High-temperature performance in Al2O3–Cr2O3 refractories: Effect of Al2TiO5
High-temperature performance in Al2O3–Cr2O3 refractories: Effect of Al2TiO5
复制标题
Al2O3·Cr2O3 耐火材料的高温性能：Al2TiO5 的影响
DOI：
10.1016/j.ceramint.2021.10.178
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发表时间：
2021-10
影响因子：
5.2
通讯作者：
Bo Huang
中科院分区：
文献类型：
--
作者：
Yuze Wang;Huizhong Zhao;Han Zhang;Cunqiang Gan;Deng Hu;Pengda Zhao;Yang Zhao;Bo Huang
为了减少资源消耗，将棕刚玉与回收的铝铬渣在1600 °C下烧结，制备了Al 2 O3-Cr2 O3耐火材料。为了阐明TiO 2在耐火材料中的重要性，研究了TiO 2添加量对这些耐火材料的室温和高温力学性能的影响。通过考虑热力学模拟的结果，以及相和微观结构分析的结果，解释了所观察到的逐步进展的试样的高温力学性能。这一行为归因于试样基体中Al_2TiO_5的生成。此外，TiO 2的加入增加了未分解Al 2 TiO 5的含量，并伴随着基体部分出现多个微裂纹。高温使试样中的微裂纹形成一体化，并抵消了热应力，从而显著提高了试样的高温力学性能和抗热震性能。
In an effort to reduce resource consumption through recycling, Al2O3–Cr2O3refractories were prepared by sintering a mixture of brown corundum and recycled aluminum chromium slag at 1600 °C. To elucidate the significance of TiO2in refractory, the effect of TiO2addition on the room- and high-temperature mechanical properties of these refractories was investigated. The observed stepwise progression in the high-temperature mechanical properties of the specimens was explained by considering the results of thermodynamic simulations, as well as those of phase and microstructural analyses. This behavior was ascribed to the generation of Al2TiO5in the matrix of the specimens. Moreover, the addition of TiO2increased the content of undecomposed Al2TiO5, and it was accompanied by the appearance of several microcracks in the matrix portion. The high temperatures caused the integration of microcracks and counteracted the thermal stresses in the specimens, which considerably improved the high-temperature mechanical properties and the thermal shock resistance.
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影响因子：
5.2
作者：
M. Nath;S. Sen;K. Banerjee;A. Ghosh;H. S. Tripathi
通讯作者：
M. Nath;S. Sen;K. Banerjee;A. Ghosh;H. S. Tripathi
影响因子：
5.2
作者：
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影响因子：
3.9
作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
5.2
作者：
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通讯作者：
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