Calcium Tungstate. II. Observation of Dislocations

Autor:	G.M. Loiacono, H.J. Levinstein, K. Nassau
Rok vydání:	1963
Předmět:	Crystallography Materials science Impurity Residual strain Doping technology industry and agriculture General Physics and Astronomy Polishing Calcium tungstate Dislocation
Zdroj:	Journal of Applied Physics. 34:3603-3608
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.1729265
Popis:	An etch‐pitting technique is described for revealing the points of intersection of dislocations with the (100) and (001) surfaces of calcium tungstate single crystals; each etch pit represents one dislocation. The dislocation configuration that is responsible for the residual strain in as‐grown ``a'' axis crystals and the mechanism of its growth from the melt are discussed. Preliminary results concerning the distribution of impurities in doped calcium tungstate crystals and the effect of doping on dislocation density and distribution are described. The solution behavior of calcium tungstate in various solvents and a chemical polishing procedure for calcium tungstate are presented.
Databáze:	OpenAIRE
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