作者
Rene Limbach, Bruno P Rodrigues, Lothar Wondraczek
发表日期
2014/11/15
期刊
Journal of Non-Crystalline Solids
卷号
404
页码范围
124-134
出版商
North-Holland
简介
We report on the loading-rate dependence of localized plastic deformation in inorganic covalent, metallic, ionic and superionic glasses. For this, the strain-rate sensitivity is determined through instrumented nanoindentation in a load-controlled strain-rate jump test. Through relating the strain-rate sensitivity to the reduced temperature, the packing density, the network dimensionality and the average single bond strength of the system, a qualitative mechanistic description of the strain-mediating process is possible. A strong variability of strain-rate sensitivity is obtained only at intermediate values of packing density, network connectivity or bond strength, when other parameters such as chemical composition and specific structural arrangement are dominating the deformation process. On the other side, for high bond strength and connectivity or for high packing density, the strain-rate sensitivity of the considered glasses …
引用总数
20142015201620172018201920202021202220232024112132117189201358
学术搜索中的文章
R Limbach, BP Rodrigues, L Wondraczek - Journal of Non-Crystalline Solids, 2014