Molten salt synthesis, characterization, and formation mechanism of superfine (Hf
            
              x
            
            Zr
            
              1‐
              x
            
            )B
            2
            solid‐solution powders

In this paper SrBi2Nb2O9 was prepared by molten salt synthesis method and KCl chosen as molten medium. In order to disclose possible formation mechanism of SrBi2Nb2O9, a simple route was established for comparison by dividing the starting precursors into four groups. With the help of XRD, possible synthesis route was analyzed. The results showed that pure SrBi2Nb2O9 powders could be obtained at temperature higher than 700oC by molten salt synthesis. Intense synthesis reaction happened in the temperature range from 500 to 700oC. The reaction mechanisms of SrBi2Nb2O9 included four steps, namely the formation of 1) SrBi2O4 at close to 600oC,2) BiNbO4 from the reaction of at 600-700 oC, 3) SrBi2Nb2O9 from the reaction of SrBi2O4 and Nb2O5 and 4)SrBi2Nb2O9 from the reaction of BiNbO4 and SrCO3. The molten salt could improve distribution and reactivity of the precursors and significant formation of SrBi2Nb2O9.

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Fabrication of Plate-Like Sr3Ti2O7 Particles Using Molten Salt Synthesis

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1058.15 ◽

2014 ◽

Vol 1058 ◽

pp. 15-19 ◽

Cited By ~ 2

Author(s):

Sheng Jie Yang ◽

Feng Gao ◽

Meng Jie Qin ◽

Qing Qing Zhang ◽

Xi Xi Huang

Keyword(s):

Phase Transition ◽

Particle Size ◽

Aspect Ratio ◽

Molten Salt ◽

Formation Mechanism ◽

Phase Structure ◽

Main Phase ◽

Molten Salt Synthesis ◽

Particle Size And Morphology ◽

Size And Morphology

Plate-like Sr3Ti2O7powders with anisotropy were prepared by KCl molten salt synthesis (MSS) method, the effect of different SrCO3/TiO2ratio and calcination condition on the phase transition, particle size and morphology of powders were investigated. The results show that SrTiO3phase coexist with Sr3Ti2O7phase and SrTiO3is the main phase as the SrCO3/TiO2ratio is 1.15~1.25:1. Pure Sr3Ti2O7phase can be obtained as the SrCO3/TiO2ratio is 1.55~1.65:1. The aspect ratio of plate-like particles increases firstly and then decreases as the SrCO3/TiO2ratio increases. The sealed and unsealed condition has no influence on the phase structure of the powders. But the aspect ratio of unsealed particles is smaller than that of sealed particle. Finally, the formation mechanism for Sr3Ti2O7particles was discussed.

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Molten salt synthesis, formation mechanism, and oxidation behavior of nanocrystalline HfB2 powders

Journal of Advanced Ceramics ◽

10.1007/s40145-019-0345-1 ◽

2020 ◽

Vol 9 (1) ◽

pp. 35-44 ◽

Cited By ~ 4

Author(s):

Da Liu ◽

Qiangang Fu ◽

Yanhui Chu

Keyword(s):

Molten Salt ◽

Formation Mechanism ◽

Oxidation Behavior ◽

Molten Salt Synthesis

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Structural and Magnetic Properties of (Mg 0.8 Fe 2+ 0.2 )(Al 0.4 Cr x Fe 3+ 1.6− x )O 4 Spinel Solid Solution Obtained by Molten Salt Synthesis

physica status solidi (a) ◽

10.1002/pssa.202000518 ◽

2021 ◽

pp. 2000518

Author(s):

Xingrong Wu ◽

Tiantian Pan ◽

Xingmei Shen ◽

Fabin Cao ◽

Zhaojin Wu

Keyword(s):

Solid Solution ◽

Magnetic Properties ◽

Molten Salt ◽

Molten Salt Synthesis ◽

Spinel Solid Solution ◽

Structural And Magnetic Properties

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Molten-salt synthesis and composition-dependent luminescent properties of barium tungsto-molybdate-based solid solution phosphors

Chinese Physics B ◽

10.1088/1674-1056/25/2/027802 ◽

2016 ◽

Vol 25 (2) ◽

pp. 027802

Author(s):

Xiang-Hong He ◽

Zhao-Lian Ye ◽

Ming-Yun Guan ◽

Ning Lian ◽

Jian-Hua Sun

Keyword(s):

Solid Solution ◽

Molten Salt ◽

Luminescent Properties ◽

Molten Salt Synthesis

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Molten Salt Synthesis and Formation Mechanism of Plate-Like MgAl2O4 Spinel

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.281.278 ◽

2018 ◽

Vol 281 ◽

pp. 278-284

Author(s):

Xiao Long Hou ◽

Jun Tong Huang ◽

Zhi Hui Hu ◽

Zhi Jun Feng ◽

Meng Zhang ◽

...

Keyword(s):

Molten Salt ◽

Formation Mechanism ◽

Growth Mechanism ◽

Molten Salts ◽

Raw Materials ◽

Molten Salt Synthesis ◽

Product Phase ◽

Octahedral Structure ◽

Precipitation Mechanism ◽

Magnesium Aluminum Spinel

Plate-like Magnesium Aluminum spinel (MgAl2O4) with octahedral structure was synthesized using Al2O3plate-like particles and MgO powders as raw materials in the molten salt of LiCl, KCl or NaCl, respectively. The Results indicated that the molten salts accelerated MA formation, and LiCl was more effective than KCl and NaCl, which may be attributed to the higher solubility of MgO in the former than in the latter two. The outline shape of MA spinel product phase was the same as that of original plate-like Al2O3particles. The growth mechanism of plate-like MgAl2O4spinel particles with octahedral structure should be governed by “template formation mechanism” accompanied with “dissolution-precipitation mechanism”.

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