An HREM study of domain structures and grain boundaries in Ca4Al6SO16

Several different kinds of domain structures formed during phase transformation were observed by high-resolution electron microscopy (HREM) in Ca4Al6SO16. (110) 90 degrees and 120 degrees orientation variants and (110) translation variants found in the superstructure related to the lost symmetries o...

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Veröffentlicht in:	Journal of materials science 1991-02, Vol.26 (3), p.814-820
Hauptverfasser:	WANG, Y. G, YE, H. Q, KUO, K. H, FENG, X. J, LAO, G. L, LONG, S. Z
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: structure, mechanical and thermal properties Exact sciences and technology Inorganic compounds Physics Structure of solids and liquids crystallography Structure of specific crystalline solids Water, oxides, hydroxides, peroxides
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Several different kinds of domain structures formed during phase transformation were observed by high-resolution electron microscopy (HREM) in Ca4Al6SO16. (110) 90 degrees and 120 degrees orientation variants and (110) translation variants found in the superstructure related to the lost symmetries of matrix and their number can be predicted according to the Van Tendeloo's conclusion. In addition to these domain structures, the (110) 180 degrees rotation domain with the characteristic feature of non-stoichiometry and {110} general domain have also been revealed in the matrix. The {110} and {211} small angle grain boundaries were studied as well. 10 refs.
ISSN:	0022-2461 1573-4803
DOI:	10.1007/bf00588321