| 利用煤炭固体废物制备微晶玻璃 |
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| 引用本文： | 杨梅,邱克辉,龙剑平,李峻峰,邓寅生,邢学玲.利用煤炭固体废物制备微晶玻璃[J].实验室研究与探索,2011,30(5):42-45. |
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| 作者姓名： | 杨梅 邱克辉 龙剑平 李峻峰 邓寅生 邢学玲 |
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| 作者单位： | 1. 成都理工大学,材料与化学化工学院,四川,成都,610059
2. 河南理工大学,资源环境学院,河南,焦作,454000 |
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| 摘 要： | 采用50%以上的煤矸石与粉煤灰废弃物为主要原料,并添加少量的CaO、A l2O3、SiO2、MgO、K2O、Na2O等矿物原料,以CaF2/TiO2为晶核剂,经过1 400~1 500℃熔制、水淬和晶化热处理等过程制备出CaO-A l2O3-SiO2系微晶玻璃。首先对微晶玻璃的CaO、A l2O3、SiO2等成分进行优化设计,用TDA研究核化温度、核化时间、晶化温度、晶化时间及升温速率等热处理工艺参数的影响,采用SEM和XRD分析微晶玻璃的形貌与晶相结构,并检测其密度、吸水率、抗折强度、显微硬度、耐腐蚀性等物理力学性能。所制备的40%SiO2-15%A l2O3-30%CaO(质量百分数)微晶玻璃以黄长石为主晶相,晶粒度约4μm,具有优异的物理力学性能,在建筑材料领域有良好的应用前景。
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| 关 键 词： | 无机非金属材料 煤炭固体废物 微晶玻璃 综合实验 |
Comprehensive Experiment Based on the Preparation of Glass Ceramics from Coal Wastes |
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| YANG Mei,QIU Ke-hui,LONG Jian-ping,LI Jun-feng,DENG Ying-sheng,XING Xue-ling.Comprehensive Experiment Based on the Preparation of Glass Ceramics from Coal Wastes[J].Laboratory Research and Exploration,2011,30(5):42-45. |
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| Authors: | YANG Mei QIU Ke-hui LONG Jian-ping LI Jun-feng DENG Ying-sheng XING Xue-ling |
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| Institution: | YANG Mei1,QIU Ke-hui1,LONG Jian-ping1,LI Jun-feng1,DENG Ying-sheng2,XING Xue-ling2(1.College of Materials and Chemistry & Chemical Engineering,Chengdu University of Technology,Chengdu 610059,China,2.School of Materials Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,China) |
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| Abstract: | Glass ceramics was prepared from coal gangue and coal fly ash for comprehensive utilization of coal industry wastes.Up to 50% coal wastes and CaO,Al2O3,SiO2,MgO,K2O,Na2O were used as raw materials,and CaF2/TiO2 were used as nucleating agent.CaO-Al2O3-SiO2 glass ceramics were prepared following 1 400-1 500 ℃melting,water quenching and crystallization.The chemical compositions such as CaO,Al2O3,SiO2 were designed,the effects of heat treatment schedule were investigated by DTA;the microstructure and morphology were analyzed by SEM and XRD;the density,adsorption rate,bending strength,microhardness,corrosion resistance of the glass ceramics were measured.The prepared 40%SiO2-15%Al2O3-30%CaO glass ceramics had a major crystal phase of gehlenite with a size of 4 μm.The glass ceramics has large prospect in construction industry due to the excellent properties. |
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| Keywords: | inorganic nonmetal material coal wastes glass ceramics comprehensive experiment |
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