本研究探討銅鋯基 Cu45Zr45Al5Ag5 (以下簡稱 CZ45)非晶合金在375 °C ~ 500 °C空氣下的氧化行為。研究結果顯示，銅鋯基非晶合金的氧化動力學皆遵守兩段或三段式拋物線律(依溫度高低而異)，而非晶的氧化反應速率常數(kp)與溫度呈現不規則之變化；即在過冷液態區間，kp 值隨溫度上升而加快，但在 450 °C 以上時，卻有相反的趨勢。氧化後的氧化生成物以正方晶體的ZrO2(t-ZrO2)和CuO為主， 另外有少量的單斜及斜方的ZrO2(m-和o-ZrO2)以及 α-Al2O3(只有在 500 °C 生成)。此外，當溫度低於玻璃轉換溫度(Tg)下時，基材仍保有非晶狀態；但當溫度升高時，非晶合金會先氧化後結晶的相變化發生，使基材轉變為 Cu10Zr7和 ZrAl兩種結晶相。

The oxidation behavior of a Cu45Zr45Al5Ag5 bulk metallic glass (CZ45) was studied over the temperature range of 375 ~ 500 °C in dry air. The oxidation kinetics of the glassy alloy generally followed a two- to three-stage parabolic rate law, and the steady-state parabolic rate constants (kp values) fluctuated with temperature. The kp values increased with increasing temperature, when it was in the supercooled region; however, those values decreased with increasing temperature at T >450 °C. The scales formed on the CZ45-BMG consisted mostly of tetragonal-ZrO2
(t-ZrO2), CuO,minor amounts of monoclinic- and orthorhombic-ZrO2, (m- and o-ZrO2), and α-Al2O3 (only detected at 500 °C). In addition, the glassy alloy underwent a pre-oxidation process, followed by a phase transformation after the oxidation at T > 400 °C. The amorphous substrate remained unchanged at temperatures below the glass-transition temperature (Tg), while a dual-phase structure of Cu10Zr7 and ZrAl was developed after the oxidation at higher temperatures, indicating the crystallization of the amorphous substrate.