TY - JOUR
T1 - Aging in chalcohalide glasses: Origin and consequences
AU - Jensen, Martin
AU - Smedskjær, Morten Mattrup
AU - Wang, W.
AU - Chen, G. R.
AU - Yue, Yuanzheng
PY - 2012
Y1 - 2012
N2 - The application of chalcogenide and chalcohalide glasses is limited by their uncontrolled drift in properties over time due to aging processes. In the present work, we perform aging experiments on some chalcohalide glasses in oxidizing, inert and reducing atmospheres and afterwards we measure the elemental concentration depth profiles in the surface layer of the glasses by using secondary neutral mass spectroscopy. The results show that anionic diffusion processes occur in the glasses during aging. The aging process leads to a decrease in microhardness of the studied glasses, which is attributed to both physical aging (i.e., structural relaxation) and chemical aging (i.e., compositional change of the surface layer).
AB - The application of chalcogenide and chalcohalide glasses is limited by their uncontrolled drift in properties over time due to aging processes. In the present work, we perform aging experiments on some chalcohalide glasses in oxidizing, inert and reducing atmospheres and afterwards we measure the elemental concentration depth profiles in the surface layer of the glasses by using secondary neutral mass spectroscopy. The results show that anionic diffusion processes occur in the glasses during aging. The aging process leads to a decrease in microhardness of the studied glasses, which is attributed to both physical aging (i.e., structural relaxation) and chemical aging (i.e., compositional change of the surface layer).
UR - http://www.scopus.com/inward/record.url?scp=80255129198&partnerID=8YFLogxK
U2 - 10.1016/j.jnoncrysol.2011.07.041
DO - 10.1016/j.jnoncrysol.2011.07.041
M3 - Journal article
SN - 0022-3093
VL - 358
SP - 129
EP - 132
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - 1
ER -