Abstract

In future potential outer-space applications, the temperature of outer space associated with cosmic microwave background radiation is around 2-3 K. A mechanical testing apparatus was designed and manufactured for ultralow temperatures below 4.2 K by liquid helium evacuating refrigeration. The minimum temperature of this apparatus could reach ~1.8 K. Using 304 stainless steel validates the equipment’s test ability at ultralow temperatures below 4.2 K. The results showed that the tensile strength of 304 stainless steel decreased anomalously compared with 4.2 K.

Details

Title
The design and experimental research of a mechanical testing apparatus for ultralow temperatures
Author
Huang, Y N 1 ; Sun, W T 2 ; Huang, C J 2 ; Bao, R 1 ; Dai, J J 1 ; Ma, L H 3 ; Wang, W 4 ; Xin, J J 4 ; Shi, L 2 ; Li, L F 1 ; Zhou, Y 1 

1  Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry , Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences , Beijing 100049, China 
2  Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry , Chinese Academy of Sciences, Beijing 100190, China 
3  Research Institute of Interdisciplinary Science & School of Materials Science and Engineering, Dongguan University of Technology , Dongguan 523808, China 
4  Songshan Lake Materials Laboratory , Dongguan 523808, China 
First page
012214
Publication year
2025
Publication date
May 2025
Publisher
IOP Publishing
ISSN
17578981
e-ISSN
1757899X
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1088/1757-899X/1327/1/012214
ProQuest document ID
3214116489
Copyright
Published under licence by IOP Publishing Ltd. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.