The effect of compaction pressure, sintering time, and temperature on the characterization of an aluminum/alumina composite with rising alumina proportions

Q2 Chemistry

Current Chemistry Letters Pub Date : 2023-01-01 DOI:10.5267/j.ccl.2022.12.008

A. Choudhury, J. Nanda, S. N. Das

引用次数: 1

Abstract

The purpose of this article is to investigate the effect of various process parameters such as compaction pressure, sintering temperature, and time on the physio-mechanical properties of a powder metallurgy-fabricated composite made of pure aluminium/alumina. Temperatures (580°C, 600°C, and 630°C), periods (1.5, 2, and 2.5 hr), compacting loads (30KN-65KN), and alumina percentages (2, 4, 6, and 8weight percent) are all considered. X-ray diffraction (XRD) and X-ray fluorescence spectroscopy (XRF) studies are carried out to determine the phases present and their proportions. Crystallite size study is performed using XRD data, and the Al+4 weight % alumina composite has the smallest size of any composite tested. For optimization, sintering density, porosity, and microhardness are calculated. Scanning electron microscopy (SEM) is used to analyse the different microstructures. At 600°C, 2 hr of operating time, and 4weight% alumina additions, the highest sintering density and microhardness are found.

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研究了压实压力、烧结时间和温度对铝/氧化铝复合材料性能的影响

研究了压实压力、烧结温度、烧结时间等工艺参数对纯铝/氧化铝粉末冶金复合材料物理力学性能的影响。温度(580°C, 600°C和630°C)，周期(1.5,2和2.5小时)，压实载荷(30KN-65KN)和氧化铝百分比(2,4,6和8重量%)都被考虑在内。进行了x射线衍射(XRD)和x射线荧光光谱(XRF)研究，以确定存在的相及其比例。利用XRD数据对晶粒尺寸进行了研究，结果表明，Al+4重量%氧化铝复合材料的晶粒尺寸是所有复合材料中最小的。为了优化，计算了烧结密度、孔隙率和显微硬度。利用扫描电子显微镜(SEM)分析了不同的微观结构。在600℃，2小时的操作时间，4重量%的氧化铝添加量，发现最高的烧结密度和显微硬度。

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

Current Chemistry Letters Chemistry-Chemistry (all)

CiteScore

4.90

自引率

0.00%

发文量

审稿时长

20 weeks

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