Comparative study between the fracture stress of poly‐ and single‐crystalline graphene using a novel nanoelectromechanical system structure

2017 ◽  
Vol 12 (11) ◽  
pp. 907-912 ◽  
Author(s):  
Jimmy Ng ◽  
Qi Chen ◽  
Ya‐Hong Xie ◽  
Albert Wang ◽  
Tianru Wu
Keyword(s):  
Comparative Study ◽  
Fracture Stress ◽  
System Structure ◽  
Single Crystalline ◽  
Nanoelectromechanical System

Comparative study on thermodynamic characteristics of composite thermal insulation systems with liquid methane, oxygen, and hydrogen

2021 ◽  
pp. 1-18
Author(s):  
Xiafan Xu ◽  
Jianpeng Zheng ◽  
Hao Xu ◽  
Liubiao Chen ◽  
Junjie Wang
Keyword(s):  
Comparative Study ◽  
Thermal Insulation ◽  
Thermodynamic Characteristics ◽  
Calculation Model ◽  
System Structure ◽  
Insulation System ◽  
Optimal Position ◽  
Heat Leakage ◽  
Cryogenic Liquids ◽  
Liquid Methane

Abstract Composite passive insulation technology has been proved to be an effective method to reduce heat leakage into the cryogenic storage tank. However, the current related research mainly focused on liquid hydrogen (LH2). The thermophysical properties of different cryogenic liquids and the thermal insulation materials at different temperatures are significantly different, so whether the results related to LH2 are applicable to other cryogenic liquids remains to be further determined. In fact, the insulation technology of LH2 itself also needs further study. In this paper, a thermodynamic calculation model of a composite insulation system including hollow glass microspheres (HGMs), multilayer insulation (MLI), and self-evaporating vapor cold shield (VCS) has been established. The accuracy of the calculation model was verified by the experimental results, and a comparative study on thermodynamic characteristics of the composite thermal insulation system with liquid methane, liquid oxygen (LO2), and LH2 was carried out. The results show that the heat leakage reduction of the proposed system for liquid methane, LO2 and LH2 is 25.6%, 29.7% and 64.9% respectively compared to the traditional SOFI+MLI system (1*10−3 Pa). The type of liquid and the insulation system structure has a relatively large influence on the VCS optimal position. While for a specific insulation system structure, the insulation material thickness, storage pressure, and hot boundary temperature have a weak influence on the VCS optimal position.

Comparative study on the antioxidation behaviors of polycrystalline multilayer and single-crystalline monolayer graphene

2D Materials ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 015020 ◽  
Author(s):  
Xin Sun ◽  
Zonghuan Lu ◽  
Tushar Gupta ◽  
Swastik Basu ◽  
Nikhil Koratkar ◽  
...  
Keyword(s):  
Comparative Study ◽  
Monolayer Graphene ◽  
Single Crystalline

Comparative study of global and local magnetization measurements on single crystalline high-Tc superconductors

1998 ◽  
Vol 303 (3-4) ◽  
pp. 191-201 ◽  
Author(s):  
M. Werner ◽  
G. Brandstätter ◽  
F.M. Sauerzopf ◽  
H.W. Weber ◽  
A. Hoekstra ◽  
...  
Keyword(s):  
Comparative Study ◽  
High Tc Superconductors ◽  
Local Magnetization ◽  
High Tc ◽  
Single Crystalline ◽  
Magnetization Measurements ◽  
Global And Local

Strongly dissimilar vortex-liquid regimes in single-crystalline NdFeAs(O,F) and(Ba,K)Fe2As2: A comparative study

2009 ◽  
Vol 80 (1) ◽  
Author(s):  
J. Kacmarcik ◽  
C. Marcenat ◽  
T. Klein ◽  
Z. Pribulova ◽  
C. J. van der Beek ◽  
...  
Keyword(s):  
Comparative Study ◽  
Single Crystalline ◽  
Vortex Liquid

A comparative study of the electrical properties of heavily Al implanted, single crystalline and nanocrystalline SiC

2006 ◽  
Vol 99 (12) ◽  
pp. 123716 ◽  
Author(s):  
V. Heera ◽  
K. N. Madhusoodanan ◽  
W. Skorupa ◽  
C. Dubois ◽  
H. Romanus
Keyword(s):  
Electrical Properties ◽  
Comparative Study ◽  
Single Crystalline
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