We present a simple hot press-based method for processing La(Fe,Si)13-based compounds consisting of La–Fe–Co–Si–C particles and phenolic resin. The magnetic entropy change △S per unit mass for the La Fe_(10.87)Co...We present a simple hot press-based method for processing La(Fe,Si)13-based compounds consisting of La–Fe–Co–Si–C particles and phenolic resin. The magnetic entropy change △S per unit mass for the La Fe_(10.87)Co_(0.63)Si_(1.5)C_(0.2)/phenolic resin compounds have nearly the same magnitude with the base materials. With the content of phenolic resin of 5.0 wt%, the compound conductivity is 3.13 W·m^(-1)·K^(-1). In order to measure the cooling performance of La(Fe,Si)13-based compounds,the La(Fe_(11.6-x)Co_(x))Si_(1.4)C_(0.15)(x =0.60, 0.65, 0.75, 0.80, 0.85)/phenolic resin compounds were pressed into thin plates and tested in a hybrid refrigerator that combines the active magnetic refrigeration effect with the Stirling cycle refrigeration effect. The test results showed that a maximum cooling power of 41 W was achieved over a temperature span of 30 K.展开更多
THE Laba Festival is a major festival in La month(the 12th month on the Chinese lunar calendar),falling on its eighth day.On the Gregorian calendar this year,it falls on January 13.Laba is also regarded as a prelude t...THE Laba Festival is a major festival in La month(the 12th month on the Chinese lunar calendar),falling on its eighth day.On the Gregorian calendar this year,it falls on January 13.Laba is also regarded as a prelude to the Spring Festival,or the Chinese New Year,as there are only three weeks left before its coming.This festival is more than 1,000 years old.The ancient Chinese made sacrifices to their ancestors and the deities on this day to wish for bountiful harvests and good luck over the next year.In many parts of China,people cook Laba porridge as a way of celebration.展开更多
基金supported by the National Natural Science Foundation of China (Grant Nos. 52171054 and 52171195)the National Natural Science Foundation for Distinguished Young Scholars (Grant No. 51925605)。
文摘We present a simple hot press-based method for processing La(Fe,Si)13-based compounds consisting of La–Fe–Co–Si–C particles and phenolic resin. The magnetic entropy change △S per unit mass for the La Fe_(10.87)Co_(0.63)Si_(1.5)C_(0.2)/phenolic resin compounds have nearly the same magnitude with the base materials. With the content of phenolic resin of 5.0 wt%, the compound conductivity is 3.13 W·m^(-1)·K^(-1). In order to measure the cooling performance of La(Fe,Si)13-based compounds,the La(Fe_(11.6-x)Co_(x))Si_(1.4)C_(0.15)(x =0.60, 0.65, 0.75, 0.80, 0.85)/phenolic resin compounds were pressed into thin plates and tested in a hybrid refrigerator that combines the active magnetic refrigeration effect with the Stirling cycle refrigeration effect. The test results showed that a maximum cooling power of 41 W was achieved over a temperature span of 30 K.
文摘THE Laba Festival is a major festival in La month(the 12th month on the Chinese lunar calendar),falling on its eighth day.On the Gregorian calendar this year,it falls on January 13.Laba is also regarded as a prelude to the Spring Festival,or the Chinese New Year,as there are only three weeks left before its coming.This festival is more than 1,000 years old.The ancient Chinese made sacrifices to their ancestors and the deities on this day to wish for bountiful harvests and good luck over the next year.In many parts of China,people cook Laba porridge as a way of celebration.
