先进材料疑固实验室 Laboratory of Advanced Materials Solidification 1896 1920 1987 2006 Crystal growth of single element solids(2) Dr.Mingxu Xia anced Mat 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY
1896 1920 1987 2006 Crystal growth of single element solids (2) Dr. Mingxu Xia
先进材料疑固实验室 References Laboratory of Advanced Materials Solidification 闵乃本晶体生长的物理基础 W.Kurz擬固原理Fundamentals of Solidification 胡汉起金属凝固原理 M.C.Flemings凝固过程Solidification Processing 张克从，晶体生长科学与技术 y of vanced Materials Soll 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY
References 闵乃本 晶体生长的物理基础 W. Kurz 凝固原理 Fundamentals of Solidification 胡汉起 金属凝固原理 M.C.Flemings 凝固过程 Solidification Processing 张克从，晶体生长科学与技术
先进材料疑固实验室 OUTLINE Laboratory of Advanced Materials Solidification Liquid/solid interface Crystal growth of single element solids Types of crystal growth Kinetics of growth(growth speed) Morphology control of crystal Crystal growth methods(technology) ory of vanced Materials Solid 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY
OUTLINE Liquid/solid interface Crystal growth of single element solids • Types of crystal growth • Kinetics of growth (growth speed) • Morphology control of crystal Crystal growth methods (technology)
先进材料疑固实验室 Types of crystal growth Laboratory of Advanced Materials Solidification Continuous growth:the solid crystal grows by continuously and randomly transferring atoms from liquid to solid. Lateral growth:the crystal growth process involves ledges which are required for adding atoms from liquid to the solid crystal. vanced Materd 上浒充通大学 SHANGHAI JIAO TONG UNIVERSITY
Types of crystal growth Continuous growth: the solid crystal grows by continuously and randomly transferring atoms from liquid to solid. Lateral growth: the crystal growth process involves ledges which are required for adding atoms from liquid to the solid crystal
先进材料疑固实验室 Types of crystal growth Laboratory of Advanced Materials Solidification Liquid Liquid Solid (a) asnjJ!O Liquid % (c) (b) Solid Fig.3.63 Solid/liquid interfaces:(a)atomically smooth,(b)and (c)atomically rough,or diffuse interfaces.(After M.C.Flemings,. Solidification Processing, McGraw-Hill,New York,1974.) Materials which have atomically diffuse S/L interfaces grow from liquid by continuous growth,while materials which have atomically smooth interfaces grow by lateral growth. 上游文通大学 SHANGHAI JIAO TONG UNIVERSITY
Types of crystal growth Materials which have atomically diffuse S/L interfaces grow from liquid by continuous growth, while materials which have atomically smooth interfaces grow by lateral growth