白云石
烧结
材料科学
扫描电子显微镜
粒度
镁
矿物学
冶金
复合材料
地质学
作者
Wang Nian Zhang,Xi Tang Wang,Zhou Fu Wang
出处
期刊:Solid State Phenomena
日期:2018-08-01
卷期号:281: 156-162
标识
DOI:10.4028/www.scientific.net/ssp.281.156
摘要
The influence of the light burning temperature on the sintering property of nature dolomite has been investigated by two-step sintering process in the temperature range 1500 °C to 1600 °C. The resulting bulk densities and apparent porosities of the sintered dolomite samples were examined, and analyzing the sintered dolomite by scanning electron microscopy and X-ray diffraction were performed. The results showed light burned at 850 °C for 3 h, the main phases of the dolomite with 3-5 grain size were MgO, CaO and little CaCO 3 , and then fired at 1600 °C,the density of sintering dolomite reached to 3.38 g/cm 3 , the apparent property was 1.2 %, the size of MgO grain up to 3.75 μm . However when dolomite light burned at 1050 °C for 3 h, the main phases were MgO and CaO, and then fired at 1600 °C,the density of sintering dolomite only was 3.30 g/cm 3 , the apparent property was 2.3 %, the size of MgO only was 3.05 μm .
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