CAS OpenIR
Thermodynamic Prediction and Synthesis of a Titanium Diboride Powder by Reduction of Titanium Dioxide with Boron Carbide in Argon Atmosphere
Shah, Liaqat Ali
2021-10-08
Source PublicationARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
ISSN2193-567X
Pages8
AbstractAn extreme case reaction, the formation of fine titanium diboride (TiB2) powder by the reduction of titanium oxide (TiO2) with boron carbide (B4C) (molar ratio of B4C/TiO2 = 0.714 without carbon black (C)) in the Argon atmosphere, was confirmed through both thermodynamical calculation and experimental results. Because the intermediate product boron-oxide (B2O3) produced in the extreme case reaction and those of general boro/carbothermal reaction (i.e., molar ratio B4C/TiO2 = 0.5 with 1.5 molar of C) and intermediate reaction (molar ratio of B4C/TiO2 = 0.833 without C) was volatile, excess boron (B) should be added, as in the extreme case reaction, to compensate for the B loss in order to prepare high-purity TiB2 powder. The experimental results and the reaction mechanism indicate that the formation of TiB2 powder occurs in the following steps: Firstly, the TiO2 reduced to titanium carbide (TiC), titanium borate (TiBO3), B2O3, C and TiB2. Secondly, the by-product C and B2O3 reacted together to form B4C at temperature as high as 1562 degrees C. Finally, the by-product TiC, TiBO3 and B4C reacted together to complete the TiB2 formation reaction. The sole suitable situation for obtaining purified fine TiB2 powder was the extreme case reaction. Experiments indicated that the optimum synthesis temperature and firing time for the extreme case reaction were about 1580 degrees C and 1 h, respectively. The morphology of the TiB2 powder that was synthesized resembled a hexagonal shape.
KeywordParticle size Surface area Titanium diboride Borocarbide Hard ceramics
DOI10.1007/s13369-021-06213-2
Language英语
WOS KeywordB4C-TIB2 COMPOSITE POWDERS ; TEMPERATURE SYNTHESIS ; TIB2 POWDER ; TIO2
Funding ProjectChinese Academy of Sciences under the President's International Support Initiative (PIFI)[2017PE0006]
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
Funding OrganizationChinese Academy of Sciences under the President's International Support Initiative (PIFI)
WOS IDWOS:000705767000004
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/50451
Collection中国科学院过程工程研究所
Corresponding AuthorShah, Liaqat Ali
AffiliationChinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Shah, Liaqat Ali. Thermodynamic Prediction and Synthesis of a Titanium Diboride Powder by Reduction of Titanium Dioxide with Boron Carbide in Argon Atmosphere[J]. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING,2021:8.
APA Shah, Liaqat Ali.(2021).Thermodynamic Prediction and Synthesis of a Titanium Diboride Powder by Reduction of Titanium Dioxide with Boron Carbide in Argon Atmosphere.ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING,8.
MLA Shah, Liaqat Ali."Thermodynamic Prediction and Synthesis of a Titanium Diboride Powder by Reduction of Titanium Dioxide with Boron Carbide in Argon Atmosphere".ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING (2021):8.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Shah, Liaqat Ali]'s Articles
Baidu academic
Similar articles in Baidu academic
[Shah, Liaqat Ali]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Shah, Liaqat Ali]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.