Indentation Creep of Hydrated Soda–Lime Silicate Glass Determined by Nanoindentation
Indentation Creep of Hydrated Soda–Lime Silicate Glass Determined by Nanoindentation
复制标题
纳米压痕测定水合钠钙硅酸盐玻璃的压痕蠕变
DOI：
10.1111/j.1151-2916.1993.tb05314.x
复制
发表时间：
1993
影响因子：
3.9
通讯作者：
N. M. Keulen
中科院分区：
文献类型：
--
作者：
N. M. Keulen
采用纳米压痕技术研究了不同水分含量的钠钙硅酸盐玻璃的时间相关变形行为。分析了加载和卸载部分的完整压痕曲线。结果表明，这种变形行为可以用一个类似于粘弹性系统的简单力学模型来表示。推导了杨氏模量值，推导了延迟谱，计算了表观粘度。玻璃的结构重排似乎是导致所观察到的粘弹性性质变化的原因。玻璃中的水降低了杨氏模数和屈服应力，从而促进了粘性流动。
Time-dependent deformation behavior was investigated for soda–lime silicate glass with various water contents, using a nanoindentation technique. The complete indentation curve, loading and unloading part, is analyzed. It is shown that this deformation behavior may be represented in terms of a simple mechanical model analogous to a viscoelastic system. Values for Young's modulus were derived, a retardation spectrum was deduced, and apparent viscosity values were calculated. Structural rearrangements of the glass appear to be responsible for the observed changes of the viscoelastic properties. Water in the glass reduces Young's modulus and yield stress and thus promotes viscous flow.