Stress analysis of the field-assisted sintering: Electrothermal mechanical interaction

Article type: Research Article

Authors: Yang, Fuqian^{a; *} | An, Linan^b

Affiliations: [a] Department of Chemical and Materials Engineering, University of Kentucky, Lexington, KY, USA | [b] Advanced Materials Processing and Analysis Center, University of Central Florida, Orlando, FL, USA

Correspondence: [*] Corresponding author. Tel.: +1 859 2572994; Fax: +1 859 323 1929; E-mail: fyang0@engr.uky.edu

Abstract: The field-assisted sintering techniques have the potential to produce bulk nanostructured materials from micron and submicron particles. Using the perturbation theory, the electrothermal, elastic deformation of a consolidated material has been analyzed. The material carries a uniform, axial electric current. Explicit expression of the temperature and stress fields has been obtained to the first order of approximation. The maximum temperature difference is proportional to the electric energy input to the material, and the average pressure applied to the pressing die is a nonlinear function of the electric current.

DOI: 10.3233/JAE-2010-1068

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 32, no. 3, pp. 125-132, 2010