PACS. 02.75.50.Lk – Spin glasses and other random magnets. PACS. 03.75.10.Nr – Spin-glass and other random models. Abstract. – We compare aging in a disordered ferromagnet and in a spin glass, by studying the different phases of a reentrant system. We have measured the relaxation of the low-frequency ac susceptibility χ, in both the ferromagnetic and spin-glass phases of a CdCr1.9In0.1S4 sample...

This paper presents an investigation of non-stationary induction heating process applied to AISI 4340 steel spline shafts based on 3D simulation and experimental validation. The study is based on the knowledge, concerning the form of correlations between various induction heating parameters and the final hardness profile, developed in the case of stationary induction heating. The proposed appro...

This paper presents a study on an induction planar actuator concept. The device uses the same principles as a linear induction motor in which the interaction between a travelling magnetic field and a conducting surface produces eddy currents that leads to the generation of a thrust force and can result in movement over a metallic surface. This can benefit the inspection of metallic surfaces bas...

Heating induction is a new environmentally friendly, energy-saving technology that offers more effective performance than other common heaters. The energy-use efficiency of an inductor circuit greater 80 percent, while biomass tank and tungsten coil have 70 percent 51.8 efficiency, respectively. This method also produces heat any forms heating using gas or coal. has attracted significant intere...

Abstract Advanced automotive industries generate large demand for the next generation of high strength and toughness spring steels. Vanadium-containing 55SiCrV steels subjected to rapid-induction heating treatment can fulfil such requirements. However, effect vanadium microalloying under online heat treatments is rarely reported. A comparative study microstructure tensile properties 55SiCr stee...

This thesis describes an efficient numerical simulation technique of magnetoquasistatic electromagnetic fields for planar induction heating applications. The technique is based on a volume-element discretization, integral formulation of Maxwell’s equations, and uses the multilayer Green’s function to avoid volumetric meshing of the heated material. The technique demonstrates two orders of magni...