以纯铁粉、铬粉、铝粉为原料,采用粉体增塑挤压-烧结工艺制备Fe-25Cr-5Al金属蜂窝,研究不同的烧结温度和时间条件下烧结蜂窝的收缩率、表观密度和组织结构特征.研究表明,随烧结温度的升高,蜂窝的收缩率和表观密度增大,径向收缩率的范围为5.6%~12.3%,表观密度的范围为0.98~1.09g/cm3.在1250℃烧结时,随烧结时间的延长,蜂窝的收缩率和表观密度也随之增大,径向收缩率的范围为6.5%~12.1%,表观密度的范围为0.85~1.02g/cm3.烧结组织为Fe-Cr固溶体(α-Fe)基体,少量Fe-Al,Cr-Al间化合物及Cr2O3,Al2O3.
参考文献
[1] | 安琴;冯长根;游少雄.车用催化剂载体的发展与选择[J].环境保护,1999(11):21-23. |
[2] | 陈勇军,左孝青,史庆南,宿罡,王茗.金属蜂窝的开发、发展及应用[J].材料导报,2003(12):32-35. |
[3] | 陈颖;聂柞仁;周美玲 等.汽车尾气净化器用金属载体研究进展[J].材料导报,1999,13(02):22-26. |
[4] | COCHRAN J;LEE K J;MCDOWELL D.Low density monolithic metal honeycombs by thermal chemical processing[A].Huntsville,AL,2000:25-38. |
[5] | COCHRAN J;LEE K J;MCDOWELL D L.Multifunctional Metallic Honeycombs by thermal chemical processing[A].Seattle,WA:TMS,2002:127-136. |
[6] | CLARK J L;COCHRAN J;THOMAS H.Metal honeycomb from oxide paste:maraging steel and super invar structure and properties[A].Seattle,WA:TMS,2002:116-125. |
[7] | HAYES A M;MCDOWELL D L;COCHRAN J.Properties of maraging steel honeycomb under compressive quasistatic and dynamic loading[A].Seattle,WA:TMS,2002:137-146. |
[8] | HURYSZ KM;COCHRAN J;SANDERS T H.Modeling powder extrusion pastes for forming light weight multifunctional structures[A].Seattle,WA:TMS,2002:167-176. |
[9] | CLARK J L;COCHRAN J;SANDERS T H.Reduction of iron and chromium sesquioxide powder mixtures for metal honeycomb structure[A].Seattle,WA:TMS,2002:147-155. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%