Porosity effect on the electrical conductivity of sintered powder compacts |
| |
| Authors: | JM Montes FG Cuevas J Cintas |
| |
| Institution: | (1) Department of Mechanical and Materials Engineering, Escuela Superior de Ingenieros, Universidad de Sevilla, Camino de los Descubrimientos, s/n, 41092 Sevilla, Spain |
| |
| Abstract: | A new equation for calculating the electrical conductivity of sintered powder compacts is proposed. In this equation, the
effective resistivity of porous compacts is a function of the fully dense material conductivity, the porosity of the compact
and the tap porosity of the starting powder. The new equation is applicable to powder sintered compacts from zero porosity
to tap porosity. A connection between this equation and the percolation conduction theory is stated. The proposed equation
has been experimentally validated with sintered compacts of six different metallic powders. Results confirm very good agreement
with theoretical predictions.
PACS 72.15.Eb; 72.90.+y; 81.05.Rm; 81.20.Ev |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
