Defect Study of MgO-CaO Material Doped with CeO2
Joint Authors
Zhao, Huizhong
Chen, Jinfeng
Yu, Jun
Nie, Jianhua
Zhang, Han
Li, Jingjie
Source
Advances in Materials Science and Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-09-16
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
MgO-CaO refractories were prepared using analytical reagent chemicals of Ca(OH)2 and Mg(OH)2 as starting materials and CeO2 as dopant, then sintered at 1650°C for 3 h.
The effect of CeO2 powders on the defect of MgO-CaO refractories was investigated.
The sample characterizations were analyzed by the techniques of XRD and SEM.
According to the results, with the addition of CeO2, the lattice constant of CaO increased, and the bulk density of the samples increased while apparent porosity decreased.
The densification of MgO-CaO refractories was promoted obviously.
In the sintering process, MgO grains grew faster than CaO, pores at the MgO-CaO grain boundaries decreased while pores in the MgO grains increased gradually, and no pores were observed in the CaO grains.
The nature of the CeO2 promoting densification lies in the substitution and solution with CaO.
Ce4+ approaches into CaO lattices, which enlarges the vacancy concentration of Ca2+ and accelerates the diffusion of Ca2+.
American Psychological Association (APA)
Zhang, Han& Zhao, Huizhong& Chen, Jinfeng& Li, Jingjie& Yu, Jun& Nie, Jianhua. 2013. Defect Study of MgO-CaO Material Doped with CeO2. Advances in Materials Science and Engineering،Vol. 2013, no. 2013, pp.1-5.
https://search.emarefa.net/detail/BIM-489430
Modern Language Association (MLA)
Zhang, Han…[et al.]. Defect Study of MgO-CaO Material Doped with CeO2. Advances in Materials Science and Engineering No. 2013 (2013), pp.1-5.
https://search.emarefa.net/detail/BIM-489430
American Medical Association (AMA)
Zhang, Han& Zhao, Huizhong& Chen, Jinfeng& Li, Jingjie& Yu, Jun& Nie, Jianhua. Defect Study of MgO-CaO Material Doped with CeO2. Advances in Materials Science and Engineering. 2013. Vol. 2013, no. 2013, pp.1-5.
https://search.emarefa.net/detail/BIM-489430
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-489430