The 78AgI, 16.5Ag(2)O, and 5.5B(2)O(3) mol% powder mixture, ultra-fast quenched 78AgI-16.5Ag(2)O-5.5B(2)O(3) glass containing alpha-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 alpha-AgI phase, in contrary, it prompted alpha to beta phase transition of the alpha-AgI precipitates in the glass. Nanosize scale beta/gamma-AgI grains were detected both in the milled powder mixture and in the glass but not in the pristine AgI powder. The decrease of alpha to beta phase transition temperature was observed for the milled materials during cooling from 170 degrees C, ca. 10 degrees C, 60 degrees C and 75 degrees C respectively for the AgI powder, the powder mixture and the glass. Stabilization of the alpha-AgI to low temperatures was related to the nanosize scale (beta/gamma-AgI grains. The work demonstrates, that although it is not possible to stabilize alpha-AgI in pure silver iodide powder by ball-milling, nevertheless it is achievable for mixtures with high AgI contents. (C) 2013 Elsevier B.V. All rights reserved.