a type of deformation exhibiting the mechanical characteristics of
viscous flow and elastic deformation.
Viscosity (symbol is η)
The ratio of the magnitude of an applied shear stress to the
velocity gradient that it produces; in other words: a measure of a
noncrystalline material's resistance to permanent deformation.
Vitrification
During firing of a ceramic body, the formation of a liquid phase
that becomes a glass-bonding matrix upon cooling.
VLSI
Very large scale integration; a chip with 100,000 to 1,000,000
components.
Volt
Unit of electrical potential difference (see"voltage").
Voltage [V]
Potential difference between two points: energy to move a 1-C
charge through a 1-V potential difference is 1-J.
Wafer
Semiconductor disk out of which integrated circuits are made (also
see"chip","mask").
Watt (W)
Unit of power. One watt is the power that, in 1 second, gives rise
to an energy of 1 joule.
Weber
Unit of magnetic flux. One weber is a magnetic flux that, linking
a circuit of 1 turn, would produce in it an electromotive force of
1 volt if it were reduced to zero at a uniform rate in 1 second.
Weight percent (wt%)
Concentration specification on the basis of weight (or mass) of a
particular element relative to the total alloy weight (or mass).
