Following the progress of sintering by measuring viscosity and electrical resistivity variations

O. Lame (1) , Sylvie Bourdineaud-Bordère (2) , Dominique Denux (2) , Didier Bouvard (1)

1 GPM2 - Génie physique et mécanique des matériaux
2 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

The simplest way of characterizing the advancement of sintering of a powder is to follow the variation of its relative d. However, sintering of a dense compact, obtained for example by die pressing of iron-based powders, occurs with very low d. changes, while, of course, the microstructure and the properties of the material strongly evolve. In this study, the progress of sintering is followed by a continuous measurement of two characteristics of the material throughout sintering: the elec. resistivity and the viscosity. The original techniques developed for the measurement are presented and the interest of the data obtained for the understanding and modeling of sintering is discussed.

Mots clés: Steel; Powder; Sintering; Vscosity; Electrical resistivity

Domaines: Matériaux

O. Lame, Sylvie Bourdineaud-Bordère, Dominique Denux, Didier Bouvard. Following the progress of sintering by measuring viscosity and electrical resistivity variations. Advances in powder metallurgy & particulate materials - 2002, Metal Powder Industries Federation, Jun 2002, Orlando (FL), United States. pp.4-13. ⟨hal-00817731⟩