Fabrication and characterization of ternary La
            1‐
            
              x
              C
            
            e
            
              x
            
            B
            6
            by a novel molten salt synthesis route

The fabrication of a ceramic coating on the metallic substrate is usually applied to achieve the improved performance of the material. Plasma electrolytic oxidation (PEO) is one of the most promising methods to reach this performance, mostly wear and corrosion resistance. Traditional PEO is carried out in an aqueous electrolyte. However, the current work showed the fabrication and characterization of a ceramic coating using PEO in molten salt which was used to avoid disadvantages in system heating-up and the formation of undesired elements in the coating. Aluminum 7075 alloy was subjected to the surface treatment using PEO in molten nitrate salt. Various current frequencies were applied in the process. Coating investigations revealed its surface porous structure and the presence of two oxide layers, α-Al2O3 and γ-Al2O3. Microhardness measurements and chemical and phase examinations confirmed these results. Potentiodynamic polarization tests and electrochemical impedance spectroscopy revealed the greater corrosion resistance for the coated alloy. Moreover, the corrosion resistance was increased with the current frequency of the PEO process.

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Characterization of ternary (Na0.5K0.5)1−x Li x NbO3 lead-free piezoelectric ceramics prepared by molten salt synthesis method

Journal of Materials Science ◽

10.1007/s10853-011-5583-8 ◽

2011 ◽

Vol 46 (19) ◽

pp. 6364-6370 ◽

Cited By ~ 4

Author(s):

Li Jianhua

Keyword(s):

Molten Salt ◽

Synthesis Method ◽

Piezoelectric Ceramics ◽

Lead Free ◽

Molten Salt Synthesis

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ChemInform Abstract: Molten Salt Synthesis and Structural Characterization of Novel Salt-Inclusion Vanadium Bronze Cs5FeV5O13Cl6.

ChemInform ◽

10.1002/chin.201032023 ◽

2010 ◽

Vol 41 (32) ◽

pp. no-no

Author(s):

Parisa Mahjoor ◽

Susan E. Latturner

Keyword(s):

Molten Salt ◽

Structural Characterization ◽

Molten Salt Synthesis

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Synthesis and Characterization of Calcium Titanate and Calcium Zirconate Compound Powders by Molten Salt Method

Nano Hybrids and Composites ◽

10.4028/www.scientific.net/nhc.17.88 ◽

2017 ◽

Vol 17 ◽

pp. 88-95 ◽

Cited By ~ 1

Author(s):

L. John Bercmans ◽

T. Sornakumar ◽

A. Harish Kumar ◽

G. Siva ◽

G. Venkatesh

Keyword(s):

Molten Salt ◽

Binary Systems ◽

Pulse Discharge ◽

Dielectric Materials ◽

Calcium Titanate ◽

Single Step ◽

Molten Salt Synthesis ◽

Molten Salt Method ◽

Calcium Zirconate

Alkaline earth titanates and zirconates and their binary systems are of interest for their temperature in sensitive dielectric properties. Calcium titanate and calcium zirconate perovskite ceramics find applications in pulse discharge, energy storage and microwave capacitors. These dielectric materials have been used in electric hybrid and fuel cell vehicles. In the present work, fine crystalline compound powders of calcium titanate and calcium zirconate were prepared by a single step molten salt synthesis. Calcium oxide and titanium dioxide/zirconium oxide were used as precursors to obtain the calcium titanate and calcium zirconate compound powders respectively. The prepared calcium titanate and calcium zirconate compound powders were characterized by TGA, FTIR, XRD, SEM and EDS analysis.

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Formation Mechanism of SrBi2Nb2O9 Prepared by Melting Salt Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.177.12 ◽

2010 ◽

Vol 177 ◽

pp. 12-15

Author(s):

Bao Rang Li ◽

Xing Tao Liu ◽

Yang Sheng Zheng ◽

Hui Bin Chang

Keyword(s):

Molten Salt ◽

Formation Mechanism ◽

Reaction Mechanisms ◽

Synthesis Method ◽

Molten Salt Synthesis ◽

Synthesis Reaction ◽

Simple Route ◽

Temperature Range ◽

Synthesis Route ◽

Molten Medium

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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