NETIC® is uniquely different from Co-NETIC®. It is an iron alloy that is often applied in fields of high intensity (strong fields) because of its high magnetic saturation characteristics. Frequently, NETIC® is used in conjunction with a layer of Co-NETIC® as layering is proven to provide extra precaution and/or lower risk of electro-magnetic interference. If used in combination, the NETIC® layer is placed closest to the source of interference, with Co-NETIC® or MuMETAL® layer closest to the component being shielded.
Co-NETIC® Or NETIC®?
In fields of low intensity, Co-NETIC® is used in order to utilize its high initial permeability and corresponding high attenuation characteristics. In strong fields of high intensity, NETIC® is preferred because of its high magnetic saturation characteristics. In some applications, combinations of the two materials may be useful, with NETIC® material always placed closer to the source of magnetic interference.
Co-NETIC® is considered far superior in shielding performance due to its consistent quality, material composition and Perfection Annealing process. A Ferromagnetic that is used primarily in low intensity fields where high attenuation is desired (high initial permeability & high shielding efficiency), it has become our leading brand. Co-NETIC® alloy is readily available from stock in three forms:
Co-NETIC® AA Perfection Annealed
Co-NETIC® Stress Annealed
Co-NETIC® B Stress Annealed
Like Niobium, Tantalum is a heat-tolerant refractory metal with excellent corrosion resistance. Often alloyed with other metals, tantalum is used to make super alloys used in chemical processing, jet engines and nuclear reactors. Its oxidation properties also make it an excellent choice for many electronic applications, including electrolytic capacitors and high-power resistors. Tantalum is also highly bio-compatible and used extensively for medical applications, such as skull plates, hip joints, suture clips and stents.
Tungsten has the highest melting point of all metals and, at temperatures greater than 1650°C, the highest tensile strength. Its thermal expansion rate is similar to that of borosilicate glass and silicon. Tungsten’s good thermal and electrical conductivity make it an excellent choice for microprocessor applications. It is also used in electron emitters, heater coils, cathode ray tubes, electrical contacts and a variety of high-heat applications.
Used with Alumel® in type K thermocouples and with Constantan in type E thermocouples, Chromel® is made of nickel and chromium.
With an extremely low coefficient of thermal expansion, approximately one-tenth that of carbon steel at temperatures up to 400° F, Invar® is often thought of as the material of choice for low expansion nickel alloy applications. The ability to maintain strength at very low temperatures also makes it the optimum choice for containing some liquid gasses.
Alloy 52 is a nickel-iron alloy with a thermal expansion rate similar to soft glasses and ceramics. Typical applications include voltage regulators, conductors, and glass-to-metal hermetic seals.
Composed of iron, nickel and cobalt, Kovar®1 has thermal expansion characteristics similar to hard glass, making it an excellent choice for glass-to-metal hermetic seals. Kovar® is widely used in the electronics industry.