A new device for measuring thermal conductivity and heat capacity of metallic alloys by electromagnetic levitation

Jacqueline Etay (1) , Alimata Diarra (1) , Annie Gagnoud (1) , Christian Garnier (1) , Stéphane Massucci (1) , Mazen Alamir (2) , André Sulpice (3) , Sophie Rivoirard (3)

1 SIMaP - Science et Ingénierie des Matériaux et Procédés
2 GIPSA-SYSCO - GIPSA - Systèmes non linéaires et complexité
3 CRETA - Consortium de Recherches pour l'Emergence des Technologies Avancées

Electromagnetic levitation of electrically conductive droplets by alternative magnetic fields is a technique used to measure the physical properties of liquid metallic alloys such as heat capacity and thermal diffusivity, among others. We present a modulated calorimetry technique using electromagnetic induction. This technique is tested on a solid nickel spherical sample. Experimental results are compared with literature. An attempt to deal with liquid sample is presented as prospect.

Mots clés: electromagnetic levitation; modulated calorimetry

Domaines: Sciences de l'ingénieur [physics]

Jacqueline Etay, Alimata Diarra, Annie Gagnoud, Christian Garnier, Stéphane Massucci, et al.. A new device for measuring thermal conductivity and heat capacity of metallic alloys by electromagnetic levitation. 8th International Conference on Electromagnetic Processing of Materials, Oct 2015, Cannes, France. ⟨hal-01335544⟩