
352 CHAPTER 14 Metal oxide nanopowder
Table 14.4 Scientific Use and Properties of Metal Oxide Nanopowder
Applications Materials Properties
Packaging/IC substrate Al
2
O
3
, BeO High insulation, high thermal
conductivity, low permittivity
Capacitors BaTiO
3
, rare earth oxide High permittivity, low
dielectric loss, controllable
coefficients of thermal
expansion, high breakdown
voltages
Piezoelectric transducers
and surface acoustic
wave devices
PbZrO
3
, PbTiO
3
, BaTiO
3
,
LiNbO
3
High piezoelectric
coefficients, high coupling
coefficients
Thermistors BaTiO
3
Change of resistance with
temperature
Varistors ZnO Change of resistivity with
applied field
Pyroelectric detector ...