期刊
CERAMICS INTERNATIONAL
卷 46, 期 7, 页码 8625-8630出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2019.12.095
关键词
Pnictide; Iron-based superconductor; IBS; Mechanical alloying; Bulk synthesis
资金
- LPI Shared Facility Center
- Russian Foundation for Basic Research (RFBR) [17-29-10036]
Here, we report the successful synthesis of electron- (Ni) and hole- (K) doped bulk BaFe2As2 compounds by means of mechanical alloying (MA) process. The MA technique allows one to obtain amorphous phase BaFe2As2 with a homogeneous distribution of doping atoms at room temperature without continuous heating. We found the optimum time for high-energy milling is in the range between 1 and 1.5 h. Using pre-synthesised FeAs and NiAs precursors, we successfully obtained BaFe2-xNixAs2 and Ba1-xKxFe2As2 superconducting bulk samples after short-range heat treatment. This method can be easily scaled according to industrial needs to provide high-quality bulk superconducting material for wires, trapped-field magnets and other applications.
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