庞晶晶,穆春丰,刘天庆,陆巧羽,孙相彧

• 1:大连理工大学化工学院化学工程系
• 2:大连理工大学化工学院化学工程系
• 3:大连理工大学化工学院化学工程系
• 4:大连理工大学化工学院化学工程系

摘要(Abstract)：

鉴于镁能与热水(冷凝液)反应,反应后镁表面的化学成分将发生变化,初始冷凝液核的形态将被保留在镁表面上,所以本实验采用金属镁作为冷凝表面。同时为了研究冷凝表面微观形貌同滴状冷凝之间的关系,在相近的冷凝条件下,选取不同磁控溅射条件下制备的镁膜作为冷凝表面,采用分形理论对镁表面冷凝前表面形貌的复杂程度进行量化研究,运用差分计盒维数法计算镁表面冷凝前表面形貌的分形维数。结果表明冷凝试件的表面形貌特征对初始滴状冷凝的液核数有较大影响,其分形维数不同,冷凝后镁表面初始液核数也不同。在实验的基础上,建立了能够反映表面分形维数对成核中心密度影响的定量关系式。

关键词(KeyWords)： 滴状冷凝;表面形貌;分形维数;成核中心密度

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(5037600)

作者(Author): 庞晶晶,穆春丰,刘天庆,陆巧羽,孙相彧

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