晶化温度对硅灰微晶玻璃性能的影响

硅酸盐通报 ›› 2024, Vol. 43 ›› Issue (3): 1103-1109.

所属专题：玻璃

晶化温度对硅灰微晶玻璃性能的影响

钟康东¹, 牛立斌¹, 左童瑶¹, 张国琛¹, 陈国芳²

1.西安科技大学材料科学与工程学院,西安 710054;
2.宁夏荣华缘特种新材料有限公司,石嘴山 753200

收稿日期:2023-09-15 修订日期:2023-12-04 出版日期:2024-03-15 发布日期:2024-03-27
通信作者: 牛立斌,博士,副教授。E-mail:dy059@126.com
作者简介:钟康东(1999—),男,硕士研究生。主要从事微晶玻璃的研究。E-mail:zkd9999718@163.com
基金资助:
陕西省重点研发计划项目(2023-YBGY-090)

Effect of Crystallization Temperature on Properties of Silicon Fume Glass-Ceramics

ZHONG Kangdong¹, NIU Libin¹, ZUO Tongyao¹, ZHANG Guochen¹, CHEN Guofang²

1. School of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, China;
2. Ningxia Rong Hua Yuan Metallurgy Co., Ltd., Shizuishan 753200, China

Received:2023-09-15 Revised:2023-12-04 Online:2024-03-15 Published:2024-03-27

摘要/Abstract

摘要： 为响应国家对固体废弃物资源循环利用的号召,坚持以绿色发展为理念,本文以高硅废微硅粉为主要原料,采用整体析晶法制备了CaO-Al₂O₃-SiO₂系微晶玻璃,采用TG-DSC、XRD、SEM等分析方法表征了微晶玻璃的晶相种类和显微形貌,并测试了其理化性能。研究表明,在900 ℃下核化2 h并在1 150 ℃晶化2 h后,可制备出以钙长石为主晶相的微晶玻璃,当晶化温度继续升高至1 200 ℃后,微晶玻璃中出现少量气泡,内部出现缺陷,从而导致析晶效果和理化性能下降。该方法制备出的微晶玻璃具有优良的机械性能,抗折强度为93.58 MPa,维氏硬度为845.62 HV_0.5,体积密度为2.88 g/cm³。

关键词: 晶化温度, 微晶玻璃, 微硅粉, 工业废渣, 固体废弃物, 整体析晶法

Abstract: In order to respond to the national call for recycling of solid waste resources and adhere to the concept of green development, high-silicon waste silica fume was used as the main raw material, and CaO-Al₂O₃-SiO₂ series glass-ceramics were prepared by the overall crystallization method. The crystal phase type and micromorphology of glass-ceramics were characterized by TG-DSC, XRD, SEM, and the physical and chemical properties of glass-ceramics were tested. The studies show that after 2 h nucleation at 900 ℃ and the crystallization temperature is 1 150 ℃ for 2 h, glass-ceramics with anorthite as the main crystal phase can be prepared. When the crystallization temperature continues to rise to 1 200 ℃, a small amount of bubbles appear in glass-ceramics, and internal defects appear, which results in the decline of crystallization effect and physical and chemical properties. The glass-ceramics prepared by this method have excellent mechanical properties, the flexural strength is 93.58 MPa, the Vickers hardness is 845.62 HV_0.5, the bulk density is 2.88 g/cm³.

Key words: crystallization temperature, glass-ceramics, silica fume, industrial waste residue, solid waste, overall crystallization method

中图分类号:

TB321

钟康东, 牛立斌, 左童瑶, 张国琛, 陈国芳. 晶化温度对硅灰微晶玻璃性能的影响[J]. 硅酸盐通报, 2024, 43(3): 1103-1109.

ZHONG Kangdong, NIU Libin, ZUO Tongyao, ZHANG Guochen, CHEN Guofang. Effect of Crystallization Temperature on Properties of Silicon Fume Glass-Ceramics[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(3): 1103-1109.

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晶化温度对硅灰微晶玻璃性能的影响

Effect of Crystallization Temperature on Properties of Silicon Fume Glass-Ceramics

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