scholarly journals Structural, electronic and kinetic properties of the phase-change material Ge2Sb2Te5 in the liquid state

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Mathias Schumacher ◽  
Hans Weber ◽  
Pál Jóvári ◽  
Yoshimi Tsuchiya ◽  
Tristan G. A. Youngs ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Liquid State ◽  
Kinetic Properties ◽  
Change Material

A hollow microlattice based ultralight active thermal control device and its fabrication techniques and thermal performances

2021 ◽  
Author(s):  
Wenjun Xu ◽  
Longquan Liu ◽  
Junming Chen ◽  
Xinying Lv ◽  
Yongtao Yao
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Forced Convection ◽  
Liquid State ◽  
High Efficiency ◽  
Thermal Control ◽  
Test System ◽  
Control Device ◽  
Active Cooling ◽  
Change Material

Abstract This paper introduces a new thermal control device which has not only low weight and high efficiency but also passive and active cooling capabilities. The thermal control device mainly consists of hollow graphene-enhanced-metallic microlattice material, phase change material (PCM) and a peristatic pump. The PCM is inside the spatial-interconnected millimeter-scale diameter tubes, which are the basic constitution of the hollow microlattice material, in addition, the peristatic pump was connected with the tubes and used to force the liquid-state PCM to circulate inside the interconnected thin tubes. Thus, the proposed thermal control device takes combined advantages of the ultralight and high thermal transfer properties of the hollow graphene-enhanced-metallic microlattice materials, the thermal storage capability of the PCM and forced convection of the PCM driven by the peristatic pump as the PCM is in liquid state. The manufacturing process of the active thermal control device was also developed and proposed, which mainly includes additive manufacturing, composite electroless plating, polymer etching, liquid phase change material injecting and the peristatic pump connecting. In addition to that, a thermal test system was built and the effective thermal conductivities of the thermal control device in passive cooling and with active cooling modes were experimentally studied. The thermal control device can absorb heat and actively dissipate heat by means of forced convection. Consequently, the proposed active thermal control device can be used to guarantee the electronic components and spacecrafts operate in a specific temperature range.

Dynamical Heterogeneity in the Supercooled Liquid State of the Phase Change Material GeTe

2014 ◽  
Vol 118 (47) ◽  
pp. 13621-13628 ◽  
Author(s):  
Gabriele C. Sosso ◽  
Jader Colombo ◽  
Jörg Behler ◽  
Emanuela Del Gado ◽  
Marco Bernasconi
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Liquid State ◽  
Supercooled Liquid ◽  
Dynamical Heterogeneity ◽  
Supercooled Liquid State ◽  
Change Material

NUMERICAL STUDY OF A SOLAR GREENHOUSE DRYER WITH A PHASE-CHANGE MATERIAL AS AN ENERGY STORAGE MEDIUM

2018 ◽  
Vol 49 (6) ◽  
pp. 509-528 ◽  
Author(s):  
Orawan Aumporn ◽  
Belkacem Zeghmati ◽  
Xavier Chesneau ◽  
Serm Janjai
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Numerical Study ◽  
Storage Medium ◽  
Solar Greenhouse ◽  
Change Material

CONTROL OF HEAT RELEASE ENERGY DURING HEATING FROM SOLID-SOLID PHASE CHANGE MATERIAL

2018 ◽  
Author(s):  
Ryohei Gotoh ◽  
Tsuyoshi Totani ◽  
Masashi Wakita ◽  
Harunori Nagata
Keyword(s):  
Phase Change ◽  
Heat Release ◽  
Phase Change Material ◽  
Solid Phase ◽  
Change Material
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