Enhancing the mechanical strength and air permeability of corundum porous materials using shape-modified coarse aggregates
Enhancing the mechanical strength and air permeability of corundum porous materials using shape-modified coarse aggregates
复制标题
利用形状改性粗骨料提高刚玉多孔材料的机械强度和透气性
DOI：
10.1016/j.ceramint.2019.02.186
复制
发表时间：
2019-06
影响因子：
5.2
通讯作者：
Yan Ma
中科院分区：
文献类型：
--
作者：
Xin Xiong;Zhoufu Wang;Xitang Wang;Hao Liu;Yan Ma
Coarse aggregates of shape-modified corundum (0.5–1 mm) were obtained by treating corundum particles in an intensive mixer, and the effect of shape-modified coarse aggregates on the pore structure and properties of the porous materials were investigated. After the shape modification process, the morphologies of the coarse aggregates became more regular, with increased circularities and decreased aspect ratios. This was not only conductive to accelerating the rearrangement of coarse aggregate particles during the press-forming process and obtaining a more tightly packed structure but also contribute to maintaining the structures of the pores from the stacking of coarse aggregate particles in the porous material. By using shape-modified coarse aggregates, the cold compressive strengths and bulk densities of the specimens were increased, while the apparent porosity was decreased. More interestingly, the Darcian and non-Darcian permeability coefficients of the specimens were enhanced despite the decreased apparent porosities.
登录
查看更多内容
影响因子：
11.4
作者：
Etxeberria, M.;Vazquez, E.;Barra, M.
通讯作者：
Barra, M.
影响因子：
2.7
作者：
A. Kwan;C. Mora
通讯作者：
A. Kwan;C. Mora
影响因子：
5.2
作者：
Shiwei Zhao;Nan Zhang;Xiaowen Zhou;Lei Zhang
通讯作者：
Shiwei Zhao;Nan Zhang;Xiaowen Zhou;Lei Zhang
影响因子：
2.3
作者：
Z. Jiawen
通讯作者：
Z. Jiawen
影响因子：
10.9
作者：
Katsutomo Ohzeki;Y. Saito;B. Golman;K. Shinohara
通讯作者：
Katsutomo Ohzeki;Y. Saito;B. Golman;K. Shinohara