An anomalous glass was discovered through high-pressure heat treatment (5.5 GPa at 850 K) followed by rapid cooling of a Zr₅₀Cu₄₀Al₁₀ metallic glass. Despite a reduction in the crystallization temperature and enthalpy, high-resolution transmission electron microscopy analysis revealed that the collected bulk sample maintained a fully amorphous structure. The density of the sample was 0.6% larger than that of the as-cast state and was even larger than that of the partially crystallized state. These results suggest the formation of an ultradense packing glass that cannot be obtained through conventional annealing. Compression test results indicated a significant increase in the Young’s modulus and fracture strength, supporting the creation of an anomalous metallic glass. In addition, plasticity was observed in the treated sample. It was therefore concluded that the high-pressure heat treatment enabled the creation of a new type of glass that is normally overshadowed by the crystallized phase at atmospheric pressure. We explained the creation of the ultradense glass by introducing a pressure parameter (P) to the conventional volume (v) - temperature (T) diagram.

通过高压热处理（在850 K下为5.5 GPa）发现异常玻璃，然后快速冷却Zr ₅₀ Cu ₄₀ Al ₁₀金属玻璃。尽管降低了结晶温度和焓，但高分辨率透射电子显微镜分析显示，收集的大块样品保持了完全无定形的结构。样品的密度比铸造态的密度大0.6％，甚至比部分结晶态的密度大。这些结果表明形成了无法通过常规退火获得的超致密填充玻璃。压缩测试结果表明杨氏模量和断裂强度显着增加，支持了异常金属玻璃的产生。另外，在处理的样品中观察到可塑性。因此得出的结论是，高压热处理能够产生一种新型的玻璃，这种玻璃通常在大气压下会被结晶相所遮盖。我们通过引入压力参数（P）到常规体积（v）-温度（T）图。