INFLUENCE OF SINTERING TEMPERATURE ON THE STRUCTURAL OF Mg2Si0.3Sn0.7 ALLOY PREPARED BY POWDER METALLURGY

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-12-13 DOI:10.36547/ams.29.4.1965

Nyoman Gede, Putrayasa Astawa, Muhammad Yunan Hasbi, S. Chandra, Dedi Pria Utama, R. Roberto, A. Imaduddin, S. Yudanto

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引用次数: 0

Abstract

The efficiency of energy consumption can be improved by reducing the heat lost during the combustion process of automotive engines. By converting waste heat energy into other energy sources that can be used directly, efficiency can be achieved. Mg2Si0.3Sn0.7 is a metal alloy that has the potential to convert waste heat into power. In this research, we used the powder metallurgy method to synthesize the Mg2Si0.3Sn0.7-based alloy. A mixture of Mg, Si, and Sn powders that had been milled for 2 hours was insulated in the stainless-steel tube to avoid oxidation and combustion. Heat treatment was conducted with temperature variations of 700, 750, and 800°C for 4 hours to investigate the influence of sintering temperature on the crystal structure of the Mg2Si0.3Sn0.7-based alloy. The microstructure and formation of the material were examined using an X-ray diffractometer (XRD) and a scanning electron microscope (SEM). Based on XRD analysis, it was found that the Mg2Si0.3Sn0.7 phase and a small amount of magnesium oxide (MgO) phase have formed. Due to the phase transition from Mg2Si0.3Sn0.7 to Mg2Sn at a sintering temperature of 800°C, the cubic lattice constant -a changes from 0.6631 nm to 0.6765 nm.

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粉末冶金法制备的 Mg2Si0.3Sn0.7 合金淬火温度对其结构的影响

通过减少汽车发动机燃烧过程中的热量损失，可以提高能源消耗效率。通过将废热能转化为可直接使用的其他能源，可以提高效率。Mg2Si0.3Sn0.7 是一种金属合金，具有将废热转化为动力的潜力。在这项研究中，我们采用粉末冶金法合成了 Mg2Si0.3Sn0.7 基合金。为了避免氧化和燃烧，我们将经过 2 小时研磨的 Mg、Si 和 Sn 混合粉末绝缘在不锈钢管中。为了研究烧结温度对 Mg2Si0.3Sn0.7 基合金晶体结构的影响，分别在 700、750 和 800°C 温度下进行了 4 小时的热处理。使用 X 射线衍射仪（XRD）和扫描电子显微镜（SEM）对材料的微观结构和形成进行了检测。根据 XRD 分析，发现形成了 Mg2Si0.3Sn0.7 相和少量氧化镁（MgO）相。在 800°C 的烧结温度下，由于从 Mg2Si0.3Sn0.7 到 Mg2Sn 的相变，立方晶格常数 -a 从 0.6631 nm 变为 0.6765 nm。

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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.