Ultrasonic study of (AgI)x(Ag4P2O7)1−xglasses in the region of the glass-transition temperature

Autor:	Akira Doi, Hirotaka Hayakawa, Hiroaki Kamioka
Rok vydání:	1993
Předmět:	Materials science business.industry Analytical chemistry Nucleation law.invention Differential scanning calorimetry Optics law X-ray crystallography Relaxation (physics) Crystallite Crystallization Glass transition Supercooling business
Zdroj:	Physical Review B. 47:14136-14141
ISSN:	1095-3795 0163-1829
DOI:	10.1103/physrevb.47.14136
Popis:	Ultrasonic velocity and attenuation have been measured on the superionic-glass system (AgI) x (Ag 4 P 2 O 7 ) 1-x , with 0.50≤x≤0.875, from room temperature to 200 o C through the glass-transition temperatures. X-ray diffraction, differential scanning calorimetry, and density measurements were made, besides ultrasonics, to clarify the nature of the supercooled liquid, with or without dispersed crystallites. We observed velocity dispersion and a single attenuation peak for 0.5≤x≤0.75 glasses, which decreased in location with increasing x in close correlation with the glass-transition temperature, and was assigned as due to relaxation of the supercooled liquid
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f4e3abd574225f28c6e18c16ae1514a9 https://doi.org/10.1103/physrevb.47.14136 Zobrazit plný text záznamu