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Effect of Sintering Temperature on the Texturing Behavior of NaCo2O4-delta Synthesized by Urea Auto-Combustion Method
Zhang, Yue1,2; Wei, Wei1,2; Liu, Yong1,2; Zhu, Benpeng1,2; Huang, Ping1,2; Wang, Ziyu1,2; Zhou, Zhongpo1,2; Tang, Wufeng1,2; Shi, Jing1,2,3; Xiong, Rui1,2
Corresponding AuthorXiong, Rui(xiongrui@whu.edu.cn)
2009-11-01
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume25Issue:6Pages:742-744
AbstractPolycrystalline NaCo2O4-delta materials were prepared using the urea auto-combustion method. The reaction process and crystal growth were investigated through X-ray diffraction (XRD), thermogravimetry-differential thermal analysis (TG-DTA), and Fourier transform infrared spectrometry (FTIR). The results indicate that the formation temperature of NaCo2O4-delta is about 620 degrees C, which is lower than that for solid-state reaction. XRD results show that the texturing along c-axis occurred as the powders calcined at 700 degrees C were pressed into pellets with subsequently sintering, and the degree of such texturing increases with increasing sintering temperature. Surface morphologies by scanning electron microscopy (SEM) also indicate that the texturing show dependence on sintering temperature. The grains on the surfaces of the pellets sintered at 750 and 850 degrees C have some growth trend along a-b planes, while the grains on the surface of the pellet sintered at 950 degrees C show an obvious growth trend toward c-axis.
KeywordCrystal growth Heat treatment Sintering Surfaces X-ray techniques
Funding OrganizationNational Natural Science Foundation of China ; National Basic Research Program of China
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[10674105] ; National Basic Research Program of China[2007CB607501]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000272784100005
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/99272
Collection中国科学院金属研究所
Corresponding AuthorXiong, Rui
Affiliation1.Wuhan Univ, Dept Phys, Minist Educ, Wuhan 430072, Peoples R China
2.Wuhan Univ, Key Lab Acoust & Photon Mat & Devices, Minist Educ, Wuhan 430072, Peoples R China
3.Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Yue,Wei, Wei,Liu, Yong,et al. Effect of Sintering Temperature on the Texturing Behavior of NaCo2O4-delta Synthesized by Urea Auto-Combustion Method[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2009,25(6):742-744.
APA Zhang, Yue.,Wei, Wei.,Liu, Yong.,Zhu, Benpeng.,Huang, Ping.,...&Xiong, Rui.(2009).Effect of Sintering Temperature on the Texturing Behavior of NaCo2O4-delta Synthesized by Urea Auto-Combustion Method.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,25(6),742-744.
MLA Zhang, Yue,et al."Effect of Sintering Temperature on the Texturing Behavior of NaCo2O4-delta Synthesized by Urea Auto-Combustion Method".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 25.6(2009):742-744.
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