A simple model for calculating the bulk modulus of the mixed ionic crystal: NH4Cl1−x Br x

Autor:	Vassiliki Katsika-Tsigourakou
Rok vydání:	2011
Předmět:	chemistry.chemical_compound Bulk modulus Materials science chemistry Polymorphism (materials science) Internal rotation Compressibility General Physics and Astronomy Halide Ionic crystal Thermodynamics Ammonium Ion
Zdroj:	Pramana. 77:689-695
ISSN:	0973-7111 0304-4289
DOI:	10.1007/s12043-011-0095-2
Popis:	The ammonium halides are an interesting systems because of their polymorphism and the possible internal rotation of the ammonium ion. The static properties of the mixed ionic crystal NH4Cl1 − xBrx have been recently investigated, using the three-body potential model (TDPM) by applying Vegard’s law. Here, by using a simple theoretical model, we estimate the bulk modulus of the alloys NH4Cl1 − xBrx, in terms of the bulk modulus of the end members alone. The calculated values are comparable to those deduced from the three-body potential model (TDPM) by applying Vegard’s law.
Databáze:	OpenAIRE
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