Preparation, microstructure and properties of Al2O3–ZrO2–C slide plate material in presence of nanoscale oxides

Low carbon Al2O3–ZrO2–C refractories with nano-oxides are prepared at 1500 °C in graphite embedded condition using tabular alumina, reactive alumina powder, zirconia-mullite, zirconia-corundum and flake graphite as well as nano-ZrO2, nano-TiO2 and nano-Al2O3 powders as additives. The effects of nano...

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Bibliographic Details
Published inCeramics international Vol. 48; no. 7; pp. 10126 - 10135
Main Authors Wang, Zihao, Su, Kai, Gao, Jinxing, Jia, Quanli, Zhang, Zongtao, Liu, Xinhong
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.04.2022
Subjects
Al2O3–ZrO2–C
Nano-oxides
Properties
SiC NWs
Slide plate
Nano-oxides
Slide plate
Al2O3–ZrO2–C
Properties
SiC NWs
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Summary:Low carbon Al2O3–ZrO2–C refractories with nano-oxides are prepared at 1500 °C in graphite embedded condition using tabular alumina, reactive alumina powder, zirconia-mullite, zirconia-corundum and flake graphite as well as nano-ZrO2, nano-TiO2 and nano-Al2O3 powders as additives. The effects of nano-ZrO2, nano-TiO2 and nano-Al2O3 powders as single additive on the properties and microstructure of Al2O3–ZrO2–C material are investigated. The results show that nano-oxides take the catalytic effect in SiC nanowires (NWs) formation and growth, leading to increasing in length-diameter (L/D) ratio of SiC NWs. Samples with nano-oxides addition possess improved sinterability, thermal shock resistance and oxidation resistance.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2021.12.223