Resistivity is commonly represented by the greek letter ρ.
Ceramic volume resistivity.
1 1 this test method covers the determination of the dc volume resistivity of a smooth preferably polished glass by measuring the resistance to passage of a small amount of direct current through the glass at a voltage high enough to assure adequate sensitivity.
Ceramic materials offer a number of benefits in a variety of applications.
Quartz and macor glass ceramics are better insulators with resistivity values of over 1 10 16.
1 10 10 and zirconia 1 10 9.
Macor dc volume resistivity macor is an outstanding engineering material and is machinable with ordinary metalworking tools.
This current must be measured under steady state conditions that is neither a charging current nor a space charge buildup.
Volume resistivity electrical properties.
Electrical resistivity also called specific electrical resistance or volume resistivity and its inverse electrical conductivity is a fundamental property of a material that quantifies how strongly it resists or conducts electric current a low resistivity indicates a material that readily allows electric current.
Silicon carbide is the least insulating ceramic with resistivity of around 1 10 6 or even less for certain forms of cvd sic.