Low temperature atmospheric synthesis of WAlB and Mn2AlB2 MAB phases by modified molten salt shielded synthesis method

Roy, Chiranjit; Mondal, Srijan; Banerjee, Pritam; Bhattacharyya, Somnath

doi:10.1016/j.apt.2023.103983

Cited by 5 publications

(2 citation statements)

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“…In addition, instead of using single salt KBr and NaCl, a KCl-NaCl eutectic salt mixture was used as the alternative shielding salt. 232 Because of its low eutectic point (657 °C), it not only protected more effectively the oxidation prone reactants from oxidation, but also enabled the completion of synthesis reactions at a lower temperature for a shorter soaking time. By using such a modified MS3 method, WAlB and Mn 2 AlB 2 phases with reasonably high purity were synthesised at about 900 and 1000 °C, respectively, for only 2 h. 232 The advantages of MS3 are obvious, including energysaving, cost reduction, and ease of scale up.…”

Section: Molten Salt Shielded Synthesismentioning

confidence: 99%

“…232 Because of its low eutectic point (657 °C), it not only protected more effectively the oxidation prone reactants from oxidation, but also enabled the completion of synthesis reactions at a lower temperature for a shorter soaking time. By using such a modified MS3 method, WAlB and Mn 2 AlB 2 phases with reasonably high purity were synthesised at about 900 and 1000 °C, respectively, for only 2 h. 232 The advantages of MS3 are obvious, including energysaving, cost reduction, and ease of scale up. However, it also suffers from some disadvantages.…”

Section: Molten Salt Shielded Synthesismentioning

confidence: 99%

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Low temperature controllable synthesis of transition metal and rare earth borides mediated by molten salt

Liu,

Jia,

Zhang

et al. 2024

International Materials Reviews

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Transition meal and rare earth borides have been subjected to extensive investigations because of their unique structures, superior properties and diverse applications. Conventional methods for their syntheses suffer from various drawbacks. So several alternative approaches have been explored. Among them, the so-called ‘molten salt synthesis (MSS)’ technique has proved promising. Over the past 10–15 years, it has been used to prepare a range of transition metal and rare earth borides. In this paper, the main results from these studies are reviewed. Initially, the relevant background on metal borides and their conventional synthesis methods are introduced, followed by the main principles/mechanisms of MSS. The following three sections provide an overview of the main work on MSS of binary and ternary borides, boride solid solutions, and boride-based composite powders. Then, two newly modified MSS approaches are presented. Finally, the main issues covered in this paper are summarised, and future prospects considered.

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Section: Molten Salt Shielded Synthesismentioning

confidence: 99%

Section: Molten Salt Shielded Synthesismentioning

confidence: 99%