TY - JOUR
T1 - Nanoalloying of clusters of immiscible metals and the formation of bimetallic nanoparticles in the conditions of non-synchronous explosion of two wires
AU - Pervikov, A. V.
AU - Suliz, K. V.
AU - Lerner, M. I.
PY - 2020/1/15
Y1 - 2020/1/15
N2 - The work researches the influence of metal mixing enthalpy on spontaneous nanoalloying of coagulated clusters formed when intertwined Fe/Ag, Ni/Ag, Nb/Сu and Pb/Сu wires with equiatomic composition are exploded. The analysis of temporal dependencies of currents and voltages has shown that the intervals between the successive explosions of Fe/Ag, Ni/Ag, Nb/Сu and Pb/Сu wires are 0.38, 0.26, 0.43 and 0.4 μs, respectively. This explains their asynchronous destruction. It has been found that when wires are exploded, bimetallic Janus and core-shell nanoparticles are formed. The obtained data makes it possible to conclude that when wires explode non-synchronously, clusters coagulate and atoms of metals subsequently intermix. The results of the research demonstrate that the explosion of two wires made of metals with positive mixing enthalpy (from 8 to 116 kJ/g) is a process that can be used to obtain bimetallic nanoparticles with complex structures.
AB - The work researches the influence of metal mixing enthalpy on spontaneous nanoalloying of coagulated clusters formed when intertwined Fe/Ag, Ni/Ag, Nb/Сu and Pb/Сu wires with equiatomic composition are exploded. The analysis of temporal dependencies of currents and voltages has shown that the intervals between the successive explosions of Fe/Ag, Ni/Ag, Nb/Сu and Pb/Сu wires are 0.38, 0.26, 0.43 and 0.4 μs, respectively. This explains their asynchronous destruction. It has been found that when wires are exploded, bimetallic Janus and core-shell nanoparticles are formed. The obtained data makes it possible to conclude that when wires explode non-synchronously, clusters coagulate and atoms of metals subsequently intermix. The results of the research demonstrate that the explosion of two wires made of metals with positive mixing enthalpy (from 8 to 116 kJ/g) is a process that can be used to obtain bimetallic nanoparticles with complex structures.
KW - Bimetallic nanoparticles
KW - Explosion of two wires
KW - Immiscible metals
KW - Metal mixing enthalpy
KW - Nanoalloying of clusters
UR - http://www.scopus.com/inward/record.url?scp=85075438727&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85075438727&partnerID=8YFLogxK
U2 - 10.1016/j.powtec.2019.11.003
DO - 10.1016/j.powtec.2019.11.003
M3 - Article
AN - SCOPUS:85075438727
VL - 360
SP - 855
EP - 862
JO - Powder Technology
JF - Powder Technology
SN - 0032-5910
ER -