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Electrical Resistivity of Hot‐Pressed Compacts
Author(s) -
RAMANAN T.,
CHAKLADER A. C. D.
Publication year - 1975
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1975.tb18762.x
Subject(s) - electrical resistivity and conductivity , spheres , radius , materials science , pressing , hot pressing , relative density , composite material , nickel , deformation (meteorology) , condensed matter physics , geometry , metallurgy , microstructure , physics , mathematics , computer security , quantum mechanics , astronomy , computer science
The electrical resistivity of compacts of glass and nickel spheres has been correlated with bulk density during hot‐pressing. Conductivity, based on deformation of spheres into several geometric shapes under hot‐pressing conditions, is described by σ m /σ c =α ( D 2/3 β 2/3 R 2 — 1), where σ m and σ c are the conductivities of a compact of spheres at relative density D and theoretical density ( D = 1), respectively; α and β are constants depending on geometry; and R is the radius of the deformed sphere.