功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2014年
15期
15036-15040
,共5页
王军涛%王文磊%来梦泽%曾德文
王軍濤%王文磊%來夢澤%曾德文
왕군도%왕문뢰%래몽택%증덕문
相%图%预%测%Kohler模%型%LiNO3-NaNO3-KNO3%熔盐%热能储存
相%圖%預%測%Kohler模%型%LiNO3-NaNO3-KNO3%鎔鹽%熱能儲存
상%도%예%측%Kohler모%형%LiNO3-NaNO3-KNO3%용염%열능저존
phase diagram prediction%Kohler model%LiNO3 -NaNO3 -KNO3%molten salt%thermal energy storage
采用对称的 Kohler 模型对 LiNO 3-NaNO 3-KNO 3三元体系的相图进行预测,得到三元共晶点为395．50 K,摩尔分数组成为(LiNO 3)＝0．388,(NaNO 3)＝0．102,(KNO 3)＝0．510.对该共晶点组成材料进行 DSC 实验测定,其熔点为397．32 K,而热重 TG 测试表明热稳定温度为868．62 K,表明该材料有可能作为高温蓄热传热材料应用于太阳能热电厂及核能发电厂,工作温度范围为397．32~868．62 K.
採用對稱的 Kohler 模型對 LiNO 3-NaNO 3-KNO 3三元體繫的相圖進行預測,得到三元共晶點為395．50 K,摩爾分數組成為(LiNO 3)＝0．388,(NaNO 3)＝0．102,(KNO 3)＝0．510.對該共晶點組成材料進行 DSC 實驗測定,其鎔點為397．32 K,而熱重 TG 測試錶明熱穩定溫度為868．62 K,錶明該材料有可能作為高溫蓄熱傳熱材料應用于太暘能熱電廠及覈能髮電廠,工作溫度範圍為397．32~868．62 K.
채용대칭적 Kohler 모형대 LiNO 3-NaNO 3-KNO 3삼원체계적상도진행예측,득도삼원공정점위395．50 K,마이분수조성위(LiNO 3)＝0．388,(NaNO 3)＝0．102,(KNO 3)＝0．510.대해공정점조성재료진행 DSC 실험측정,기용점위397．32 K,이열중 TG 측시표명열은정온도위868．62 K,표명해재료유가능작위고온축열전열재료응용우태양능열전엄급핵능발전엄,공작온도범위위397．32~868．62 K.
The symmetric Kohler model was applied to predict phase diagram of the LiNO 3 -NaNO 3 -KNO 3 terna-ry system,in which one ternary eutectic point (its molar fractions composition: (LiNO 3 )=0.388, (NaNO 3 )=0.102, (KNO 3 )=0.5 10)with low melting temperature was found to be 395.50 K.The DSC and TG curves of the predicted eutectic point were measured and the results showed that the melting temperature was 397.32 K and the thermal stability temperature was 868.62 K,and the predicted molten salts mixture was expected to be used in concentrating solar power and nuclear energy power plants.
