Nanojoint formation between ceramic titanate nanowires and spot melting of metal nanowires with electron beam

摘要: Construction of nanoarchitectures requires techniques like joint formation and trimming. For ceramic materials, however, it is extremely difficult to form nanojoints by conventional methods merging. In this work, we demonstrate that titanate nanowires (NWs) can be joined spot melting under electron beam (e-beam) irradiation (EBI). The fuses the contacted NWs yielding an intact nanojoint. Nanojoints with different morphologies produced. structures consist titanium dioxide (TiO2) rutile, anatase, phases in direction away from e-beam spot. binds anatase via a crystallographic matching coherent interface (the oxygen atoms at are shared two phases) solidly rutile joint. resulting stable high temperatures. Additionally, demonstrated heat production EBI treated utilized break metal (Ag, Cu, Ni) apart melting. required intensity considerably mild (75 pA/cm2) which allows visual access control over NW Direct Ag Cu not applicable due their thermal conductivity even current density (500 pA/cm2). Our findings reveal nanojoint nanoscale if properties nanomaterials understood properly utilized.