The increase in miniaturization and need for greater performance in the electronics industry necessitates hybrid components. Alloys with controlled thermal expansion coefficients are able to adapt to the thermal expansion characteristics of glass or ceramics. Furthermore, Deutsche Nickel's soft-magnetic and resistance alloys fulfill the requirements for defined resistivity, permeability or coercivity.
A typical example is the light bulb and energy-saving lamp in particular. Lead-in wires connecting the lamp socket to the filament are fixed in place by melting the glass capsule. When the lamp is illuminated the generated heat means that the wire expands at the same rate as the bulb.
The metal for the lead-in wires is matched to the coefficient of thermal expansion of the glass/ceramic component. Thanks to the identical expansion characteristics of the glass/ceramic material and lead-in wire, temperature changes do not cause any fractures in the glass-to-metal seal. The vacuum within the lamp therefore remains constant.