The Nickel-Iron (NiFe) alloy family of Alloys 42, 46 and 48 are ideal for controlled-expansion applications. Containing 42, 46 or 48 percent Nickel, respectively, these alloys exhibit low thermal expansion characteristics over a range of temperatures. Adding Nickel to Iron reduces the coefficient of thermal expansion, which enables these alloys to suit a variety of applications. Examples include medical, electronics, aerospace engineering, telecommunications, and cryogenic components.
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Fotofab utilizes a chemical etching process to produce designs that can withstand harsh indoor and outdoor environments. The etching process uses an acid (Ferric Chloride) to cut into unprotected parts of a metal surface to create a design or image. Our etched projects can be machined and formed to your project’s specifications.
- Has low coefficient of thermal expansion
- Exhibits low thermal expansion characteristics over a range of temperatures
- The Alloys are easily machined
- Can be formed hot or cold
Alloy Etching Applications:
The Iron-Nickel family of Alloys 42, 46 and 48 is used mostly in electronic applications and applications that require joining of metal to glass or ceramics. These alloys are also ideal for applications that need thermal expansion to avoid problems within a joint area. Common uses include:
- Glass and ceramic seals
- Cathode ray tube electron guns
- Motor laminations