Revolution Fibres earns AS9100C aerospace certification

New Zealand-based Revolution Fibres makes thermoplastics-based nanofiber veils for use in composite laminate stack-ups to improve interlaminar mechanical properties.

Revolution Fibres (Auckland, New Zealand) reports that it has earned AS9100C certification that will allow the company to further develop nanofiber products for its aerospace clients and enable it to make advancements in its work with composite materials.

Managing director Iain Hosie says the certification is a significant step in the transition of Revolution Fibres from a research and development (R&D) entity to offering large-scale manufacturing services in a diverse range of industries.

For example, he says being AS9100c certified enhances Revolution Fibres’ Xantu.Layr nanofibre composite reinforcement veil. Nanofibre applications engineer Dr. Gareth Beckermann explains that when Xantu.Layr is placed in between layers of carbon fibre in composite laminates it provides nano-scale reinforcement.

“Using Xantu.Layr results in a tougher resin which is less prone to failure or cracking when stressed or impacted," he says. "The product has been shown to significantly improve interlaminar fracture toughness, compression after impact strength, interlaminar shear strength and fatigue resistance of composite laminates.”

Xantu.Layr nanofiber veils are made up entirely of continuous polyamide 66 nanofibres. Each nanofiber in Xantu.Layr is about 150 nm in diameter (about 500x thinner than a human hair). The nanofibers are supplied in rolls 1m wide and 100m long, with removable backing paper. Revolution Fibres produces the nanofiber material using a process called Sonic Electrospinning.

Xantu.Layr nanofiber veils, says the company, have been shown to improve the interlaminar fracture toughness (ILFT), compression after impact strength (CAI) and fatigue resistance of composite laminates. Xantu.Layr has the advantage of being highly porous and thus does not impede the flow of resin during cure. The nanofibers have very high specific surface areas to promote good bonding with the matrix resin and are thin and lightweight, meaning that they do not significantly affect laminate thickness and weight.  

Xantu.Layr is available in three standard areal weights:

  • 1.5 gsm (approximately 5μm thick)
  • 3.0 gsm (approximately 15μm thick)
  • 4.5 gsm (approximately 25μm thick)