本文選題：Mg基共晶合金　切入點(diǎn)：高溫儲熱　出處：《功能材料》2017年02期

【摘要】：選取Bi、Sn、Cu、Zn、Ni、Si等元素分別加入Mg基體中,熔煉得到7種Mg基二元和三元高溫相變儲熱共晶合金。運(yùn)用固溶體準(zhǔn)化學(xué)模型及其2種簡化形式對Mg基共晶合金的熔化相變焓進(jìn)行計(jì)算,并通過DSC實(shí)測值對預(yù)測值進(jìn)行驗(yàn)證。結(jié)果表明,7種Mg基共晶合金的實(shí)測熔點(diǎn)在450~600℃范圍內(nèi),實(shí)測熔化相變焓200kJ/kg左右。由簡化模型得到的預(yù)測值同實(shí)測值匹配度較高,能夠用于Mg基多元共晶合金熔化相變焓的預(yù)測。此外,提高熔化熵值高的元素比例并增加組元數(shù),可以提高共晶合金體系的熔化相變焓。
[Abstract]:Seven kinds of Mg-based binary and ternary high temperature phase change heat storage eutectic alloys were obtained by melting Bi-Sn-Sn-CuOZZn-NiON-Si and other elements into mg matrix. The melting enthalpy of Mg-base eutectic alloy was calculated by using the solid solution quasi chemical model and its two simplified forms, and the melting enthalpy of Mg-base eutectic alloy was calculated. The results show that the measured melting point of 7 Mg-base eutectic alloys is in the range of 450 鈩，

本文編號：1658384