本研究在探討鎳鋅比含量對於NiCuZn ferrite在束縛燒結下緻密行為之影響與顯微結構發展，並探討束縛燒結其緻密延遲之現象。在相同的燒結條件下，不論是在自由燒結或束縛燒結，鎳含量多的ferrite其緻密度較低。在束縛燒結的情況下，束縛層的存在會延遲緻密行為，在X-Y方向產生平面張應力，抵銷部分的燒結驅動力，故平面張應力越大則代表越不容易緻密，根據構成方程式計算，鎳含量多的ferrite其張應力較大，證實了鎳含量多的ferrite在相同燒結條件下，相較於鎳含量較少的ferrite其緻密度較差。材料在自由燒結可緻密的條件下，因束縛層存在的關係緻密行為發生延遲，具有較低的緻密度和較慢的緻密速率，為了解決束縛燒結下緻密度低的問題，在Z軸方向施加壓應力來提升緻密度，使束縛燒結具有與自由燒結的相同緻密速率，而較多鎳含量的ferrite其緻密行為較慢，因此所需之壓應力較大，其量測值與利用構成方程式計算之理論值相符，因此可利用等向性構成方程式分析其緻密行為與應力變化。

Effects of Ni/Zn ratio on constrained sintering of NiCuZn ferrites have been investigated. Poorer and slower densification is observed in the samples with a higher NiO content in NiCuZn ferrite under free and constrained sintering. The samples with a higher NiO content have the larger tensile stress and the required uniaxial stress. The above results are caused by more NiO content, which has the slower densification behavior. It requires the more sintering force and larger uniaxial stress to be densified. The densification behavior and stress development during constrained sintering of ferrite system are calculated by using an isotropic model. Insignificant change in densification mechanism and isotropic microstructure develop under free and constrained sintering.

一、前言-1
1.1 積層陶瓷製程-1
1.2 束縛燒結技術-2
1.3 束縛燒結面臨的問題-3
1.4 研究背景與動機-9
二、實驗方法-11
2.1 試片製備-11
2.2 緻密度與收縮性質量測-11
2.3 顯微結構觀察與統計分析-12
三、結果與討論-13
3.1 束縛燒結-13
3.1.1 緻密行為-13
3.1.2 平面張應力-13
3.1.3 緻密機制分析-15
3.1.4 晶粒方向分析-16
3.1.5 外加應力-16
3.1.6 燒結行為分析-17
3.1.7 等向性模型-22
四、結論-24
五、參考文獻-25

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