Low-temperature characteristics of 0.35 µm AlSb/InAs HEMTs

1994 ◽  
Vol 30 (16) ◽  
pp. 1358-1359 ◽  
Author(s):  
W. Kruppa ◽  
J.B. Boos
Keyword(s):  
Low Temperature ◽  
Temperature Characteristics

CRYOGENIC GREASE LUBRICANTS FOR ROCKET AND SPACE TECHNOLOGY

2021 ◽  
pp. 31-41
Author(s):  
Andrey D. PLOTNIKOV ◽  
Aleksandr V. VODOLAZHSKIY ◽  
Natalya S. YAKUPOVA
Keyword(s):  
Chemical Composition ◽  
Low Temperature ◽  
Key Words ◽  
Ir Spectrum ◽  
Practical Relevance ◽  
Space Technology ◽  
Potential Evaporation ◽  
Testing Methods ◽  
Solidification Temperature ◽  
Temperature Characteristics

The paper represents requirements for cryogenic grease lubricants used in the rocket and space technology. Data on lubricants based on perfluoropolyether liquid FEN is provided. New lubricant testing methods enabling to analyze their chemical composition and low-temperature characteristics are proposed. Quoted are investigation results for the equivalents of previously used cryogenic lubricants NIKA, NIRA and «Ametist». A practical relevance of the paper has been proven by introduction of low-temperature lubricants «Sever» currently being used in rocket and space items, as well аs successful application of the developed lubricant incoming inspection procedures at RSC Energia. Key words: low-temperature lubricant, perfluoropolyether liquid FEN, viscosity, solidification temperature, IR spectrum, potential evaporation.

scholarly journals Low Temperature Characteristics of Hydrogen Storage Alloy LaMm-Ni4.1Al0.3Mn0.4Co0.45 for Ni-MH Batteries

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4220
Author(s):  
Malgorzata Karwowska ◽  
Karol J. Fijalkowski ◽  
Andrzej A. Czerwiński
Keyword(s):  
Low Temperature ◽  
Hydrogen Storage ◽  
High Reliability ◽  
Alkali Metal Hydroxide ◽  
Type Alloy ◽  
Temperature Characteristics ◽  
Nickel Hydride ◽  
And Diffusion ◽  
Diffusion Of Hydrogen ◽  
Storage Properties

Nickel hydride batteries (Ni-MH) are known of their good performance and high reliability at temperatures below 0 °C, which is significantly dependent on electrolyte composition. Here we present the low temperature characteristics of pristine AB5-type alloy, LaMm-Ni4.1Al0.3Mn0.4Co0.45, determined in various alkali metal hydroxide solutions. We found that the combination of KOH with NaOH showed a significant effect of enhancement of low temperature performance of the electrode material and diffusion of hydrogen in the alloy. This 6M binary mixed NaOH/KOH electrolyte, comprising 4M KOH component and 2M NaOH component, made it possible to maintain 81.7% and 61.0% of maximum capacity at −20 °C and −30 °C, respectively, enhancing the hydrogen storage properties of the alloy after reheating to room temperature.

Improvement in discharge rate and low temperature characteristics of lithium—iodine cells

1985 ◽  
Vol 14 (1-3) ◽  
pp. 173-177 ◽  
Author(s):  
Min-Liang Lin ◽  
Ye-Xian Jin ◽  
Yong-Zhen Zhang ◽  
Yu-Feng Hou
Keyword(s):  
Low Temperature ◽  
Discharge Rate ◽  
Temperature Characteristics

Oil resistance and low‐temperature characteristics of plasticized nitrile butadiene rubber compounds

2019 ◽  
Vol 136 (32) ◽  
pp. 47851 ◽  
Author(s):  
Do Young Kim ◽  
Gi Hong Kim ◽  
Gi Myeong Nam ◽  
Dong Gug Kang ◽  
Kwan Ho Seo
Keyword(s):  
Low Temperature ◽  
Butadiene Rubber ◽  
Temperature Characteristics ◽  
Oil Resistance ◽  
Nitrile Butadiene Rubber ◽  
Rubber Compounds

Low Temperature Characteristics of Elastomers

1947 ◽  
Vol 39 (9) ◽  
pp. 1108-1115 ◽  
Author(s):  
S. D. Gehman ◽  
D. E. WoodFord ◽  
C. S. Wilkinson
Keyword(s):  
Low Temperature ◽  
Temperature Characteristics
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