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Molten salt synthesis of delta-CaCr2O4 and its annealing to prepare beta-CaCr2O4
Liu, Zheng-Wei1,2,3; Zhang, Hong-Ling1,2; Luo, Min-Ting1,2; Pei, Li-Li1,2; Shi, Yi-Lang4; Cai, Zai-Hua4; Xu, Hong -Bin1,2; Zhang, Yi1,2
2017
Source PublicationCERAMICS INTERNATIONAL
ISSN0272-8842
Volume43Issue:1Pages:1231-1235
Abstract

Molten salt synthesis (MSS), due to the high reactivity of salts, small diffusion distance and high mobility of species in molten salt, can not only reduce the synthesis temperature but also shorten the reaction time. Herein, MSS method was employed to synthesize delta-CaCr2O4 powder by using CaO, Cr2O3 as raw materials and CaCl2 which has a high solubility of CaO as molten salt. The influence of reaction time was investigated and 5-CaCr2O4 with platelet morphology was obtained after reaction for 2 h at 900 degrees C. Pure rod-like beta-CaCr2O4 was further prepared by simply annealing the as-synthesized delta-CaCr2O4 in argon atmosphere for 3 h at 1100 degrees C. The magnetization and its corresponding reciprocal susceptibility of delta-CaCr2O4 and beta-CaCr2O4 samples was also measured and calculated, which indicated a paramagnetic arrangement and an antiferromagnetic arrangement during the test temperature range 2-250 K, respectively.

KeywordCacr2o4 Platelet Magnetic Properties Molten Salt
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.ceramint.2016.10.069
Indexed BySCI
Language英语
WOS KeywordPowders
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
Funding OrganizationNational Basic Research Program (973 Program) of China(2013CB632600) ; National Natural Science Foundation of China(11204304 ; Project Fund of Hubei Zhenhua Chemical Co. LTD. ; 21406233)
WOS IDWOS:000390737100045
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21871
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Hubei Zhenhua Chem Co LTD, Huangshi 435001, Hubei Province, Peoples R China
Recommended Citation
GB/T 7714
Liu, Zheng-Wei,Zhang, Hong-Ling,Luo, Min-Ting,et al. Molten salt synthesis of delta-CaCr2O4 and its annealing to prepare beta-CaCr2O4[J]. CERAMICS INTERNATIONAL,2017,43(1):1231-1235.
APA Liu, Zheng-Wei.,Zhang, Hong-Ling.,Luo, Min-Ting.,Pei, Li-Li.,Shi, Yi-Lang.,...&Zhang, Yi.(2017).Molten salt synthesis of delta-CaCr2O4 and its annealing to prepare beta-CaCr2O4.CERAMICS INTERNATIONAL,43(1),1231-1235.
MLA Liu, Zheng-Wei,et al."Molten salt synthesis of delta-CaCr2O4 and its annealing to prepare beta-CaCr2O4".CERAMICS INTERNATIONAL 43.1(2017):1231-1235.
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