Materials were the perenial sagas of the electronic industry. In
the beginning amateurs and researchers used the available materiais
either from organic origin: wood, natural resins, cellulose compounds;
as well as metallic based: iron, brass, bronze, copper and so forth.
Therefore, the mass production in the electronic industry drove
the research for new type of materials derivative from advanced
technology. Among them are: metals alloys, ceramics and, mainly
the plastic as per illustrated in table 2.
Table 2 – MATERIALS AND THEIR APPLICATIONS
IN THE ELECTRONIC INDUSTRY |
ORIGIN |
COMPOSITION/ALLOY |
APPLICATION |
TRADE NAME |
OBS. |
|
|
|
|
|
Cellulose derivatives |
Cellulose nitrate |
Dials |
Celluloid |
|
Cellulose acetate |
Dials, insulation, Recording discs |
Fibesto, Plasticele |
|
Synthetic resins |
Phenol-Formaldehyde |
Cabinets, dials,plugs, Panels, insulation,
Special parts
|
Baquelita, Durez Micarta, Fórmica Catalin |
Molded
Laminated
Cast
|
Urea-Formaldehyde |
Gabinetes, dial, knob, etc |
Plaskon |
|
|
|
|
|
|
Natural Resins |
Petroleum derivatives |
Impregnating materials, battery cases |
Cetec Thermoplax |
|
Pitch, Asphalt |
|
|
|
|
|
|
|
|
Metal Alloys |
Iron-Nickel-Cobalt |
Valves metal/glass sealing |
Kovar |
|
Iron-Aluminium, Nickel-Cobalt |
Loudspeakers, magnet core |
Alnico |
|
Nickel-iron |
Core for radio circuits |
Permalloy |
|
Iron-Magnesium |
High frequency core material |
Magicore |
Bound with ceramics |
Me= Iron Oxide |
|
Ferroxcube |
Me= bivalent elements: Manganese,
Magnesium, Copper, Zinc
|
|
|
|
|
|
Ceramics |
Hydrated Magnesium silicate
|
Insulators, parts for high frequency |
Alsimag |
Group of material derivative of Steatite |
Hydrated Magnesium silicate |
Insulators |
Kersima |
|
Aluminium-Silicon Oxide |
Insulators, Sockets |
Porcelain |
|
The improvement in materials researches, advanced manufacturing process
as well as new circuit topologies gave birth of the industrial design.
|