Scalable polymer cold spray repairs cracked composite materials on-site, restoring nearly all of their original load-bearing durability

https://techxplore.com/news/2026-07-polymer-cold-spray-strength-composite.html

"localized melting method can cause structural defects, microstructural fiber degradation, lingering thermal stresses on composite material, overcome accelerating µm-sized thermoplastic/ thermoset powder particles through high-velocity gas stream depositing them directly onto substrate without melting... restores up to 80% lost mechanical properties where shallow impact damage/ up to 40% for deeper structural fractures... lightweight infrastructures: aerospace, automotive, wind turbines"

Related:

Tuning brittle failure with a dash of active particles
https://www.eurekalert.org/news-releases/1140063

How multilayer nanocoatings dissipate energy at the nanoscale to prevent failure
https://phys.org/news/2026-08-multilayer-nanocoatings-dissipate-energy-nanoscale.html