1) Synthesis and characterization of oxide@Ag particles that are simultaneously magnetic and conductive 2) Elaboration of composites: dispersion of particles in organic matrix: silicone (PDMS) or thermoplastic (ethylcellulose + wax) 3) Screen printing of composite paste on alumina substrate 4) Curing under controllable and orientable magnetic field Composite materials with a thermoplastic matrix may be re-melted an aligned again.