以CaCO_3为发泡剂制备泡沫ZL104过程中工艺参数的探讨  

Study on Technological Parameters in Fabrication Process of ZL104 Foams Using CaCO_3 as Foaming Agent

作　　者：罗彦茹[1] 于思荣[1] 朱先勇[1] 刘家安[1] 张英波[2] 

机构地区：[1]吉林大学,吉林长春130025 [2]大连交通大学,辽宁大连116028

出　　处：《稀有金属材料与工程》2011年第S2期111-114,共4页Rare Metal Materials and Engineering

基　　金：教育部新世纪优秀人才支持计划项目

摘　　要：以CaCO3粉末和SiC颗粒分别作为发泡剂和稳定剂,采用液态法制备了泡沫ZL104,确定了发泡温度,并分析了制备过程中CaCO3加入量和保温时间对泡沫ZL104孔径和孔隙率的影响规律。结果发现:泡沫ZL104的发泡温度应选为700℃;CaCO3加入量的增加会导致泡沫ZL104的孔隙率呈非线性增大,加入量超过2%(质量分数)时,对孔隙率的影响不显著,故CaCO3的加入量应该控制在2%以内;保温时间在2~8min以内时不会发生气泡合并和破裂。ZL104 foams were fabricated by a liquid method using CaCO3 powder and SiC particles as foaming agent and stabilizing agent respectively. Foaming temperature was confirmed. Influencing rules of CaCO 3 increment and holding time on pore size and porosity during preparation process were analyzed. The results show that foaming temperature of ZL104 foams should be 700 ℃. CaCO3 increment can lead to non-linear growth of the porosity of ZL104 foams. CaCO3 increment should be less than 2 wt% because the effect of it on porosity is inapparent when it is over 2 wt%. Combination and rupture of pores can’t take place as holding time varies from 2 min to 8 min.

关 键 词：发泡温度 CACO3 保温时间 孔隙率 

分 类 号：TB383.4[一般工业技术—材料科学与工程]