Glasses tensile strength

The cooling rate should preclude the formation of permanent stresses exceeding ]/20—l/40th of the glass tensile strength, i.e. approximately 1.5 —3,0 MPa which corresponds to an optical path difference of 50—lOO nm cm in birefringence measurements (see later). 

C-glass Tensile strength wear resistance Defence blended with conductive fiber... 

Continuous Filament (%) Chopped Glass (%) Tensile Strength MPa Flexural Strength MPa Transverse Tensile Strength MPa Transverse Flexural Strength MPa... 

Glass Tensile Strength, MN/m Flexural Yield Strength, MN/ro Flexural (tan) Modulus, GN/m Strain at Yield, % ... 

Thickness, mm Amount of Mat Layers Share of Glass, % Tensile Strength, MN/m Permeability Factor, PIO , kg m/ s MPa... 

Glass-fiber-reinforced (increased stiffness and tensile strength) and mineral filled (reduced shrink and warp) grades also have been developed. 

Hours to 50% retention of initial tensile strength under carbon arc exposure, kj /m to 50% retention of tensile strength Florida under glass exposure. 

Modified ETEE copolymer has excellent weather resistance tensile strength and elongation ate not affected. On the other hand, tensile and elongation properties of the glass-reiaforced compound show a significant reduction. 

Polycarbonates are an unusual and extremely useful class of polymers. The vast majority of polycarbonates are based on bisphenol A [80-05-7] (BPA) and sold under the trade names Lexan (GE), Makrolon (Bayer), CaUbre (Dow), and Panlite (Idemitsu). BPA polycarbonates [25037-45-0] having glass-transition temperatures in the range of 145—155°C, are widely regarded for optical clarity and exceptional impact resistance and ductiUty at room temperature and below. Other properties, such as modulus, dielectric strength, or tensile strength are comparable to other amorphous thermoplastics at similar temperatures below their respective glass-transition temperatures, T. Whereas below their Ts most amorphous polymers are stiff and britde, polycarbonates retain their ductiUty. 

Nonoxide fibers, such as carbides, nitrides, and carbons, are produced by high temperature chemical processes that often result in fiber lengths shorter than those of oxide fibers. Mechanical properties such as high elastic modulus and tensile strength of these materials make them excellent as reinforcements for plastics, glass, metals, and ceramics. Because these products oxidize at high temperatures, they are primarily suited for use in vacuum or inert atmospheres, but may also be used for relatively short exposures in oxidizing atmospheres above 1000°C. 

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