supported by National Natural Science Foundation of China (No.51506152);the Fundamental Research Funds for the Central Universities (inter-disciplinary program) under the contract No.kx0080020173427
Stirling-type pulse tube cryocoolers(SPTCs)working at liquid-helium temperatures are appealing in space applications because of their promising advantages such as high reliability,compactness,etc.Worldwide efforts hav...
supported in part by the Nationa Natural Science Foundation of China (51471025, 51671020, 51471024 and 11771407);the Department of Energy (DOE), Office of Fossil Energy, National Energy Technology Laboratory (DE-FE-0011194);the support from the US Army Research Office project (W911NF-13-1-0438);the support from the National Science Foundation (DMR-1611180 and 1809640)
Seldom could metals and alloys maintain excellent properties in cryogenic condition, such as the ductility, owing to the restrained dislocation motion.However, a face-centered-cubic(FCC) CoCrFeNi highentropy alloy(HEA...