工程科学学报，第38卷，第2期：207-212,2016年2月 Chinese Journal of Engineering,Vol.38,No.2:207-212,February 2016 DOI:10.13374/j.issn2095-9389.2016.02.008:http://journals.ustb.edu.cn 钢渣基高碱度微晶玻璃的一步法制备及工艺参数 研究 赵贵州2》，李宇12，代文彬2》，苍大强2》 1)北京科技大学钢铁治金新技术国家重点实验室，北京1000832)北京科技大学治金与生态工程学院，北京100083 ☒通信作者，E-mail:leeuu00@sina.com 摘要为了提高微晶玻璃原料中高钙治金渣的摻量，需要制备出碱度更高的微晶玻璃.本文采用一步法，以钢渣为主要原 料，制备碱度(C0与Si02的质量比)为0.9的钢渣基高碱度微晶玻璃.通过X射线衍射分析、扫描电镜和性能测试等手段， 研究热处理条件对微晶玻璃微观形貌及线收缩率、体积密度和抗折强度等性能的影响规律.研究表明，高碱度微晶玻璃适合 采用一步法制备工艺，当在1100℃保温120min时，微晶玻璃烧结过程基本完成，此时获得最大体积密度2.4g°cm,最高抗 折强度56.4MPa.微晶玻璃的主晶相为钙铝黄长石，副晶相为辉石.基础玻璃颗粒在升温过程中完成了成核和析晶过程，而 在保温过程中主要进行的是基础玻璃颗粒的烧结致密化和晶体的进一步发育.升温至1100℃保温30in,微晶玻璃的抗折 强度超过45MP,微晶玻璃内部晶体呈方柱状交织排列并构成晶体骨架分布在残余的玻璃基体中：随着保温时间的增加，微 晶玻璃的线性烧结收缩率、体积密度和抗折强度均逐渐增大，而晶相的含量基本保持不变，晶体逐渐由球形颗粒状和短柱状 发育为长柱状.晶体的形状以及与残余玻璃相构成的整体致密结构是导致高碱度微晶玻璃力学性能提高的主要因素. 关键词微晶玻璃：钢渣：烧结：力学性能：废弃物利用 分类号TQ171:T09 Preparation and processing parameter research of high basicity steel slag-based glass-ceramics with one-step sintering process ZHAO Gui-zhou',LI Yu,DAI Wen-bin',CANG Da-giang 1)State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing,Beijing 100083,China 2)School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China Corresponding author,E-mail:leeuu00@sina.com ABSTRACT High basicity (CaO/SiO,mass ratio)glass-ceramics were prepared to improve the usage of high calcium metallurgical slags in raw materials.Glass-ceramics with a high basicity of 0.9 were prepared using steel slag as the main raw material through one- step sintering process.The influences of heat treatment on the microstructure,linear shrinkage,bulk density and bending strength of glass-ceramics were investigated by X-ray diffraction,scanning electron microscopy and performance testing.The results show that one-step sintering process is suitable for preparing high basicity glass-ceramics.The sintering process of the glass-ceramics is basically completed after heat treatment at 1100C for 120 min,with the largest bulk density of 2.4gcmand the optimal bending strength of 56.4 MPa.The main crystalline phase of the glass-ceramics is gehlenite and the secondary crystalline phase is augite.The nucleation and crystallization process is completed in the heating process,while in the heat preservation process the sintering densification and crystal growth are dominant.After heating to 1100C and holding for 30 min,the bending strength of the glass-ceramics exceeds 45 MPa.Columnar crystals are intertwined together to form the crystal skeleton which constitutes the microstructure with residual glass 收稿日期：2014-12-13 基金项目：国家自然科学基金资助项目(51474027)：北京高等学校“青年英才计划”资助项目(YET0348)工程科学学报，第 38 卷，第 2 期: 207--212，2016 年 2 月 Chinese Journal of Engineering，Vol． 38，No． 2: 207--212，February 2016 DOI: 10． 13374 /j． issn2095--9389． 2016． 02． 008; http: / /journals． ustb． edu． cn 钢渣基高碱度微晶玻璃的一步法制备及工艺参数 研究 赵贵州1，2) ，李 宇1，2) ，代文彬1，2) ，苍大强1，2) 1) 北京科技大学钢铁冶金新技术国家重点实验室，北京 100083 2) 北京科技大学冶金与生态工程学院，北京 100083  通信作者，E-mail: leeuu00@ sina． com 摘 要 为了提高微晶玻璃原料中高钙冶金渣的掺量，需要制备出碱度更高的微晶玻璃． 本文采用一步法，以钢渣为主要原 料，制备碱度( CaO 与 SiO2的质量比) 为 0. 9 的钢渣基高碱度微晶玻璃． 通过 X 射线衍射分析、扫描电镜和性能测试等手段， 研究热处理条件对微晶玻璃微观形貌及线收缩率、体积密度和抗折强度等性能的影响规律． 研究表明，高碱度微晶玻璃适合 采用一步法制备工艺，当在 1100 ℃保温 120 min 时，微晶玻璃烧结过程基本完成，此时获得最大体积密度 2. 4 g·cm － 3，最高抗 折强度 56. 4 MPa． 微晶玻璃的主晶相为钙铝黄长石，副晶相为辉石． 基础玻璃颗粒在升温过程中完成了成核和析晶过程，而 在保温过程中主要进行的是基础玻璃颗粒的烧结致密化和晶体的进一步发育． 升温至 1100 ℃ 保温 30 min，微晶玻璃的抗折 强度超过 45 MPa，微晶玻璃内部晶体呈方柱状交织排列并构成晶体骨架分布在残余的玻璃基体中; 随着保温时间的增加，微 晶玻璃的线性烧结收缩率、体积密度和抗折强度均逐渐增大，而晶相的含量基本保持不变，晶体逐渐由球形颗粒状和短柱状 发育为长柱状． 晶体的形状以及与残余玻璃相构成的整体致密结构是导致高碱度微晶玻璃力学性能提高的主要因素． 关键词 微晶玻璃; 钢渣; 烧结; 力学性能; 废弃物利用 分类号 TQ171; TF09 收稿日期: 2014--12--13 基金项目: 国家自然科学基金资助项目( 51474027) ; 北京高等学校“青年英才计划”资助项目( YETP0348) Preparation and processing parameter research of high basicity steel slag-based glass-ceramics with one-step sintering process ZHAO Gui-zhou1，2) ，LI Yu1，2)  ，DAI Wen-bin1，2) ，CANG Da-qiang1，2) 1) State Key Laboratory of Advanced Metallurgy，University of Science and Technology Beijing，Beijing 100083，China 2) School of Metallurgical and Ecological Engineering，University of Science and Technology Beijing，Beijing 100083，China  Corresponding author，E-mail: leeuu00@ sina． com ABSTＲACT High basicity ( CaO/ SiO2 mass ratio) glass-ceramics were prepared to improve the usage of high calcium metallurgical slags in raw materials． Glass-ceramics with a high basicity of 0. 9 were prepared using steel slag as the main raw material through one￾step sintering process． The influences of heat treatment on the microstructure，linear shrinkage，bulk density and bending strength of glass-ceramics were investigated by X-ray diffraction，scanning electron microscopy and performance testing． The results show that one-step sintering process is suitable for preparing high basicity glass-ceramics． The sintering process of the glass-ceramics is basically completed after heat treatment at 1100 ℃ for 120 min，with the largest bulk density of 2. 4 g·cm － 3 and the optimal bending strength of 56. 4 MPa． The main crystalline phase of the glass-ceramics is gehlenite and the secondary crystalline phase is augite． The nucleation and crystallization process is completed in the heating process，while in the heat preservation process the sintering densification and crystal growth are dominant． After heating to 1100 ℃ and holding for 30 min，the bending strength of the glass-ceramics exceeds 45 MPa． Columnar crystals are intertwined together to form the crystal skeleton which constitutes the microstructure with residual glass