Results 21 to 30 of about 78,610 (291)

Design and Analysis of Cryogenic Cooling System for Electric Propulsion System Using Liquid Hydrogen

Energies, 2023
As the demand for eco-friendly energy increases, hydrogen energy and liquid hydrogen storage technologies are being developed as an alternative. Hydrogen has a lower liquefaction point and higher thermal conductivity than nitrogen or neon used in general
Gi-Dong Nam, Hae-Jin Sung, Dong-Woo Ha, Hyun-Woo No, Tea-Hyung Koo, Rock-Kil Ko, Minwon Park   +6 more
doaj   +1 more source

Cryogenic Stress-Driven Grain Growth Observed via Microcompression with in situ Electron Backscatter Diffraction [PDF]

, 2020
The deformation of materials at cryogenic temperature is of interest for space, arctic, and fundamental science applications. In this work, a custom-built cooling system attached to a commercial picoindenter was used for in situ cryogenic ...
Bair, JL, Frazer, D, Homer, ER, Hosemann, P   +3 more
core  

Performance of Liquid Nitrogen (LN2) on Machining Pure Titanium (Grade 2): A Comparative Study [PDF]

MATEC Web of Conferences
The biggest challenge for manufacturing industries is machining super alloys due to their properties. Titanium grade 2 also comes under the category of difficult cut material.
Chintalapudi Ravikiran, Burri Srinivasa Reddy, Murugesen Pradeep Kumar, M Ganesh, G Vidya   +4 more
doaj   +1 more source

Cryogenic spray quenching of simulated propellant tank wall using coating and flow pulsing in microgravity

npj Microgravity, 2022
In-space cryogenic propulsion will play a vital role in NASA’s return to the Moon mission and future mission to Mars. The enabling of in-space cryogenic engines and cryogenic fuel depots for these future manned and robotic space exploration missions ...
J. N. Chung, Jun Dong, Hao Wang, S. R. Darr, J. W. Hartwig   +4 more
doaj   +1 more source

Current status of the CLIO project [PDF]

, 2008
CLIO (Cryogenic Laser Interferometer Observatory) is a Japanese gravitational wave detector project. One of the main purposes of CLIO is to demonstrate thermal-noise suppression by cooling mirrors for a future Japanese project, LCGT (Large-scale ...
, A Araya, A Takamori, A Yamamoto, D Tatsumi, H Hayakawa, H Ishitsuka, H Tagoshi, H Takahashi, J Akamatsu, K Kuroda, K Yamamoto, Kuroda K, Li R, M Ando, M Ohashi, Marion F, Miyoki S, Miyoki S, N Awaya, N Kanda, N Sato, Ohashi M, S Miyoki, S Takemoto, S Telada, S Yamagishi, Sigg D, T Akutsu, T Haruyama, T Higashi, T Shintomi, T Suzuki, T Tomaru, T Uchiyama, Tomaru T, Tomaru T, Tomaru T, Uchiyama T, W Morii, Wilkinson C A, Willke B, Y Higashi, Y Saito, Yamamoto K   +44 more
core   +1 more source

Review of new developments in machining of aerospace materials

Journal of Machine Engineering, 2021
The paper presents an update of the recent literature on advances in machining of difficult to machine materials such as nickel and titanium-based alloys, and composites used in aeroengine and aerostructure applications.
Krzysztof Jemielniak
doaj   +1 more source

Cryogenic Ion Trapping Systems with Surface-Electrode Traps

, 2008
We present two simple cryogenic RF ion trap systems in which cryogenic temperatures and ultra high vacuum pressures can be reached in as little as 12 hours.
Chiaverini J., D. Schuster, G. M. Akselrod, I. L. Chuang, J. Labaziewicz, Leibrandt D., Lide D. R., March R. E., P. B. Antohi, W. S. Bakr, Y. Ge, Z. Lin   +11 more
core   +1 more source

Study on the Cooling and Lubrication Mechanism and Properties of Soybean Oil-Based MQL and Different Cryogenic Media in Titanium Alloy Processing

Lubricants
The machining of Ti-6Al-4V thin-walled parts is characterized by high cutting temperatures, significant force fluctuations, and complex thermomechanical coupling.
Zhiyong He, Dongzhou Jia, Qi Gao, Xiaoqiang Wu, Lan Wu, Yongqiang Fu   +5 more
doaj   +1 more source

Considerations regarding the use of cryogenic cooling in metal cutting as an alternative to conventional cooling – brief review

MATEC Web of Conferences, 2018
This paper presents a study regarding the latest researches on cryogenic cooling used in metal cutting as an opportunity for achieving green manufacturing, in terms of cryogenic methods, cutting tools, effects on cutting process parameters, industrial ...
Bocăneţ Ana Maria, Croitoru Cristian
doaj   +1 more source

Insights from bond-slip investigations in different reinforced concrete mixtures for LNG containment

Case Studies in Thermal Engineering, 2021
Understanding the concrete-steel interface's behavior at cryogenic temperatures is important for designing concrete for direct liquefied natural gas (LNG) containment; such behavior is currently unclear.
Reginald B. Kogbara, Myungjin Seong, Dan G. Zollinger, Srinath R. Iyengar, Zachary C. Grasley, Eyad A. Masad   +5 more
doaj   +1 more source