This title appears in the Scientific Report :
2019
Please use the identifier:
http://dx.doi.org/10.1038/s41563-019-0328-1 in citations.
Molten salt shielded synthesis of oxidation prone materials in air
Molten salt shielded synthesis of oxidation prone materials in air
To prevent spontaneous oxidation during the high-temperature synthesis of non-oxide ceramics, an inert atmosphere is conventionally required1,2. This, however, results in high energy demand and high production costs. Here, we present a process for the synthesis and consolidation of oxidation-prone m...
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Personal Name(s): | Dash, Apurv (Corresponding author) |
---|---|
Vaßen, Robert / Guillon, Olivier / Gonzalez-Julian, Jesus | |
Contributing Institute: |
Werkstoffsynthese und Herstellungsverfahren; IEK-1 JARA-ENERGY; JARA-ENERGY |
Published in: | Nature materials, 18 (2019) 5, S. 465 - 470 |
Imprint: |
Basingstoke
Nature Publishing Group
2019
|
DOI: |
10.1038/s41563-019-0328-1 |
PubMed ID: |
30936480 |
Document Type: |
Journal Article |
Research Program: |
Methods and Concepts for Material Development |
Publikationsportal JuSER |
To prevent spontaneous oxidation during the high-temperature synthesis of non-oxide ceramics, an inert atmosphere is conventionally required1,2. This, however, results in high energy demand and high production costs. Here, we present a process for the synthesis and consolidation of oxidation-prone materials, the ‘molten salt shielded synthesis/sintering’ process (MS3), which uses molten salts as a reaction medium and also to protect the ceramic powders from oxidation during high-temperature processing in air. Synthesis temperatures are also reduced, and the final product is a highly pure, fine and loose powder that does not require additional milling steps. MS3 has been used for the synthesis of different ternary transition metal compounds (MAX phases, such as Ti3SiC23, Ti2AlN4, MoAlB5), binary carbides (TiC) and for the sintering of titanium. The availability of high-quality powders, combined with energy and cost savings, may remove one of the bottlenecks for the industrial application of these materials. |