Electrical Conductivity and Contact Phenomena in Porous Metallic Materials

摘要

The change in electrical resistance of copper fiberand powder compacts upon heating from room to be sinteringtemperature was studied. It was found that different regimes ofheating in vacuum did not affect the temperature dependence ofelectrical resistance. A relationship between electricalconductivity and the relative size of interparticle contacts wasderived for a model fiber body. This was in good agreement withdata on the tensile strength of real fiber materials.