Allvar
ALLVAR: Innovating metal alloys to combat thermal expansion effects, available in bar and tube forms.
Founded
2014ALLVAR: Innovating metal alloys to combat thermal expansion effects, available in bar and tube forms.
allvaralloys.comCrawled Oct 16, 2026
The demo uses negative thermal expansion ALLVAR Alloys to create an athermal optic.
The video explains how to choose between average and instantaneous CTE based on the material and application.
The video derives a figure of merit that describes a solution to the negative thermal focus shift problem in optomechanical design.
The page provides information about negative thermal expansion ALLVAR Alloys and their applications.
Carbon Fiber Reinforced Polymers (CFRP) vs ALLVAR: Near Zero Thermal Expansion Materials for space and ultra-stability.
Uncover the key benefits of Invar and ALLVAR Alloy 30 for precision engineering, including corrosion resistance and lower density.
ALLVAR Alloy washers and spacers are described as outperforming Invar washers, with lower weight, smaller spacers, and thermal performance.
Negative Thermal Expansion ALLVAR Alloys solve issues like athermalize optic designs, reduce thermal stress, and maintain a constant preload
The video describes how ALLVAR developed negative thermal expansion alloys from a scientific novelty into usable products.
ALLVAR offers negative thermal expansion alloys for athermalization and their applications.
ALLVAR alloys assist with athermalization and design challenges.
This page shows the ALLVAR privacy policy for the website.
NASA describes an Allvar collaboration focused on negative-thermal-expansion alloy structures for ultra-stable space telescopes. The structures support exoplanet discovery.
Jul 2025 · NASA ScienceNews article
ALLVAR reports 2022 progress, including an Army xTech competition win, NASA SBIR work, and customer partnerships.
Dec 2022 · ALLVAR AlloysNews article
ALLVAR announces a U.S. Air Force SBIR Phase I contract to develop negative-CTE alloys for optics applications. The announcement does not specify the contract value or project timeline.
Dec 2021 · ALLVAR AlloysNews article
Allvar receives a NASA SBIR Phase I grant to develop a high-temperature alloy with a negative coefficient of thermal expansion (CTE). The alloy is intended for planetary and lunar missions.
Sep 2020 · Military + Aerospace ElectronicsNews article