Gen 2 Hy-Bor®


Gen 2 Hy-Bor® is a next generation hybrid composite material that uses Toray’s T1100G intermediate modulus carbon fiber, 4 mil Boron fiber (208 FPI), and various resin systems depending on the end application.


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Benefits of Gen2 Hy-Bor®

·Approximately 40% by volume boron in a
Hy-Bor® product provides the compression strength of boron fiber (> 400 ksi)

·Boron fiber increases compression related properties of all carbon fiber composites

·Fiber volumes as high as 70% can be achieved with Hy-Bor® because of the nesting of the carbon fiber within the boron layers

 
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Gen 2 Hy-Bor® with Higher Temperature Resins

•General rule of thumb is dry Tg should be 50°F higher than upper use temperature (This is for composites that see humidity in service since humidity causes polymer plasticization which decreases Tg whereas stiffness decreases rapidly at Tg)

•Oxygen versus no oxygen environment needs to be considered because all polymers can oxidize (Mach 2.4 plane with flight life of 120,000 hours with skin temperatures of 350°F needed to use Polyimides because BMIs, Epoxies and Cyanate Esters did not exhibit thermo-oxidative stability)

•Short duration applications like missiles at very highs temperature may be acceptable with thermal protection system

Gen 2 Hy-Bor® Properties Compared to Traditional Carbon Only Composites

PropertyUnitsHy-Bor® Composites4.0 mil Boron208 FPICarbon Composites
Carbon Fiber Type-T1100GT1100GT1100GT1100GIM7IM7M46JT300
Resin System-TC380 (toughened epoxy, enhanced hot/wet properties)TC-350-1 (toughened epoxy)TC420 (cyanate ester)RS-8HTTC380 (toughened epoxy, enhanced hot/wet properties)TC-350-1 (toughened epoxy)TC420 (cyanate ester)RS-8HT
500 °F post cure(bismaleimide)500 °F post cure(bismaleimide) 550 °F post Cure
Dry Tg(DMA)°C201314348314201191348314
°F394597658597394376658597
Test Temperature°C2020202020202020
°F6868686868686868
Compression StrengthMpa2552324128972828149717316411269
Ksi37047042041021725193184
Compression ModulusGpa214248228248143153226126
Msi3136333620.722.232.818.3
Quasi-Open Hole Compressive StrengthMpa738745545614312323202-
Ksi107108798945.346.829.3-
Quasi-Compression After Impact StrengthMpa428283--290221--
Ksi6241--42.132--