Glass–ceramic foams from waste glass and natural red soil

IF 1.9 4区 材料科学 Q3 Materials Science
Amel Sadji, Mohamed Redda Boudchicha, Aicha Ziouche, Abdelkader Filali, Slimane Achour
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引用次数: 0

Abstract

In this study, waste glass obtained from a discarded green glass bottle and unexploited natural red soil (RS) were prepared to get glass–ceramic foams. Red soil is an earthy material, which is used as a foaming agent. A mixture of starting powders containing different mass fractions (5–16 wt.%) of RS with particle size smaller than 20 μm was uniaxially pressed (at 30 MPa), and the obtained compacts were fired at different temperatures (750–850 °C) and holding time (30–120 min). Furthermore, the influences of temperature, holding time, and natural rock additions on the structure, type, and size of pores, besides physical and mechanical properties of the processed foamed glass–ceramic samples, were investigated. The results show that the optimum foaming temperature was found to be 800 °C leading to a maximum value of porosity as high as 90%, while the bulk density and compressive strength reached the values 0.26–0.75 g·cm−3 and 1.2–6.1 MPa, respectively. Based on the present data, the obtained glass–ceramic allowed the preparation of different porosity types. Therefore, they provide practical value for specific applications where thermal insulation is desired.

由废玻璃和天然红土制成的玻璃陶瓷泡沫
本研究以废弃的绿色玻璃瓶回收的废玻璃和未开发的天然红土(RS)为原料制备玻璃陶瓷泡沫。红土是一种土质物质,可用作发泡剂。将粒径小于20 μm的RS的不同质量分数(5 ~ 16 wt.%)的起始粉末混合在一起,单轴加压(30 MPa),在不同温度(750 ~ 850℃)和保温时间(30 ~ 120 min)下烧制。此外,研究了温度、保温时间和天然岩石添加量对泡沫玻璃样品的孔隙结构、类型和大小以及物理力学性能的影响。结果表明:发泡温度为800℃时,孔隙率最高可达90%,容重为0.26 ~ 0.75 g·cm−3,抗压强度为1.2 ~ 6.1 MPa;基于目前的数据,所获得的玻璃陶瓷允许制备不同的孔隙类型。因此,它们为需要隔热的特定应用提供了实用价值。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of the Australian Ceramic Society
Journal of the Australian Ceramic Society MATERIALS SCIENCE, CERAMICS-
CiteScore
3.20
自引率
5.30%
发文量
1
审稿时长
>12 weeks
期刊介绍: Publishes high quality research and technical papers in all areas of ceramic and related materials Spans the broad and growing fields of ceramic technology, material science and bioceramics Chronicles new advances in ceramic materials, manufacturing processes and applications Journal of the Australian Ceramic Society since 1965 Professional language editing service is available through our affiliates Nature Research Editing Service and American Journal Experts at the author''s cost and does not guarantee that the manuscript will be reviewed or accepted
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