Negative Coefficient of Thermal Expansion Resources

Resources

Home

ALLVAR University

Learn More About Negative CTE and ALLVAR Alloys

Add negative CTE to your design toolbelt! At ALLVAR, we aim to provide resources to help innovators design and use negative thermal expansion in their projects and applications. ALLVAR University was established as a resource to help teach the fundamentals of designing with negative thermal expansion.

ALLVAR News and Blog – Dig deeper into the regularly updated blogs to learn more about specific ALLVAR Alloys use cases and news.

Video Library – ALLVAR offers a wide range of educational videos on the principals of thermal expansion. Learn how these properties fit into the design of optical and mechanical systems. Want to see negative thermal expansion in use? Check out the demo videos to see ALLVAR Alloys in action.

Papers and Presentations – Here you can find links to publications related to ALLVAR Alloys and externally published presentations.

SOLIDWORKS Material Definition – Want to model ALLVAR Alloy 30 within SOLIDWORKS? We can help. Request the material definition here.

Negative CTE Blog Posts

Learn more about the work being done towards negative CTE alloys and their applications in the ALLVAR blog series.

Matching ZERODUR's CTE Blog Post Header Image

Matching ZERODUR®’s CTE – ALLVAR Alloy 30 enabled near zero CTE struts

ZERODUR is known for it’s zero CTE. Learn how ALLVAR Alloy 30 can help match supporting structure’s CTE to ZERODUR.

Introductory Guide to Tailored Thermal Expansion

Want to match a certain CTE? The tailored thermal expansion guide has you covered. Learn how negative thermal expansion can help here.

Telescope Hexapod Assembly with ALLVAR Alloy ultra-stable struts shown. A zoomed in image is shown on the negative CTE portion of the strut. The Words Creating the future of ultra-stable struts is shown above the image.

Creating the Future of Ultra-Stable Telescopes

Negative thermal expansion ALLVAR Alloy 30 offers a solution for the future of ultra-stable telescope requirements. Read about our current work to enable ultra-stable telescopes

CTE Mismatch and Bolted Joints - A fastened cryogenic apparatus is shown with an ALLVAR Alloy 30 Negative Thermal Expansion washer.

CTE Mismatch in Bolted Joints – Negative Thermal Expansion Washers offer a solution!

CTE Mismatch in Bolted Joints challenging your design? Check out how a simple NTE Washer can help maintain constant bolt preloads complete with a FEA

Negative Thermal Expansion ALLVAR Alloys vs Invar

Invar vs ALLVAR Alloys: Controlled Thermal Expansion Materials

Invar vs ALLVAR Alloys. In the realm of controlled thermal expansion, there is a new challenger to Invar’s long held title – ALLVAR Alloys. Learn

ALLVAR Awarded SBIR Phase I Contract

ALLVAR has been awarded a US Air Force SBIR Phase I contract. This Phase I contract will allow ALLVAR to connect and partner with US

Unobtanium Takes the Stand: a Q&A with Team ALLVAR

Here at ALLVAR, our unique products are often met with curiosity, disbelief, and extreme interest upon learning about our negative CTE alloys.
Read this

Precision Manufacturing Solutions with Negative Thermal Expansion Materials

Precision Manufacturing Solutions with ALLVAR Alloys

Precision manufacturing and optical fabrication are two markets where ALLVAR’s negative thermal expansion alloys can undoubtedly help.
Do you need to tackle the CTE

Negative Thermal Expansion for Defense Solutions

Negative CTE, Positive Results: Exploring Athermalization Solutions for Defense Optics

Athermalization enabled for defense optics. ALLVAR Alloys benefit defense by enabling smaller, lighter systems with improved lead time and reduced scrap.

Learn More About Negative CTE and ALLVAR Alloys

Add negative CTE to your design toolbelt! ALLVAR offers a wide range of educational videos on the principals of thermal expansion. Learn how these properties fit into the design of optical and mechanical systems. Want to see negative thermal expansion in use? Check out the demo videos to see ALLVAR Alloys in action.