废弃蛋壳和 SiC 添加对混杂绿色金属基复合材料比强度和热膨胀的影响。

Effects of waste eggshells and SiC addition on specific strength and thermal expansion of hybrid green metal matrix composite.

机构信息

School of Engineering, Gautam Buddha University, Greater Noida, Gautam Buddha Nagar, U.P. 201310, India.

School of Engineering, Gautam Buddha University, Greater Noida, Gautam Buddha Nagar, U.P. 201310, India; Noida Institute of Engineering and Technology, Greater Noida, Gautam Buddha Nagar, U.P. 201310, India.

出版信息

J Hazard Mater. 2017 Jul 5;333:1-9. doi: 10.1016/j.jhazmat.2017.01.002. Epub 2017 Mar 18.

DOI:10.1016/j.jhazmat.2017.01.002

PMID:28340384

Abstract

Chicken eggshell waste is an industrial byproduct, and its disposal constitutes a serious environmental hazard. Chicken eggshell can be used in commercial products to produce new materials with low cost and density. Low density material which can sustain at higher temperature is a remarkable area of research. Keeping these facts in the mind, the present investigation aims to study the physical behaviour, specific strength and thermal expansion of AA2014/SiC/carbonized eggshell hybrid green metal matrix composites. Microstructure of hybrid green metal matrix shows that the reinforcement particles (SiC particulates and carbonized eggshells particles) are uniformly distributed in the matrix AA2014 alloy. Specific strength for the composites containing 2.5wt.% SiC and up to 7.5wt.% carbonized eggshell was observed to be higher than that of the other selected composites. While for the same composition (AA2014/2.5% SiC/7.5% carbonized eggshell composites), porosity was observed lower than other selected composites. The results revealed that sample of AA2014/2.5% SiC/7.5% carbonized eggshell showed minimum cross sectional area reduction after the thermal expansion at 450°C among all the selected samples. Overall costs of hybrid metal matrix composites were also calculated.

摘要

鸡蛋壳废料是一种工业副产品，其处理构成了严重的环境危害。鸡蛋壳可用于商业产品，以生产具有低成本和低密度的新材料。能够承受更高温度的低密度材料是一个值得研究的显著领域。考虑到这些事实，本研究旨在研究 AA2014/SiC/碳化蛋壳混合绿色金属基复合材料的物理行为、比强度和热膨胀。混合绿色金属基复合材料的微观结构表明，增强颗粒（SiC 颗粒和碳化蛋壳颗粒）均匀分布在 AA2014 合金基体中。观察到含有 2.5wt.% SiC 和高达 7.5wt.%碳化蛋壳的复合材料的比强度高于其他选定的复合材料。而对于相同的成分（AA2014/2.5% SiC/7.5%碳化蛋壳复合材料），观察到其孔隙率低于其他选定的复合材料。结果表明，在所有选定的样品中，AA2014/2.5% SiC/7.5%碳化蛋壳在 450°C 的热膨胀后表现出最小的横截面积减少。还计算了混合金属基复合材料的总成本。