本篇研究使用具有快速冷卻效果的¬氣體霧化法及無電鍍法來製備Mg-Cu-Gd/Ag金屬玻璃複合粉末。目前利用設計一粉末收集容器，其粉末收集率可達到63%。所霧化出的Mg-Cu-Gd粉末粒徑主要約為40~70μm。利用X光繞射分析(XRD)來檢測所霧化出的粉末之結構為非晶質材料。熱差式掃描分析(DSC)檢測此材料之玻璃轉換溫度與結晶溫度，而等溫熱差式掃描分析用來決定此材料在不同持溫溫度的結構鬆弛時間。掃描式(SEM)顯微鏡以及感應耦合電漿質譜儀(ICP)觀察其微結構及化學組成，其組成為Mg66.2Cu24.3Gd9.5。接著以無電鍍銀技術製作金屬玻璃複合粉末。研究中對無電鍍銀的參數進行最佳化的探討，並成功製備出金屬玻璃複合粉末，選擇三種不同鍍層密度的粉末來探討其對機械性質的影響。而塊材的製備則先將粉末以熱壓的方式預成型，接著進行以擠型比為9及36的背向式擠型來得到直徑3mm的塊材。壓縮方面，進行應變速率為5×10-4 s-1下，得到此金屬玻璃基複合材料之壓縮應力應變曲線，此材料之壓縮強度最大為843 MPa。最後發現經過無電鍍銀表面處理後，越高的鍍層密度的確有助於提高複合材料之韌性。

The Mg-Cu-Gd/Ag metallic glass composite powders was synthesized by the RSA (Rapid-Solidifying Atomization) and silver electroless plating in this research. A container is designed for collect the powders and the collection rate of it now is 63%. The average size of atomized Mg-Cu-Gd metallic glass powders is 40~60 μm. The degree of crystallization and structure was determined by X-Ray differential Scanning analyses, which confirms amorphous structure. Differential Scanning Calorimeter analyses, were performed to establish the glass transition and crystallization temperatures of the atomized Mg-Cu-Gd metallic glass. Isothermal DSC was also performed to determine the incubation times at various temperatures. Microstructures and chemical compositions were characterized and analyses by SEM/EDS and ICP, which has composition of Mg66.2Cu24.3Gd9.5. The best parameters of silver electroless plating were discussed in this research , and the few, uniform and discontinuous coating layers were successfully made, and explored the mechanical properties by choose three kinds of coating density. The BMGCs pre-formation is made by hot press, and then backward extrusion was applied to make the BMGCs with diameter of 3 mm by ratio of 9 and 36. The compressive stress vs. strain relationships of the BMGCs were obtained by compressive testing at various strain rate of 5×10-4 s-1. Finally, it would be helping of increasing the toughness of the BMGCs via the method of electroless plating on surface of powders.

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