Laser- Materials Interaction,’’ ... occurred at lower laser fluences ͓14͔. This paper is concerned with energy transport and phase change in metal induced by a high power nanosecond pulsed laser, wi...
Ngày tải lên: 06/05/2014, 08:55
molecular dynamics simulation of heat transfer and phase change during
... induced by a picosecond laser pulse. Laser Induced Phase Change In this section, various phenomena accompanying phase change in an argon target illuminated with a laser pulse of 0.7 J/m 2 ... uncertainty. Laser heating of argon with different laser fluences is investigated. Laser induced heat transfer, melting, evaporation, material ablation are emphasized in thi...
Ngày tải lên: 06/05/2014, 08:55
molecular dynamics simulation of heat transfer and phase change during
... induced by a picosecond laser pulse. Laser Induced Phase Change In this section, various phenomena accompanying phase change in an argon target illuminated with a laser pulse of 0.7 J/m 2 ... uncertainty. Laser heating of argon with different laser fluences is investigated. Laser induced heat transfer, melting, evaporation, material ablation are emphasized in thi...
Ngày tải lên: 06/05/2014, 08:57
molecular dynamics simulation of heat transfer and phase change during
... induced by a picosecond laser pulse. Laser Induced Phase Change In this section, various phenomena accompanying phase change in an argon target illuminated with a laser pulse of 0.7 J/m 2 ... uncertainty. Laser heating of argon with different laser fluences is investigated. Laser induced heat transfer, melting, evaporation, material ablation are emphasized in thi...
Ngày tải lên: 06/05/2014, 08:59
Increasing energy efficiency of HVAC systems of buildings using phase change material
... Storage by Latent Heat Using Phase Change Materials. Energy Conversion and Management 2004, 45, 263-275. [14] Richardson M.J., Woods A.W., An Analysis of Phase Change Material as Thermal Mass. ... Energy & Environment Foundation. All rights reserved. 669 1.4 Phase change material layers The addition of a phase change material (PCM) into the external wall of a buildin...
Ngày tải lên: 05/09/2013, 15:28