基于灰色系统理论的多孔镁橄榄石材料气孔特性与耐压强度的相关性.PDF

第 44 卷第 6 期 硅 酸 盐 学 报 Vol. 44 ，No. 6 2 0 1 6 年 6 月 JOURNAL OF THE CHINESE CERAMIC SOCIETY June ，2016 DOI ：10.14062/j.issn.0454-5648.2016.03.19 基于灰色系统理论的多孔镁橄榄石材料气孔特性与耐压强度的相关性 宋云飞，邓承继，祝洪喜，丁 军，张小军，员文杰 (武汉科技大学，省部共建耐火材料与冶金国家重点实验室，武汉 430081) 摘 要：用 NaCl 作熔盐介质制备镁橄榄石质多孔材料，用灰色系统理论研究了在不同 NaCl 含量(30%、40% 、50%和 60%) 以及不同烧成温度(1 000、1 050、1 100 和 1 150 ℃)下材料的气孔特性与耐压强度的关联性。结果表明：相同烧成温度、不同 熔盐含量时，多孔材料的耐压强度与材料内部气孔孔径在 4.6~46 μm 范围内的数量关联度最大；不同烧成温度、相同熔盐含 量时，孔径分布在 46~84 μm 之间的气孔数量对多孔材料的耐压强度关联度最大。 关键词：灰色系统；气孔特性；耐压强度；多孔材料 中图分类号：TQ175.7 文献标志码：A 文章编号：0454–5648(2016)06–0898–05 网络出版时间： 网络出版地址： Correlation Between Porosity Characteristics and Cold Crushing Strength of Forsterite Porous Materials Based on Grey System Theory SONG Yunfei, DENG Chengji, ZHU Hongxi, DING Jun , ZHANG Xiaojun, YUAN Wenjie (The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China) Abstract: Forsterite porous materials were prepared with NaCl as a molten salt medium.The correlation between the pore characteristics and cold crushing strength of the materials at different NaCl contents (i.e., 30–60%) and firing temperatures (i.e., 1 000–1 150 ℃) was investigated based on the gray system theory. The results show that the grey relational degree between the cold crushing strength and the pore size distribution of 4.6–46.0 μm is greater than that between the cold crushing strength and the other pore size distributions when the samples are sintered at 1 100 ℃ at different NaCl contents. And, when, The correlation coefficient between the cold crushing stren