CaO对花岗岩废渣微晶玻璃结构及性能的影响

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英文篇名：Influence of CaO on the Structure and Properties of Granite residual Glass-ceramics 作者：康其锋 ; 王振 ; 黄永前 英文作者：KANG Qifeng;WANG Zhen;HUANG Yongqian;College of Material Science and Engineering, Sichuan University; 关键词：CaO ; 花岗岩废渣 ; 微晶玻璃 ; 晶相组成 ; 力学性能 英文关键词：CaO;;granite residual;;glass-ceramic;;phase composition;;mechanical property 中文刊名：玻璃 英文刊名：Glass 机构：四川大学材料科学与工程学院; 出版日期：2019-05-25 出版单位：玻璃 年：2019 期：05 语种：中文; 页：5-9 页数：5 CN：13-1106/TQ ISSN：1003-1987 分类号：TQ171.733

摘要

用熔融法制备了花岗岩废渣微晶玻璃。采用差示扫描量热法(DSC)、X-射线衍射(XRD)、扫描电子显微镜(SEM)等测试方法研究了CaO对微晶玻璃结构及性能的影响。结果表明:CaO取代量为0%时,试样中晶相为铁板钛矿,透辉石、镁橄榄石;随着CaO取代量增加到4%,试样中晶相为透辉石相,铁板钛矿,试样的力学性能最为优异(CaO取代量0～6%),抗弯强度和显微硬度分别为142.53 MPa、6.97 GPa。
        Granite residual glass-ceramics were prepared by melting technique. The effects of CaO on the structure and properties of glass-ceramics were investigated by differential scanning calorimetry(DSC),X-ray diffraction(XRD) and scanning electron microscopy(SEM). The results showed that when the CaO substitution content was 0%, the crystalline phases of the sample were pseudobrookite, diopside and forsterite; as the CaO substitution content increased to 4%, the crystalline phases of the sample were pseudobrookite and diopside, the sample exhibited the most excellent mechanical properties( CaO substitution 0～6%), and the flexural strength and microhardness were 142.53 MPa and 6.97 GPa,respectively.

引文

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