Advanced Materials
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Advanced Materials Solutions for Demanding Applications

Advanced Materials Solutions for Demanding Applications The High Performance System Solution AGY’s Advanced Materials offer a combination of six vital enhanced properties critical for your demanding applications: strength, impact resistance, stiffness, temperature resistance, fatigue resistance and radar transparency. Compared to conventional glass fiber, the enhanced properties of S-2 Glass fiber result in better weight performance. And when compared to aramid and carbon, the enhanced properties of S-2 Glass fibers deliver better cost performance. Stiffness Delivers 25% more linear-elastic...

Advanced Materials Solutions for Demanding Applications S-2 Glass Fiber s Analytical and Physical Testing s Data Resources s Established Relations AGY offers our customers a variety of solutions by producing both conventional glass fiber (known as E-Glass) and S-2 Glass fiber. Conventional glass fiber is an excellent reinforcement. That is why E-Glass is, by far, the largest volume composite reinforcement used today. For more demanding applications, AGY researched and invented S-2 Glass fiber, available in the following forms: s yarns, including untwisted forming cakes s rovings s chopped...

Advanced Materials Solutions for Demanding Applications The tensile strength of S-2 Glass fiber provides improved performance for finished parts. Compared to conventional glass fiber, S-2 Glass fiber offers significantly more strength: 85% more tensile strength in resin-impregnated strands. This means it efficiently translates into improved strength for fabrics, prepregs and laminates. Filament wound structures, such as rocket motor casings, F-18 fuel tanks and commercial pressure vessels, provide excellent examples. Military and commercial testing standards for aircraft fuel tanks and...

Advanced Materials Solutions for Demanding Applications S-2 Glass Fiber Enhanced Impact Resistance Compared to conventional glass fiber, S-2 Glass fiber offers better fiber toughness, modulus of resilience, and impact deformation – characteristics that efficiently translate improved impact capabilities to finished parts. Perhaps the ultimate test for impact resistance is in ballistic protection systems. S-2 Glass fiber properties provide maximum protection at minimum weight and cost. Owens Corning developed, in close cooperation with the U.S. Military, patented S-2 Glass armor systems....

Advanced Materials Solutions for Demanding Applications Fiber Tensile Modulus S-2 Glass fiber delivers 25% more stiffness than conventional glass fiber. The increased stiffness, coupled with enhanced impact resistance, makes S-2 Glass fiber an ideal choice for aircraft flooring applications. Aircraft floors must span supports, take concentrated foot and roller cart traffic, resist fire, corrosion and moisture – all within specific cost targets. As a result, the S-2 Glass fiber skinned panels are specified in most of today’s commercial aircraft. Enhanced Stiffness

Advanced Materials Solutions for Demanding Applications S-2 Glass fiber retains greater fiber tensile strength at elevated temperatures than conventional glass fiber, and it performs at up to 760°C (1400°F). For example, Ford engineers chose gaskets made from S-2 Glass fiber for their passenger car and light truck catalytic converters. The quality fit of the gaskets permits less use of costly precious metals. S-2 Glass fiber’s enhanced temperature resistance enables the converter gaskets to perform at the elevated operating temperatures created by today’s smaller engines and their hotter...

Advanced Materials Solutions for Demanding Applications S-2 Glass fiberreinforced composites combine stiffness, strength, impact resistance and temperature resistance with a high level of fatigue resistance (a measurement based on tolerance to damage accumulation). Because of this, S-2 Glass fiber composites are the material system of choice for helicopter blades and rotor assemblies. Major helicopter manufacturers, such as Bell and Sikorsky, continue to favor S-2 Glass fiber over metals in their rotor systems. Why? Because composite rotors and assemblies can withstand high levels of...

Advanced Materials Solutions for Demanding Applications Fiber Dielectric Constant at 10 GHz Enhanced Radar Transparency 7 S-2 Glass fiberreinforced composites offer electronic transparency. Compared to conventional glass fiber, S-2 Glass fiber delivers a 20% lower dielectric constant. This improved transparency – coupled with its inherent stiffness, strength, impact resistance, temperature resistance and fatigue resistance – makes S-2 Glass fiber a frequent choice for radome applications. The superior mechanical performance allows thinner structures which further enhance transparency. In...

Advanced Materials Solutions for Demanding Applications Hybridization Further Enhances Your Cost Performance Advantage S-2 Glass Fiber Enhanced Cost Advantage Compared to aramid and carbon fibers, S-2 Glass fiber is often as little as half the cost. Without jeopardizing performance, engineers are creating more cost conscious designs to meet the increasingly competitive demands of world markets. Availability High performance S-2 Glass fiber is available in the form of rovings, yarns, chopped fibers and as the single-end roving ZenTron fiber, directly from AGY. It is also available from our...

Advanced Materials Solutions for Demanding Applications Enhancing Your Knowledge of S-2 Glass Fiber S-2 Glass Fiber Comparison Data (Source: AGY Technical Center Database) The following charts demonstrate how the enhanced capabilities of S-2 Glass fiber may provide positive trade-off answers to meet your application requirements. Fiber Stress – Strain 800 Fiber Toughness E-Glass S-2 Glass Fiber K-49 Aramid AS4 Carbon Tensile Stress-Strain Strain Energy by Volume Fiber Impact Deformation 80 Fiber Specific Strain Energy x Wave Speed

Advanced Materials Solutions for Demanding Applications Fiber Tensile Strength After Exposure at Temperature 9,653 1400 E-Glass S-2 Glass Fiber K-49 Aramid AS4 Carbon % Oxygen Index Flame Resistance 60 Self-extinguish limit in air at 1 ATM oxygen index is 27% Tensile test performed at room temperature ASTM D2863 Goodman Diagram of S-2 Glass/Epoxy Fatigue vs. Various Materials E-Glass S-2 Glass Fiber K-49 Aramid AS4 Carbon Cyclic Stress Amplitude (Ksi) Fiber Volume Fraction 6.0 Coef Thermal Expansion (x10 -6 K -1 ) Carbon at 10 7 cycles S-2 Glass at 10 7 cycles 4340 Steel at 10 7 cycles...