金屬玻璃擁有高強度、耐磨耗、耐腐蝕性與良好的機械性質，引起許多學者對於這塊領域有極大的興趣。鋯基非晶質合金具有良好的玻璃形成能力和較大的過冷區，可以利用簡易的設備，製備品質良好之塊材金屬玻璃。因此本研究以鋯為主要元素，添加鋁與銀，設計四十八組不同組成之合金，利用電弧熔煉爐製備出塊材非晶質合金，為了與非晶質合金進行比較，因此將其製備好之合金進行500oC熱處理1440小時。經由X光繞射與示差掃描熱量分析儀等分析，判別各組成是否為非晶質合金，其結果顯示在Zr40-65Al10-50Ag15-35為非晶區域。
此實驗中並沒有發現三元化合物，溫度於500oC所存在的平衡相皆為鋯-鋁、鋯-銀與鋁-銀二元系統的平衡相。鋯-鋁-銀三元系統於500oC下存在著十二個三相區、二十五個雙相區與十四個單相區。

The metallic glasses have high strength, wear resistance, corrosion resistance and excellent mechanical properties. Thus, many research groups have great interest to develop them. The Zr-based amorphous alloys have the excellent glass forming ability and large super-cooling regions. Meanwhile, they can be prepared by using the simple equipment to form the high quality bulk metallic glass. In this study, 48 Zr-Al-Ag alloys with different compositions were prepared to form bulk metallic glasses. The amorphous and crystalline regions were determined, as well. To compare with the bulk metallic glass results, the phase equilibra of the Zr-Al-Ag ternary system at 500oC was investigated. The result shows that the amorphous region of Zr-Al-Ag alloys is Zr40-65Al10-50Ag15-35. There are 12 three-phase regions, 25 two-phase regions and 14 single-phase regions in the Zr-Al-Ag ternary system and no ternary compounds were found at 500oC.

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