| Sintering of the NiFe2O4-10NiO/xNi Cermet |
| |
| 作者姓名： | 张雷 李志友 周科朝 李劼 赖延清 |
| |
| 作者单位： | [1]State Key Laboratory of Powder Metallurgy, Changsha 410083, China [2]School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China |
| |
| 摘 要： | The sintering behavior of NiFe2 O4-10NiO/xNi cermet which was used as the most prospective inert anode materials for aluminum electrolysis was studied by examining the effects of raw powder particle size, sintering temperature, and the contents of Ni. The results show that fine particle size enables the powder to have high driving force for sintering. High temperature is beneficial to densification, but the ultra-high temperature does harm to the improvement of the density. The samples of NiFe2O4-10NiO/SNi has the highest relative density of 97.28 % when it is sintered at 1 350 ℃, but it decreases to 95.23 % when sintered at 1 400 ℃. Low addition of Ni has a great help to the sintering of NiFe2 O4-10NiO matrix. When the samples are sintered at 1 350 ℃ and the mass fraction of Ni is 5%, the highest relative density is gained, but the density decreases with the further increase of Ni contents. The low density of the sintered samples of NiFe2 O4-10NiO/17Ni is attributed to the high volume fraction of pores.
|
| 关 键 词： | NiFe2O4-10NiO/xNi 陶瓷 烧结 稠化 惰性阳极 |
| 文章编号： | 1005-9784（2006）04-0332-05 |
| 收稿时间： | 2006-03-25 |
| 修稿时间： | 2006-05-10 |
Sintering of the NiFe2O4-10NiO/ x Ni cermet |
| |
| Zhang Lei , Li Zhi-you , Zhou Ke-chao , Li Jie and Lai Yan-qing.Sintering of the NiFe2O4-10NiO/xNi Cermet[J].Journal of Central South University of Technology,2006,13(4):332-336. |
| |
| Authors: | Zhang Lei Li Zhi-you Zhou Ke-chao Li Jie and Lai Yan-qing |
| |
| Affiliation: | (1) State Key Laboratory of Powder Metallurgy, 410083 Changsha, China;(2) School of Metallurgical Science and Engineering, Central South University, 410083 Changsha, China |
| |
| Abstract: | The sintering behavior of NiFe2O4-10NiO/xNi cermet which was used as the most prospective inert anode materials for aluminum electrolysis was studied by examining
the effects of raw powder particle size, sintering temperature, and the contents of Ni. The results show that fine particle
size enables the powder to have high driving force for sintering. High temperature is beneficial to densification, but the
ultra-high temperature does harm to the improvement of the density. The samples of NiFe2O4-10NiO/5Ni has the highest relative density of 97. 28% when it is sintered at 1 350 °C, but it decreases to 95. 23% when sintered
at 1 400 °C. Low addition of Ni has a great help to the sintering of NiFe2O4-10NiO matrix. When the samples are sintered at 1 350 °C and the mass fraction of Ni is 5%, the highest relative density is
gained, but the density decreases with the further increase of Ni contents. The low density of the sintered samples of NiFe2O4-10NiO/17Ni is attributed to the high volume fraction of pores.
Foundation item: Project (2005CB623703) supported by the National Key Fundamental Research and Development Program of China |
| |
| Keywords: | NiFe2O4-10NiO/xNi sintering densification inert anode |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
