Growth of Ammonium Chloride Dendrites from Vapor Phase
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概要
- 論文の詳細を見る
Large symmetrical and transparent dendritic crystals of ammonium chloride have been grown below transformation temperature by vapor phase technique. A regular change in the morphology of crystals starting from needle type crystals to tree like branching dendrites have been observed. Observations indicate that non-faceted needle type crystals grow by interface diffusion and volume diffusion field is responsible for the dendritic crystals, as proposed by Mullin & Sekerka and Cahn theoretically. In addition to diffusion fields and supersaturation, the growth temperature has been found to be an important factor in determining the basic morphology of crystals. The observed facets on the tips of dendritic arms and on the main arm of crystals may be explained by considering the decrease in supersaturation in later stage of growth. Characteristic features of dendritic crystals have also been discussed on the basis of existing theories.
- 社団法人応用物理学会の論文
- 1974-11-05
著者
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Kumar Krishna
Department Of Physics Indian Institute Of Technology
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Sharma S.
Department Of Pediatric Surgery Institute Of Medical Sciences Banaras Hindu University
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Sharma S.
Department Of Physics Indian Institute Of Technology
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Sharma S.
Department Of Chemistry And Centre Of Advanced Studies In Chemistry Panjab University
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