Single Crystal Growth of Calcium Pyroniobate
- 1 January 1967
- journal article
- research article
- Published by Wiley in Physica Status Solidi (b)
- Vol. 22 (2) , 499-504
- https://doi.org/10.1002/pssb.19670220222
Abstract
Single crystals of calcium pyroniobate, Ca2Nb2O7, have been grown from the melt by the Czochralski method. Crystal growth along a 〈OVW〉 direction is easy, being characterized by the formation of large area mirror facets, which under certain conditions leads to the growth of thin ribbon crystals. Growth along [100] is difficult and rates of less than 0.4 cm/h have to be used to obtain crack free crystals. Growth defects such as inclusions and cavities were found to be absent in the crystals, and no evidence was found for the presence of impurity striations.Keywords
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