Preparation of Al2O3–Y3Al5O12–ZrO2 eutectic ceramic by flash sintering

Preparation of Al2O3–Y3Al5O12–ZrO2 eutectic ceramic by flash sintering
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闪速烧结制备Al2O3-Y3Al5O12-ZrO2共晶陶瓷

DOI:
10.1016/j.scriptamat.2015.12.002
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发表时间:
2016-03
期刊:
Scripta Materialia (SCI 1 区, IF3.224)
影响因子:
--
通讯作者:
An Linan
An Linan
中科院分区:
其他
文献类型:
--
作者:
Li Kai;Su Haijun;Wang Yiguang;An Linan

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采用闪速烧结法制备了Al 2 O3-Y3 Al 5 O 12-ZrO 2三元共晶氧化物陶瓷。在直流电场的辅助下,在相对较低的温度和很短的时间内获得了高度致密的样品。所制备的陶瓷很好地保留了原始共晶粉末的相组成和显微结构。该陶瓷表现出相对高的硬度和高的断裂韧性。这些结果清楚地表明采用闪速烧结技术制备共晶陶瓷的可行性。
Al2O3–Y3Al5O12–ZrO2ternary eutectic oxide ceramic was prepared by flash sintering the corresponding powder. The highly dense sample was obtained at relatively low temperature and very short time with the assist of dc electric field. As-prepared ceramics well preserve the phase composition and microstructure of the original eutectic powder. The ceramic exhibits relatively high hardness and high fracture toughness. These results clearly demonstrate the feasibility of employing the flash-sintering technique to fabricate eutectic ceramics.
通过激光工程净成形制造的 Al2O3−ZrO2 (Y2O3) 共晶纳米级微观结构
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