基于关键化学组分设计制备发泡陶瓷
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摘要
文章探究了基于关键化学组分设计制备发泡陶瓷过程中的制备条件,特别是关键化学组分SiC、Na_2O、Al_2O_3的含量对发泡陶瓷性能的影响。利用化学组分设计制备的发泡陶瓷具有良好的隔热性能,其导热系数达0. 09 W/(m·K),最可几孔径为2. 8 mm,大孔之间的孔壁上分布有平均孔径为2μm的微孔,这种独特的大孔-微孔的分级泡孔结构是其导热性能良好的关键原因。
In this paper,the preparation conditions in the process of designing and preparing foamed ceramics based on key chemical components were investigated,especially the effect of the contents of key chemical components such as SiC,Na_2O and Al_2O_3 on the properties of foamed ceramics. Foamed ceramics designed and prepared by using chemical components have good thermal insulation performance,with thermal conductivity reaching 0. 09 W/(m·K),the maximum pore size is 2. 8 mm,and micropores with an average pore diameter of 2 μm are distributed on the pore wall between the macropores,which unique macropore-micropore hierarchical cellular structure is the key reason for its good thermal conductivity.
In this paper,the preparation conditions in the process of designing and preparing foamed ceramics based on key chemical components were investigated,especially the effect of the contents of key chemical components such as SiC,Na_2O and Al_2O_3 on the properties of foamed ceramics. Foamed ceramics designed and prepared by using chemical components have good thermal insulation performance,with thermal conductivity reaching 0. 09 W/(m·K),the maximum pore size is 2. 8 mm,and micropores with an average pore diameter of 2 μm are distributed on the pore wall between the macropores,which unique macropore-micropore hierarchical cellular structure is the key reason for its good thermal conductivity.
引文
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[9]池跃章,余爱民,沈光银,等.成型压力和烧成温度对利用废渣和尾矿制备闭孔发泡陶瓷的影响[J].中国陶瓷,2009(10):69-71.
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[11]王敏.直接发泡法制备结构可控泡沫陶瓷[D].天津:天津大学,2012.
[12]赵威,王竹,高佳研,等.烧成工艺制度对钒尾矿基泡沫陶瓷性能的影响[J].人工晶体学报,2017,46(11):2213-2218.
[2]黄健,包启富,董伟霞,等.用硅酸盐废弃物制备泡沫陶瓷的研究[J].中国陶瓷,2014,50(12):78-81.
[3]刘欣,李家科,程凯.蛇纹石尾矿资源化制备发泡陶瓷的研究[J].陶瓷学报,2013,34(4):461-466.
[4]丁力,李缨,刘纯.利用珍珠岩尾矿制备发泡陶瓷的研究[J].墙材革新与建筑节能,2015(1):47-50.
[5]付思昱,黄建国.配方组分对泡沫玻璃性能的影响研究[J].中国陶瓷,2014(3):32-35.
[6]刘岩,黄政仁,董绍明,等.碳化硅泡沫陶瓷中烧结助剂对莫来石生成的影响[J].硅酸盐学报,2005,33(9):1105-1109.
[7]张勇林.高温发泡陶瓷制备基础研究[D].华南理工大学,2014.
[8]黎阳,刘卫,陈璐.不同粒度Si C颗粒低温制备Si C泡沫陶瓷的性能[J].人工晶体学报,2012,41(3):787-791.
[9]池跃章,余爱民,沈光银,等.成型压力和烧成温度对利用废渣和尾矿制备闭孔发泡陶瓷的影响[J].中国陶瓷,2009(10):69-71.
[10]丁力,李缨,刘纯.利用珍珠岩尾矿制备发泡陶瓷的研究[J].墙材革新与建筑节能,2015(1):47-50.
[11]王敏.直接发泡法制备结构可控泡沫陶瓷[D].天津:天津大学,2012.
[12]赵威,王竹,高佳研,等.烧成工艺制度对钒尾矿基泡沫陶瓷性能的影响[J].人工晶体学报,2017,46(11):2213-2218.