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  2. Hard hat - Wikipedia

    en.wikipedia.org/wiki/Hard_hat

    A hard hat is a type of helmet predominantly used in hazardous environments such as industrial or construction sites to protect the head from injury due to falling objects (such as tools and debris), impact with other objects, and electric shock, as well as from rain. Suspension bands inside the helmet spread the helmet's weight and the force ...

  3. Carbon fibers - Wikipedia

    en.wikipedia.org/wiki/Carbon_fibers

    Carbon fibers or carbon fibres (alternatively CF, graphite fiber or graphite fibre) are fibers about 5 to 10 micrometers (0.00020–0.00039 in) in diameter and composed mostly of carbon atoms. [1] Carbon fibers have several advantages: high stiffness, high tensile strength, high strength to weight ratio, high chemical resistance, high ...

  4. Micarta - Wikipedia

    en.wikipedia.org/wiki/Micarta

    Micarta industrial laminates are normally phenolic, epoxy, silicone, or melamine resin based thermoset materials reinforced with fiberglass, cork, cotton cloth, paper, carbon fiber or other substrates. Micarta industrial laminate sheet is a hard, dense material made by applying heat and pressure to layers of prepreg. These layers of lamination ...

  5. Composite material - Wikipedia

    en.wikipedia.org/wiki/Composite_material

    Carbon Fiber High Modulus Carbon Fiber E-Glass Fiber Glass Standard Carbon Fibers Fabric E-Glass Fiber Glass Fabric Steel Al Longitudinal Modulus E1 GPa 17 17 12.3 19.1 12.2 207 72 Transverse Modulus E2 GPa 17 17 12.3 19.1 12.2 207 72 In Plane Shear Modulus G12 GPa 33 47 11 30 8 80 25 Poisson's Ratio v12 .77 .83 .53 .74 .53 Tensile Strength Xt MPa

  6. Advanced composite materials (engineering) - Wikipedia

    en.wikipedia.org/wiki/Advanced_composite...

    Advanced composites exhibit desirable physical and chemical properties that include light weight coupled with high stiffness , and strength along the direction of the reinforcing fiber, dimensional stability, temperature and chemical resistance, flex performance, and relatively easy processing.

  7. Composite baseball bat - Wikipedia

    en.wikipedia.org/wiki/Composite_baseball_bat

    Composite baseball bats, opposed to aluminum or wood baseball bats, incorporate a reinforced carbon fiber polymer, or composite, into the bat's construction. This composite material can make up all or part of the bat. Bats made entirely of this polymer are referred to as composite bats.

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