冶金硅渣烧结多孔微晶玻璃的结构及性能
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摘要
以冶金硅渣为主要原料,采用水淬粉体直接烧结工艺,制备多孔微晶玻璃。利用XRD、DTA/TG、SEM以及图像分析等技术,研究烧结工艺对多孔微晶玻璃气孔孔径、表观密度、晶相组成以及抗压强度的影响。结果表明:多孔微晶玻璃的气孔孔径随烧结温度升高以及烧结时间延长而增大,随升温速率的增大先增大后减小;表观密度随烧结时间延长逐渐增大,随烧结温度升高和升温速率增大呈现出先减小后增大的趋势;抗压强度随烧结温度升高先缓慢增大后急剧降低。多孔微晶玻璃最佳烧结工艺是以30℃/min的升温速率加热到800℃烧结30 min,此时多孔微晶玻璃的平均孔径为1.2 mm,表观密度为0.81 g/cm~3,抗压强度为4.6 MPa。
Porous glass-ceramics were prepared by water quenching powder direct sintering process using metallurgical silicon slag as the main raw materials. The effects of sintering process on pore size,apparent density,crystal composition and compressive strength of the porous glass-ceramics were studied by means of XRD,DTA/TG,SEM and image analysis technique. The results show that the pore size of the porous glass-ceramics increases with the increasing of the sintering temperature and soaking time,and it increases first then decreases with the increasing of the heating rate. The apparent density of the porous glass-ceramics decreases first then increases with the increasing of the sintering temperature and heating rate,and it increases with the extension of the soaking time. The compressive strength of the porous glass-ceramics firstly increases slowly and then decreases rapidly with the increasing of the sintering temperature. The optimal sintering process of the porous glass-ceramics is sintering at 800 ℃ for 30 min with heating rate of 30 ℃/min,and the average pore size,apparent density and compressive strength of the porous glass-ceramics are 1. 2 mm,0. 81 g/cm~3 and 4. 6 MPa,respectively.
Porous glass-ceramics were prepared by water quenching powder direct sintering process using metallurgical silicon slag as the main raw materials. The effects of sintering process on pore size,apparent density,crystal composition and compressive strength of the porous glass-ceramics were studied by means of XRD,DTA/TG,SEM and image analysis technique. The results show that the pore size of the porous glass-ceramics increases with the increasing of the sintering temperature and soaking time,and it increases first then decreases with the increasing of the heating rate. The apparent density of the porous glass-ceramics decreases first then increases with the increasing of the sintering temperature and heating rate,and it increases with the extension of the soaking time. The compressive strength of the porous glass-ceramics firstly increases slowly and then decreases rapidly with the increasing of the sintering temperature. The optimal sintering process of the porous glass-ceramics is sintering at 800 ℃ for 30 min with heating rate of 30 ℃/min,and the average pore size,apparent density and compressive strength of the porous glass-ceramics are 1. 2 mm,0. 81 g/cm~3 and 4. 6 MPa,respectively.
引文
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[21]Guo H W,Gong Y X,Liu X N,et al.Elaboration and mechanical behavior of high strength foam glass[J].Journal of Shanxi University of Science and Technology,2010,3(28):1-6.
[22]Seifert-Kraus U,Schneider H.Cation distribution between cristobalite,tridymite,and coexisting glass phase in used silica bricks[J].Ceramics International,1984,10:135-142.
[2]鞠银燕,宋士华,陈晓峰.多孔陶瓷的制备、应用及其研究进展[J].硅酸盐通报,2007,26(5):969-974.JU Yin-yan,SONG Shi-hua,CHEN Xiao-feng.The preparations,applications and research development of the porous ceramics[J].Bulletin of the Chinese Ceramics Society,2007,26(5):969-974.
[3]杨梅,王立久.多孔微晶玻璃的制备、性能及用途[J].材料导报,2007,21(11):418-421.YANG Mei,WANG Li-jiu.Preparations,properties and applications of porous glass-ceramics[J].Materials Review,2007,21(11):418-421.
[4]马明龙.利用含钛高炉渣制备微晶泡沫玻璃的研究[D].沈阳:东北大学,2008.MA Ming-long,Preparation of porous glass-ceramics from titanium containing blast furnace slag[D].Shenyang:Northeastern University,2008.
[5]Bossert J,Fidancevska E.Obtaining of dense and highly porous ceramic materials from metallurgical slag[J].Science of Sintering,2003,35(2):85-91.
[6]Masanori S,Toshihiro T.Use of hydrothermal reactions for slag/glass recycling to fabricate porous materials[J].Current Opinion in Chemical Engineering,2014,3(1):7-12.
[7]冉岚,刘少友,文正康.利用电解锰渣制备多孔陶瓷材料[J].非金属矿,2014,37(4):30-33.RAN Lan,LIU Shao-you,WEN Zheng-kang.Preparation of porous ceramics by electrolytic manganese slag[J].Nonmetallic Mine,2014,37(4):30-33.
[8]瞿仁静,包稚群.从硅渣中提取工业硅的工艺[J].云南冶金,2012(3):83-85.ZHAI Ren-jing,BAO Zhi-qun.Process of extracting industrial silicon from silicon slag[J].Yunnan Metallurgy,2012(3):83-85.
[9]单继周,蒋元力,曹国喜.工业硅渣生产工艺条件研究进展[J].河南化工,2011,28(3):21-24.SHAN Ji-zhou,JIANG Yuan-li,CAO Guo-xi.Review of industrial silicon slag production process conditions[J].Henan Chemical Process,2011,28(3):21-24.
[10]左李萍,陆雷,朱凯华.泡沫微晶玻璃的发泡剂和稳泡剂的选择[J].中国陶瓷,2012,48(10):25-28.ZUO Li-ping,LU Lei,ZHU Kai-hua.The choice of foaming agent and foem stabilizer agent of foam glass-ceramics[J].China Ceramics,2012,48(10):25-28.
[11]Lu J S,Lu Z Y,Peng C H,et al.Influence of particle size on sinterability,crystallisation kinetics and flexural strength of wollastonite glass-ceramics from waste glass and fly ash[J].Materials Chemistry and Physics 2014,148:449-456.
[12]汤李缨,赵前,程金树,等.高岭土尾矿微晶玻璃的烧结与晶化[J].佛山陶瓷,1999,9(5):8-10.TANG Li-ying,ZHAO Qian,CHENG Jin-shu,et al.Sintering and crystallization of glass-ceramics made by Kaolin tailings[J].Foshan Ceramics,1999,9(5):8-10.
[13]Minay E J,Veronesi P,Cannillo V,et al.Control of pore size by metallic fibres in glass matrix composite foams produced by microwave heating[J].Journal of the European Ceramic Society,2004,24(10-11):3203-3208.
[14]Lee K N,Contamination effects on interfacial porosity during cyclic oxidation of mullite-coated silicon carbide[J].Journal of the American Ceramic Society,1998,81(12):3329-3332.
[15]吴柏诚.玻璃制造工艺基础[M].北京:中国轻工业出版社,1997.
[16]李玉海,黄晓莹,王承志,等.Si C颗粒的高温氧化动力学[J].材料研究学报,2009,23(6):582-586.LI Yu-hai,HUANG Xiao-ying,WANG Cheng-zhi,et al.High temperature oxidation kinetics of Si C particles[J].Chinese Journal of Materials Research,2009,23(6):582-586.
[17]冯宗玉,薛向欣,李勇,等.以油页岩渣为原料制备微晶泡沫玻璃[J].过程工程学报,2008,8(2):378-383.FENG Zong-yu,XUE Xiang-xin,LI Yong,et al.Preparation of foam glass-ceramics form oil shale residue[J].The Chinese Journal of Process Engineering,2008,8(2):378-383.
[18]Villegas M,Sierra T,Lucas F,et al.Oxidation treatments for Si C particles and its compatibility with glass[J].Journal of the European Ceramic Society,2007(27):861-865.
[19]张兆艳.粉煤灰泡沫玻璃的性能研究[J].玻璃与搪瓷,2001,29(3):20-24.ZHANG Zhao-yan.Research on properties of foamed glass made of fly-ash[J].Glass Enamel,2001,29(3):20-24.
[20]Cao J W,Lu J S,Jiang L X,et al.Oxidation behavior of metallurgical silicon slag under non-isothermal and isothermal conditions[J].Journal of Thermal Analysis and Calorimetry,2016,124(2):593-599.
[21]Guo H W,Gong Y X,Liu X N,et al.Elaboration and mechanical behavior of high strength foam glass[J].Journal of Shanxi University of Science and Technology,2010,3(28):1-6.
[22]Seifert-Kraus U,Schneider H.Cation distribution between cristobalite,tridymite,and coexisting glass phase in used silica bricks[J].Ceramics International,1984,10:135-142.