Abstract
The growth of transparent single crystals of potassium dihydrogen ortho-phosphate (KDP) in silica gels up to 40 mm x 8 mm x 7 mm in size is reported. A brief description of the material preparation, growth procedure and crystal characterization is given. Studies of the effects of pH and gel ageing upon the quality and nucleation of crystals are also reported. With an initial gel pH of 5.1, some crystals grow initially in the form of needles, while subsequent growth leads to bigger crystals, Cusps are observed around some of the growing crystals. Microstructures of the habit faces of gel grown crystals are explained.
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References
G. Busch and P. Scherrer, Naturwiss 23 (1935) 737.
J. W. Mullin and A. Amatavivadhana, J. Appl. Chem. 17 (1967) 151.
M. S. Joshi and Baby. K. Paul, J. Cryst. Growth 22 (1974) 321.
B. Brenzina and M. Havrankova, Mat. Res. Bull. 6 (1971) 537.
D. A. Glockber and J. E. Soest, J. Chem. Phys. 51 (1969) 3143.
H. K. Henisch, J. Dennis and I. J. Hanoka, J. Phys. and Chem. Solids 29 (1955) 493.
Z. Blank and W. Brenner, Nature 222 (1969) 79.
A. F. Armington and J. J. O'connor, J. Cryst. Growth 3, 4 (1968) 367.
H. K. Henisch, J. Dennis and I. J. Hanoka, J. Electrochem. Soc. 112 (1965) 627.
J. Dennis, H. K. Henisch and P. Cherin, ibid 112 (1965) 1240.
H. K. Henisch, “Crystal Growth in Gels” (The Pennsylvania State University Press, University Park, Pennsylvania, 1970) p. 93.
I. J. Hanoka, J. Appl. Phys. 40 (1969) 2694.
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Joshi, M.S., Antony, A.V. Single crystal growth of ferroelectric potassium dihydrogen orthophosphate in silica gels. J Mater Sci 13, 939–944 (1978). https://doi.org/10.1007/BF00544688
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DOI: https://doi.org/10.1007/BF00544688