粉煤灰为基制备耐火材料的研究
发布时间：2018-12-18 03:59
【摘要】：以粉煤灰为主要原材料,煤矸石和工业氧化铝为辅料,通过控制物料比例制备了不同Al_2O_3含量在不同烧结温度下的耐火材料。对所制备材料进行结构性能测试,并借助X射线衍射和扫描电镜对材料进行微观分析。实验结果表明:不同的烧结温度及氧化铝含量对耐火制品的致密性、力学性能、耐火度和晶型状态都有影响。制品在1350℃、Al_2O_3的含量为45%时,其性能指标为:体积密度2.47 g/cm~3、常温耐压41 MPa、耐火度1450℃、晶型状态以莫来石相和刚玉相为主。该制品的力学性能和使用性能较好,可为进一步利用粉煤灰制备高附加值材料奠定基础。
[Abstract]:Using fly ash as the main raw material, coal gangue and industrial alumina as auxiliary materials, the refractories with different Al_2O_3 content at different sintering temperature were prepared by controlling the material ratio. The structure and properties of the prepared materials were tested, and the microstructure of the materials was analyzed by means of X-ray diffraction and scanning electron microscope. The experimental results show that the densification, mechanical properties, fire resistance and crystalline state of refractory products are affected by different sintering temperature and alumina content. When the content of Al_2O_3 is 45 鈩，
本文编号：2385302
[Abstract]:Using fly ash as the main raw material, coal gangue and industrial alumina as auxiliary materials, the refractories with different Al_2O_3 content at different sintering temperature were prepared by controlling the material ratio. The structure and properties of the prepared materials were tested, and the microstructure of the materials was analyzed by means of X-ray diffraction and scanning electron microscope. The experimental results show that the densification, mechanical properties, fire resistance and crystalline state of refractory products are affected by different sintering temperature and alumina content. When the content of Al_2O_3 is 45 鈩，
本文编号：2385302
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