Passive Athermalization made easy.

The process of removing thermal effects from a system is called athermalization. Creating an athermal design that actively athermalizes a system is challenging, and often increases the weight and complexity of a system. Passive athermalization achieves the same results as an active system, but without using powered systems or requiring outside feedback. It requires iterative changes and tweaks to hone the thermal changes of individual components in a design, so that they together work in unison to passively counteract thermal effects. These systems are challenging to design, manufacture, and test. ALLVAR Alloys makes this process much easier.

Targeted Thermal Expansion.

Negative thermal expansion ALLVAR Alloys allow engineers and designers to target a specific thermal expansion for their system. Designers select a specific thermal expansion, from –30 ppm/°C to a joined materials positive coefficient of thermal expansion, and incorporate a calculated length of ALLVAR Alloy 30 to hone in on a target CTE. Being able to tailor a specific CTE flips the design paradigm on its head.