本研究主要探討硼矽玻璃(BSG)+氧化鋁(Al2O3)系統製作成的低、高生胚密度試片，於共燒時產生的曲率(camber)與應力(stress)。利用熱機械分析儀量測兩種試片在不同升溫速率下的收縮差異，以及單軸向黏度(uniaxial viscosity)，並以同步照相方式觀察試片共燒時的曲率變化。將收縮率差值和曲率變化代入黏彈性模型(visco-elastic model)，皆可計算不匹配應力，且兩者計算出的結果相近。由於不匹配應力遠小於燒結驅動力，共燒結構仍可達到高度緻密，共燒後的試片亦未發現任何缺陷。

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