Article
Chemistry, Inorganic & Nuclear
Handong Jiao, Mengjun Liu, Yang Gao, Jianxun Song, Shuqiang Jiao
Summary: The study used in situ X-ray computer microtomography to investigate the electrolysis process of titanium and revealed the differences between pulse electrolysis and direct-current electrolysis through numerical simulation. The results showed that pulse electrolysis has better current efficiency and deposition effect, which is significant for improving the electrolysis efficiency of titanium.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Review
Electrochemistry
Mengjun Liu, Handong Jiao, Rui Yuan, Manpeng Lin, Linlin Wang, Ruiyang Sun, Leyang Li, Shuqiang Jiao
Summary: This review discusses the application of pulse technology in high temperature molten salt electrochemistry and analyzes the influence of key factors and their internal mechanisms. Furthermore, it provides a perspective on the challenges and future directions of pulse electrolysis in this field.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Electrochemistry
Nan Ji, Feng Jiang, Hao Peng, Hao Chen, Wei Huang, Yu Gong
Summary: In this study, the electrochemical behavior of MoO3 in the CaCl2-NaCl melt was investigated using various electrochemical techniques, revealing that MoO3 can be transformed into intermediate compounds and finally reduced to metallic Mo through electrolytic reduction.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Fernanda Signor, Jonas Felipe Pereira, Fabricio Luiz Faita, Martin Bram, Natalia de Freitas Daudt
Summary: Ti-Nb alloys have attracted attention for biomedical implants due to their low elastic modulus and high biocompatibility. Thermal treatment is crucial for optimizing their mechanical properties and microstructure. The use of molten salt as a protective atmosphere during solution heat treatment was proposed to avoid oxidation of Ti alloys. After treatment, a martensitic microstructure was achieved, which decreased the elastic modulus to approximately 35 GPa, beneficial for bone implant applications.
Article
Materials Science, Ceramics
Mingge Yan, Qingming Xiong, Juntong Huang, Xifeng Hou, Lei Zhang, Xibao Li, Zhijun Feng
Summary: The study investigated the influence of carbon-template-growth mechanism on the synthesis of titanium carbide, showing that the visual morphologies of the TiC products mainly retained the shapes of the original carbon sources, confirming the control role of the carbon-template-growth mechanism in TiC formation.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Sivan Sela, Konstantin Borodianskiy
Summary: Zirconium alloys are bioinert materials widely used in biomedical applications, and increasing their bonding with human tissues is a major research focus. This study presents a promising approach of plasma electrolytic oxidation (PEO) surface treatment in molten salt. PEO creates a highly adhesive surface to the bioenvironment, and processing in molten salt electrolyte reduces impurities on the surface. The synthesized ZrO2 coatings showed improved biocompatibility, microhardness performance, and corrosion resistance.
SURFACES AND INTERFACES
(2023)
Article
Electrochemistry
Haoyu Huang, Na Li, Zeng Chen, Zhengyu Ren, Rui Zhang, Meiyue Liu, Putao Zhang, Shengjun Li
Summary: Pure Al-Ni alloy phases (AlNi3, AlNi, Al3Ni2) were successfully prepared by electro-deoxidation in CaCl2-NaCl molten salt, which is a more efficient method compared to traditional methods. It was found that the loss of Al in the electro-deoxidation process was mainly due to the loss of Al2O3 in the molten salt, and this loss could be delayed by increasing the precursor's sintering temperature and the molten salt temperature.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Electrochemistry
Ying Xu, Guoli Zhao, Yanqing Cai
Summary: Calcium titanate was used as a precursor to prepare titanium metal through electro-deoxidation in molten salt, and the reduction mechanism from CaTiO3 to titanium was analyzed. The research established a deoxidation model for CaTiO3 in CaCl2-NaCl molten salt.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Namhun Kwon, Jong-Soo Byeon, Hyun Chul Kim, Sung Gue Heo, Soong Ju Oh, Sang-hoon Choi, Seok-Jun Seo, Kyoung-Tae Park
Summary: The study focused on deoxidizing Ti scrap through electrolytic refining and chemical reaction with MgCl2 molten salt electrolysis, resulting in an optimized process for reducing oxygen concentration. By controlling conditions and parameters, a more efficient deoxidation was achieved.
Article
Materials Science, Multidisciplinary
M. Coffigniez, L. Gremillard, M. Perez, S. Simon, C. Rigollet, E. Bonjour, P. Jame, X. Boulnat
Summary: Through a core-shell approach, the diffusion of carbon and oxygen from the binder into the metallic powders was modeled and evaluated. Results indicate that diffusion/precipitation phenomena during non-isothermal treatments may lead to a saturated solid solution or the precipitation of titanium carbides. Mechanical behavior of 3D printed filaments was quantified by bending tests, showing a transition from brittle to ductile fracture depending on debinding parameters.
Article
Energy & Fuels
Hua Tang, Hongyun Hu, Aijun Li, Baojun Yi, Xian Li, Dingding Yao, Hong Yao, Haoran Yuan
Summary: The innovative molten salt thermal treatment was proposed to remove impurities from waste tire pyrolytic char, with the highest removal rate achieved at 400 degrees Celsius. This method effectively removed over 80% of ash and 70% of sulfur, achieving a char recovery rate between 71% and 83%.
Article
Electrochemistry
Touraj Ghaznavi, Suraj Y. Persaud, Roger C. Newman
Summary: The mechanism of molten salt corrosion of Ni- and Fe-based model alloys at different temperatures relevant to molten salt nuclear reactors has been studied. It was found that Fe and Cr alloy elements separate in molten chloride salts, which depends on temperature. At lower temperatures, the corrosion mechanism is similar to aqueous systems, while at higher temperatures, grain boundary corrosion becomes prevalent and lattice diffusion plays an important role. When the temperature exceeds 600 degrees C, the crystal orientation of the corroded material is no longer the same as its parent grain, and the corrosion becomes more one-dimensional.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Electrochemistry
Omar Awayssa, Gudrun Saevarsdottir, Rauan Meirbekova, Geir Martin Haarberg
Summary: This study reports the direct production of an aluminium-titanium alloy during aluminium electrolysis in fluoride-based melts. The current efficiency for electrodeposition of Al-Ti alloys was estimated to be at least around 90%. The titanium content was up to 1.0 wt%.
ELECTROCHEMISTRY COMMUNICATIONS
(2021)
Article
Electrochemistry
Yanli Wang, Rongfa Sun, Lingxu Yang, Huijun Liu, Chaoliu Zeng
Summary: This paper investigates the electrochemical behavior of Zr(IV) and Y(III) in NaCl-KCl-K2ZrF6-YCl3 molten salts and successfully prepares Zr-Y alloy coating using molten salt electrodeposition method.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Touraj Ghaznavi, Mariusz A. Bryk, Suraj Y. Persaud, Roger C. Newman
Summary: This study investigates the dealloying phenomenon of Fe-(Cr)-Ni model alloys in molten chloride salts that simulate the heat-transfer circuits of molten salt nuclear reactors. Classical dealloying with porosity formation is observed as the dominant form of corrosion at low temperatures. Additionally, the increased surface diffusivity of the more-noble element, Ni, in molten chloride salts decreases the critical parting limit for dealloying.
