Mechanosynthesized and ultra-fast quenched AgI-Ag2O-B2O3 materials with high AgI contents
Paweł Grabowski , Jan Nowiński , Jerzy Garbarczyk , Marek Wasiucionek
AbstractThe 78AgI, 16.5Ag2O, and 5.5B2O3 mol% powder mixture, ultra-fast quenched 78AgI-16.5Ag2O-5.5B2O3 glass containing α-AgI crystalline precipitates and pristine AgI were ball-milled at a high rotation speed. For all the materials, the processing did not cause formation of α-AgI phase, in contrary, it prompted α to β phase transition of the α-AgI precipitates in the glass. Nanosize scale β/γ-AgI grains were detected both in the milled powder mixture and in the glass but not in the pristine AgI powder. The decrease of α to β phase transition temperature was observed for the milled materials during cooling from 170 °C, ca. 10 °C, 60 °C and 75 °C respectively for the AgI powder, the powder mixture and the glass. Stabilization of the α-AgI to low temperatures was related to the nanosize scale β/γ-AgI grains. The work demonstrates, that although it is not possible to stabilize α-AgI in pure silver iodide powder by ball-milling, nevertheless it is achievable for mixtures with high AgI contents. © 2013 Elsevier B.V. All rights reserved.
|Journal series||Solid State Ionics, ISSN 0167-2738|
|Publication size in sheets||0.5|
|ASJC Classification||; ;|
|Score|| = 30.0, 01-02-2020, ArticleFromJournal|
= 35.0, 01-02-2020, ArticleFromJournal
|Publication indicators||= 6; = 7; : 2013 = 1.269; : 2013 = 2.112 (2) - 2013=2.397 (5)|
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