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摻雜對YSZ/Al2O3燒結和機械特性的影響

Effect of Magnesium Oxide Doping on the Mechanical Properties of Zirconia/Alumina Sintering Composites

摘要


本研究針對釔安定氧化鋯及氧化鋁為基底之陶瓷結構材料,研究摻雜不同含量的氧化鎂對其燒結行為及機械特性之影響,應用氧化鎂之添加來降低鋯鋁複合材料製程溫度及抑制晶粒成長,達到較高的抗彎強度,增加陶瓷材料之機械性質。實驗結果發現摻雜氧化鎂燒結於鋯鋁複合材料有抑制晶粒成長之效果,結論為摻雜100 ppm氧化鎂於1,400℃的陶瓷材料其特性之相對密度為96.8%、其機械性質在維式硬度值為1,168 MPa、韌性值為4.87 MPa‧m^1/2,抗彎強度值為482 MPa。

並列摘要


The objective of this study is to investigate the effects of magnesium oxide doping on the microstructure and mechanical property of sintered yttria (3 mol%)-stabilized zirconia (YSZ) composites. Well-dispersed (80/20) YSZ/ Al2O3 ceramics containing 25 ppm, 100 ppm, 250 ppm, and 1 wt% MgO were prepared by solid state reaction method. The relative density, average grain size, lattice parameters, microhardness, and fracture toughness of MgO doped YSZ/Al2O3 ceramics sintered in the temperature range of 1,250~1,500℃ were investigated. Experimental results showed that the composite with 100 ppm MgO and sintered at 1,400℃ has a bulk density of 96.8%, 1,168 in Vickers hardness, 4.87 MPa‧m^1/2 in toughness, and 482 MPa in flexural strength.

被引用紀錄


Chu, J. H. (2013). 藉由製程溫度控制鍍製鋯-銅-鎳-鋁金屬玻璃薄膜及其微結構、熱、機械與抗菌性質 [master's thesis, National Tsing Hua University]. Airiti Library. https://doi.org/10.6843/NTHU.2013.00506
施泓仰(2013)。應用於光接收機之低功耗接收信號強度指標及製程與溫度變異補償方法〔碩士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2013.10894
Wu, Y. S. (2010). 利用基體偏壓之0.5 伏特高斯頻移鍵控解調器 [master's thesis, National Tsing Hua University]. Airiti Library. https://www.airitilibrary.com/Article/Detail?DocID=U0016-1901201111415121

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