Using High Speed Phase Change Material for ${\rm DVD}+{\rm RW}$ 2.4x Dual Layer

2007 ◽  
Vol 43 (2) ◽  
pp. 859-860 ◽  
Author(s):  
Kuan-Lan Fang ◽  
Pang-Chi Liu ◽  
Shih-Hsien Ma ◽  
Han-Feng Chang ◽  
Don-Yau Chiang
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
High Speed ◽  
Change Material

Rhenium doped Sb2Te phase change material with ultrahigh thermal stability and high speed

2021 ◽  
Vol 863 ◽  
pp. 158583
Author(s):  
Junshi Zhao ◽  
Qi Liang ◽  
Ying Chen ◽  
Sifan Zhang ◽  
Zhitang Song ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Phase Change ◽  
Phase Change Material ◽  
High Speed ◽  
Change Material

Tungsten-doped Ge2Sb2Te5 phase change material for high-speed optical switching devices

2020 ◽  
Vol 116 (13) ◽  
pp. 131901
Author(s):  
Pengfei Guo ◽  
Joshua A. Burrow ◽  
Gary A. Sevison ◽  
Heungdong Kwon ◽  
Christopher Perez ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
High Speed ◽  
Optical Switching ◽  
Optical Switching Devices ◽  
Change Material ◽  
Switching Devices

scholarly journals Catalyst-loaded micro-encapsulated phase change material for thermal control of exothermic reaction

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Tatsuya Takahashi ◽  
Hiroaki Koide ◽  
Hiroki Sakai ◽  
Daisuke Ajito ◽  
Ade Kurniawan ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
High Speed ◽  
Storage Capacity ◽  
Heat Storage ◽  
Catalyst Support ◽  
Exothermic Reaction ◽  
Thermal Control ◽  
Ni Catalyst ◽  
Change Material

AbstractCO2 methanation is a promising technology to enable the use of CO2 as a resource. Thermal control of CO2 methanation, which is a highly active exothermic reaction, is important to avoid thermal runaway and subsequent degradation of the catalyst. Using the heat storage capacity of a phase change material (PCM) for thermal control of the reaction is a novel passive approach. In this study a novel structure was developed, wherein catalysts were directly loaded onto a micro-encapsulated PCM (MEPCM). The MEPCM was prepared in three steps consisting of a boehmite treatment, precipitation treatment, and heat oxidation treatment, and an impregnation process was adopted to prepare a Ni catalyst. The catalyst-loaded MEPCM did not show any breakage or deformation of the capsule or a decrease in the heat storage capacity after the impregnation treatment. MEPCM demonstrated a higher potential as an alternative catalyst support in CO2 methanation than the commercially available α-Al2O3 particle. In addition, the heat storage capacity of the catalyst-loaded MEPCM suppressed the temperature rise of the catalyst bed at a high heat absorption rate (2.5 MW m−3). In conclusion, the catalyst-loaded MEPCM is a high-speed, high-precision thermal control device because of its high-density energy storage and resolution of a spatial gap between the catalyst and cooling devices. This novel concept has the potential to overcome the technical challenges faced by efficiency enhancement of industrial chemical reactions.

Phase change material W0.04(Sb4Te)0.96 for application in high-speed phase change memory

2014 ◽  
Vol 594 ◽  
pp. 82-86 ◽  
Author(s):  
Kun Ren ◽  
Feng Rao ◽  
Zhitang Song ◽  
Shilong Lu ◽  
Cheng Peng ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
High Speed ◽  
Phase Change Memory ◽  
Change Material ◽  
Change Memory

Phase-change material Ge0.61Sb2Te for application in high-speed phase change random access memory

2013 ◽  
Vol 102 (10) ◽  
pp. 103110 ◽  
Author(s):  
Yifeng Gu ◽  
Sannian Song ◽  
Zhitang Song ◽  
Suyuan Bai ◽  
Yan Cheng ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
High Speed ◽  
Random Access ◽  
Random Access Memory ◽  
Access Memory ◽  
Change Material

scholarly journals Catalyst-loaded Micro-encapsulated Phase Change Material for Thermal Control of Exothermic Reaction

2020 ◽  
Author(s):  
Tatsuya Takahashi ◽  
Hiroaki Koide ◽  
Hiroki Sakai ◽  
Daisuke Ajito ◽  
Ade Kurniawan ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
High Speed ◽  
Storage Capacity ◽  
Heat Storage ◽  
Catalyst Support ◽  
Exothermic Reaction ◽  
Thermal Control ◽  
Ni Catalyst ◽  
Change Material

Abstract CO2 methanation is a promising technology to enable the use of CO2 as a resource. Thermal control of CO2 methanation, which is a highly active exothermic reaction, is important to avoid thermal runaway and subsequent degradation of the catalyst. Using the heat storage capacity of a phase change material (PCM) for thermal control of the reaction is a novel passive approach. In this study a novel structure was developed, wherein catalysts were directly loaded onto a micro-encapsulated PCM (MEPCM). The MEPCM was prepared in three steps consisting of a boehmite treatment, precipitation treatment, and heat oxidation treatment, and an impregnation process was adopted to prepare a Ni catalyst. The catalyst-loaded MEPCM did not show any breakage or deformation of the capsule or a decrease in the heat storage capacity after the impregnation treatment. MEPCM demonstrated a higher potential as an alternative catalyst support in CO2 methanation than the commercially available α-Al2O3 particle. In addition, the heat storage capacity of the catalyst-loaded MEPCM suppressed the temperature rise of the catalyst bed at a high heat absorption rate (2.4 MW m-3). In conclusion, ​the catalyst-loaded MEPCM is a high-speed, high-precision thermal control device because of its high-density energy storage and resolution of a spatial gap between the catalyst and cooling devices. This novel concept has the potential to overcome the technical challenges faced by efficiency enhancement of industrial chemical reactions.

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
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