TY  - JOUR
AU  - Dash, Apurv
AU  - Vaßen, Robert
AU  - Guillon, Olivier
AU  - Gonzalez-Julian, Jesus
TI  - Molten salt shielded synthesis of oxidation prone materials in air
JO  - Nature materials
VL  - 18
IS  - 5
SN  - 1476-4660
CY  - Basingstoke
PB  - Nature Publishing Group
M1  - FZJ-2019-02979
SP  - 465 - 470
PY  - 2019
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - pmid:30936480
UR  - <Go to ISI:>//WOS:000465199900017
DO  - DOI:10.1038/s41563-019-0328-1
UR  - https://juser.fz-juelich.de/record/862737
ER  -