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首页> 外文期刊>Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing >Nanostructured ceramics processed from coarse powder
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Nanostructured ceramics processed from coarse powder

机译：由粗粉加工而成的纳米结构陶瓷

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摘要

Ceramic powders based on aluminum oxide and zirconium oxide have been rapidly solidified from the liquid state, resulting in metastable nanostructures contained in particles of micrometer size. Thermal analysis, X-ray diffraction, and thermodynamic calculations were used to investigate crystallization and phase transformations. Microstructural evolution was examined through scanning and transmission electron microscopy. Metastable phases crystallize from an amorphous phase at 850-950 ℃ during heating. Borosilicate glass increases deformation rates, while lanthanum oxide increases glass forming ability and allows for hot compaction in the amorphous state.
机译：基于氧化铝和氧化锆的陶瓷粉已从液态迅速固化，从而导致微米尺寸颗粒中包含亚稳态的纳米结构。使用热分析，X射线衍射和热力学计算来研究结晶和相变。通过扫描和透射电子显微镜检查微观结构的演变。在加热过程中，亚稳相在850-950℃时从非晶相结晶。硼硅酸盐玻璃增加变形速率，而氧化镧增加玻璃形成能力并允许在非晶态下热压实。

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