利用包覆型TiH_(2)发泡剂制备多孔隙泡沫铝材料的实验研究  

Experimental Study on Preparation of Porous Foam Aluminum with Coated TiH_(2) Foaming Agent

作　　者：郎存正 马秀生 陈钊 侯春[1] Lang Cunzheng;Ma Xiusheng;Chen Zhao;Hou Chun(Sinosteel Anshan Research Institute of Thermal Energy Co.,Ltd.,Anshan Liaoning 114020,China;Ansteel Group Chaoyang Iron and Steel Co.,Ltd.,Chaoyang Liaoning 122004,China)

机构地区：[1]中钢集团鞍山热能研究院有限公司,辽宁鞍山114020 [2]鞍钢集团朝阳钢铁有限公司,辽宁朝阳122004

出　　处：《山西冶金》2024年第8期26-28,共3页Shanxi Metallurgy

摘　　要：多孔隙泡沫铝材料制备过程中,发泡剂释氢温度控制是难点之一,本实验提出使用Al_(2)O_(3)对发泡剂TiH_(2)进行化学包覆,起到延缓释氢的作用。通过实验确定两种不同厚度的包覆层,采用图像颗粒分析系统BT-1600显微镜对包覆型发泡剂进行微观形貌观察,可明显观察出不同厚度包覆层金相分析图不同;采用热重分析仪对包覆型发泡剂进行包覆效果测试,可以分析出包覆性发泡剂初始释氢温度升高,而且释氢稳定。对比使用未包覆型的发泡剂制备的多孔隙泡沫铝材料,结果表明,用包覆型的TiH_(2)可以制备出的孔隙结构更均匀的泡沫铝材料。During the preparation of porous foam aluminum materials,the temperature control of hydrogen release of foaming agent is one of the difficulties.This experiment proposes to use Al_(2)O_(3) to chemically coat the foaming agent TiH_(2),which can delay the hydrogen release.Two different thicknesses of coating layers were determined through experiments,and the microstructure of the coating foaming agent was observed using the image particle analysis system BT-1600 microscope.It can be clearly observed that the metallographic analysis images of different thicknesses of coating layers are different.By using a thermogravimetric analyzer to test the encapsulation effect of the encapsulated foaming agent,it can be analyzed that the initial hydrogen release temperature of the encapsulated foaming agent increases and the hydrogen release is stable.Compared with the porous foam aluminum materials prepared with uncoated blowing agent,the results show that the porous foam aluminum materials with more uniform pore structure can be prepared with coated TiH_(2).

关 键 词：包覆型发泡剂 释氢温度 多孔隙泡沫铝材料 

分 类 号：TG146.21[一般工业技术—材料科学与工程]