High Strength Pyroxene-Based Glass- Ceramic Foams in the Presence of Fe2O3

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2020-09-10 DOI:10.22068/IJMSE.17.3.1

P. Shahsavari, B. E. Yekta, V. Marghussian

引用次数: 1

Abstract

Strong glass-ceramic foams with a compressive strength of 20 MPa were prepared by adding various amounts of Fe2O3 to a soda lime-based glass composition, using SiC as a foaming agent. The foams were prepared by heat treatment of the compacted samples in the range of 750–950°C and various soaking times. The crystallization behavior of the samples was investigated by Simultaneous Thermal Analysis (STA), Scanning Electron Microscope, and X-Ray Diffractometer (XRD). Based on the results, solid solutions of pyroxene groups were crystallized by the surface mechanism, between 730 and 900 ̊C, and their amounts increased with the increase in the added iron oxide. In addition, we found that Fe2O3 neither acts as a nucleant for pyroxene nor as an oxidizer for SiC. The results also showed that the compressive strength as well as the crystallization behavior of the foams were influenced by the presence of the SiC particles.

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Fe2O3存在下的高强度辉石基玻璃陶瓷泡沫

使用SiC作为发泡剂，通过向钠钙基玻璃组合物中添加各种量的Fe2O3来制备抗压强度为20MPa的强玻璃陶瓷泡沫。通过在750–950°C范围内对压实样品进行热处理和不同的浸泡时间来制备泡沫。通过同时热分析（STA）、扫描电子显微镜和X射线衍射仪（XRD）研究了样品的结晶行为。根据研究结果，辉石基团的固溶体在730至900°C之间通过表面机制结晶，其数量随着氧化铁添加量的增加而增加。此外，我们发现Fe2O3既不是辉石的核化剂，也不是SiC的氧化剂。结果还表明，SiC颗粒的存在影响了泡沫的抗压强度和结晶行为。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.