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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Alumina-based monofoams utilizing superplastic deformation facilitated by the addition of magnesia or magnesium aluminate spinel
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Alumina-based monofoams utilizing superplastic deformation facilitated by the addition of magnesia or magnesium aluminate spinel

机译：利用超塑性变形的氧化铝基单泡沫，通过添加氧化镁或铝酸镁尖晶石来促进

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摘要

Alumina-based ceramic foam utilizing the superplastic deformation after sintering has been proposed and demonstrated by the present authors. Effects of two kinds of additives, magnesia or magnesium aluminate spinel on the figure of alumina-based ceramic foams were examined. In both cases, total porosity increased with increasing the addition amount up to 30 molpercent. With the same addition amount, the porosity of spinel-added foam was slightly larger than that of magnesia-added one. On pore expansion, relative density of pore shell decreased while the density degradation degree of magnesia-added foam was more serious than that of spinel-added one.
机译：已经提出并证明了烧结后利用超塑性变形的氧化铝基陶瓷泡沫。考察了镁铝尖晶石或镁铝尖晶石两种添加剂对氧化铝基泡沫陶瓷图形的影响。在两种情况下，总孔隙率都随着添加量的增加而增加，最高可达30 mol％。在相同添加量的情况下，添加尖晶石的泡沫的孔隙率略大于添加氧化镁的泡沫的孔隙率。在孔膨胀方面，孔壳的相对密度降低，而添加镁的泡沫的密度降解程度比添加尖晶石的泡沫严重。

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