X-ray diffraction characterization of a spatially coherent crystalline nanocomposite obtained from a melt of KCl, KBr and KI salts
✍ Scribed by A.E. Cordero-Borboa; I. Camarillo-García; M.A. Muñoz-Gutiérrez
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 283 KB
- Volume
- 404
- Category
- Article
- ISSN
- 0921-4526
No coin nor oath required. For personal study only.
✦ Synopsis
Crystalline bulks, obtained by the Bridgman technique from a melt that was previously prepared by mixing equal molar fractions of the salts KBr, KCl and KI were characterized by powder and single-plate X-ray diffraction. The crystalline bulks are formed by a composite material consisting of a highly textured aggregation of crystallites of two different face-centred-cubic solid solutions with corresponding unit-cell sizes of 7.020(2) and 6.456(3) A ˚. The relative molar fraction concentrations of these solid solutions in the composite are about 0.348 and 0.652, respectively. From these solutions, the first is identified as the binary KBr(9.7%):KI(90.3%) mixed phase and the second is discussed to be the ternary KBr (45.9%):KCl (51.1%):KI (3.0%) mixed phase. The lattices of most of the crystallites forming the composite, no matter the phase they belong to, are spatially coherent to each other within the crystalline bulk.