DocumentCode :
721598
Title :
Excellent mechanical properties and specific heat capacity of Er3+xNi binary alloys
Author :
Hu, J. ; Shi, J. ; Xue, J. ; Long, Y. ; Ye, R.
Author_Institution :
Sch. of Mater. Sci. & Eng., Univ. of Sci. & Technol. Beijing, Beijing, China
fYear :
2015
fDate :
11-15 May 2015
Firstpage :
1
Lastpage :
1
Abstract :
Lead is often used as regenerator material in cryocoolers because of its larger specific heat capacity in 20-30 K However, Lead is potentially damaging to the environment and is prohibited in any device by RoHs Therefore, it is necessary to find alternative regenerator materials[1]. Bismuth is a promising alternative material, but its specific heat is less than lead[2]. In the other hand, Er3Ni compound has much larger specific heat capacity relative to lead below 20K[3]. However, it is too brittle to be a proper durable regenerator material used in cryocoolers Meanwhile, Er metal is ductile, and its the specific heat is larger than that of lead from 20 to 80K but decline rapidly below this temperature[4] Thus we add Er into the Er3Ni compound as the second phase to obtain an regenerator material with excellent mechanical properties and large specific heat capacity.
Keywords :
brittle fracture; compressive strength; cooling; ductile fracture; erbium alloys; nickel alloys; specific heat; stress-strain relations; Er3+xNi; binary alloys; brittle fracture; compressive strength; cryocoolers; ductile fracture; mechanical properties; regenerator material; specific heat capacity; stress-strain curves; Erbium; Heating; Lead; Magnetic field measurement; Mechanical factors; Temperature measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
Type :
conf
DOI :
10.1109/INTMAG.2015.7156760
Filename :
7156760
Link To Document :
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