SONG He, DONG Jingming, HAN Zhitao, et al. Effects of sintering parameters on performance of Ni porous wick[J]. CIESC Journal, 2017, (S1): 178-183.DOI: 10.11949/j.issn.0438-1157.20170618.
Sintered nickel porous wick is a key component in the loop heat pipe system
metal powder sintering is a common method to product porous wicks
performance of loop heat pipe will be improved by investigating the effects of sintering parameters on the microstructures and characteristics of wicks. In this paper
sintered nickel porous wicks were fabricated
besides
effects of sintering temperature and time on the microstructure and characteristics of wicks were studied. Sintering temperature changed from 750℃ to 850℃ and sintering time varied in the range of 30-40 min. Results reveal that sintering parameters affect the microstructure and characteristics of wicks obviously. Voidage
average pore size and permeability decreases with increasing sintering temperature and time. Capillary pumping amount and capillary pumping speed are positive to permeability of the wick. Moreover
the microstructure and characteristics of wicks are sensitive to sintering temperature of 750-800℃ and sintering time of 40-50 min.