Lu Z P, Liu C T
Metals and Ceramic Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6115, USA.
Phys Rev Lett. 2003 Sep 12;91(11):115505. doi: 10.1103/PhysRevLett.91.115505. Epub 2003 Sep 10.
A conceptual approach to evaluate glass-forming ability for various glass-forming systems has been proposed from a physical metallurgy point of view. It was found that the glass-forming ability for noncrystalline materials was related mainly to two factors, i.e., 1/(T(g)+T(l)) and Tx (wherein Tx is the onset crystallization temperature, T ( g) the glass transition temperature, and T(l) the liquidus temperature), and could be predicated by a unified parameter gamma defined as T(x)/(T(g)+T(l)). This approach was confirmed and validated by experimental data in various glass-forming systems including oxide glasses, cryoprotectants, and metallic glasses.
从物理冶金学的角度出发，已经提出了一种评估各种玻璃形成系统玻璃形成能力的概念性方法。结果发现，非晶态材料的玻璃形成能力主要与两个因素有关，即1/(T(g)+T(l))和Tx（其中Tx是起始结晶温度，T(g)是玻璃转变温度，T(l)是液相线温度），并且可以通过定义为T(x)/(T(g)+T(l))的统一参数γ来预测。该方法已被包括氧化物玻璃、冷冻保护剂和金属玻璃在内的各种玻璃形成系统的实验数据所证实和验证。
