Shape control in crystal pulling from a floating die

Controlling the final crystal shape is a major objective in the die-pulled crystal growth processes. The as-grown crystal shape is affected by many factors. Among these, thermal-capillary interaction is the key factor that controls the final crystal shape and dimension. In this paper, the shape cont...

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Bibliographic Details
Published inJournal of crystal growth Vol. 166; no. 1-4; pp. 458 - 462
Main Authors Lan, C.W., Liang, M.C., Song, C.R., Fu, C.K.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Amsterdam Elsevier B.V 01.09.1996
Elsevier
Subjects
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Growth from melts; zone melting and refining
Materials science
Methods of crystal growth; physics of crystal growth
Physics
Crystal form
Crystal growth habit
Three dimensional representation
Morphology
Tin
Operating mode
Computerized simulation
Experimental study
Thermocapillarity
Heat transfer
Crystal growth from melts
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Summary:Controlling the final crystal shape is a major objective in the die-pulled crystal growth processes. The as-grown crystal shape is affected by many factors. Among these, thermal-capillary interaction is the key factor that controls the final crystal shape and dimension. In this paper, the shape control of a crystal pulled from a floating die is studied through experiments and three-dimensional thermal-capillary simulation. Crystal pulling of tin from a weighted floating die is used as a model system. The effects of key process parameters, including the applied weight and the temperature and the shape of the die, on the final crystal shape are discussed.
ISSN:0022-0248
1873-5002
DOI:10.1016/0022-0248(95)00562-5