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| Thermodynamic Destabilization of Ti-O Solid Solution by H-2 and Deoxygenation of Ti Using Mg | |
| Zhang, Ying1,2; Fang, Zhigang Zak1; Sun, Pei1; Zhang, Tuoyang1; Xia, Yang1; Zhou, Chengshang1; Huang, Zhe1 | |
| 2016-06-08 | |
| Source Publication | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
 |
| ISSN | 0002-7863 |
| Volume | 138Issue:22Pages:6916-6919 |
| Abstract | Reactive metals including Ti, Zr, Hf, and V, among others, have a strong chemical affinity to oxygen, which makes them difficult to produce and costly to use. It is especially challenging to produce pure or metal alloy powders of these elements when "extremely low oxygen content is required, because they have high solubility for oxygen, and the solid solution of these metals with oxygen is often more stable thermodynamically than their oxides. We report a navel thermochemical approach to destabilize Ti(O) solid solutions using hydrogen, thus enabling deoxygenation of Ti powder using Mg, which has not been possible before because of the thermodynamic stability of Ti(O) solid solutions relative to MgO. The :work on Ti serves as an example for other reactive metals. Both analytical modeling and experimental results show that hydrogen can indeed increase the oxygen potential of Ti-O solid solution alloys; in other words, the stability of Ti-O solid solutions is effectively decreased, thus increasing the thermodynamic driving force for Mg to react with oxygen in Ti. Because hydrogen can be easily removed from Ti by a simple heat treatment, it is used only as a temporary alloying element to destabilize the Ti-O systems. The thermodynamic approach described here is a breakthrough and is applicable to a range of different materials. This work is expected to provide an enabling solution to overcome one of the key scientific and technological hurdles to the additive manufacturing of metals, which is emerging rapidly as the future of the manufacturing industry. |
| Subtype | Article |
| WOS Headings | Science & Technology ; Physical Sciences |
| DOI | 10.1021/jacs.6b00845 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | HYDROGEN SOLUBILITY ; TITANIUM-DIOXIDE ; CHEMICAL PATHWAY ; REDUCTION ; OXYGEN ; CALCIUM ; ALLOYS ; VANADIUM ; METAL |
| WOS Research Area | Chemistry |
| WOS Subject | Chemistry, Multidisciplinary |
| Funding Organization | Advanced Research Projects Agency - Energy (ARPA-E) of the US Department of Energy (DOE)(DE-AR0000420) |
| WOS ID | WOS:000377643300003 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/21146 |
| Collection | 研究所（批量导入） |
| Affiliation | 1.Univ Utah, Dept Met Engn, Salt Lake City, UT 84112 USA 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Ying,Fang, Zhigang Zak,Sun, Pei,et al. Thermodynamic Destabilization of Ti-O Solid Solution by H-2 and Deoxygenation of Ti Using Mg[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2016,138(22):6916-6919. |
| APA | Zhang, Ying.,Fang, Zhigang Zak.,Sun, Pei.,Zhang, Tuoyang.,Xia, Yang.,...&Huang, Zhe.(2016).Thermodynamic Destabilization of Ti-O Solid Solution by H-2 and Deoxygenation of Ti Using Mg.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,138(22),6916-6919. |
| MLA | Zhang, Ying,et al."Thermodynamic Destabilization of Ti-O Solid Solution by H-2 and Deoxygenation of Ti Using Mg".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 138.22(2016):6916-6919. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Thermodynamic Destab（1875KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | Application Full Text | |
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