臺灣博碩士論文加值系統

本論文主要是研究商用鈣硼矽玻璃的自由燒結、束縛燒結緻密行為、應力分析。本實驗束縛燒結採用(1)玻璃束縛在燒結過程中不會收縮變形生胚薄片上的束縛燒結(Constrained Sintering)、(2)施與外加壓應力的外加壓應力燒結(Pressure Sintering)二種方法。藉由TMA (Thermal Mechanical Analyzer)分析儀器，量測自由燒結與束縛燒結收縮量，經由公式推算緻密度。實驗結果得知束縛燒結的相對緻密度、緻密速率均遠低於自由燒結。由於束縛燒結過程中鈣硼矽玻璃會滲透至氧化鋁層中形成滲透層，此滲透層會使鈣硼矽玻璃緻密度下降。結晶對束縛燒結緻密行為並沒有太大影嚮。由於束縛燒結無法緻密，改採用外加壓應力燒結。實驗結果外加壓應力燒結的相對緻密度、緻密速率與自由燒結差異不大，兩者均有達到緻密。在外加壓應力燒結過程中由於有摩擦力產生，使鈣硼矽玻璃在X-Y方向流動性不佳，必需使用比理論計算較大的壓應力才能束縛住鈣硼矽玻璃。實驗中束縛燒結應力採用多孔性燒結玻璃構成方程式來做計算。

目 錄
1. 簡介 1
2. 實驗方法 3
2.1 漿料製備 3
2.2 刮刀製程 3
2.3 疊壓 4
2.4 疊壓後生胚密度量測 4
2.5 脫脂除碳 4
2.6 燒結 5
2.6.1 等溫燒結 5
2.6.2 非等溫燒結 5
2.7 性質分析 5
2.7.1 顯微結構觀察 5
2.7.2 X光繞射分析 6
2.7.3 熱分析 6
3. 結果與討論 7
3.1 自由燒結與束縛燒結 7
3.1.1 自由燒結與束縛燒結緻密性質 7
3.1.2 自由燒結與束縛燒結結晶性行為 9
3.1.3 鈣硼矽玻璃層與束縛燒結界面反應 10
3.1.4 束縛燒結滲透反應層對緻密性質影嚮 11
3.1.5 束縛燒結滲透反應層結晶相 12
3.1.6 束縛燒結在X-Y平面最大內縮量 13
3.1.7 束縛燒結張應力 14
3.2 自由燒結與外加壓應力燒結 17
3.2.1 自由燒結與外加壓應力燒結顯微結構 17
3.2.2 自由燒結與外加壓應力燒結緻密性質 18
3.2.3 外加壓應力燒結壓應力 18
4. 結論 21
5. 參考文獻 22

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