Tempering eliminates internal stresses in glass. True or False
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Tempering eliminates internal stresses in glass.
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- During thermal tempering, a glass piece is heated to a temperature: A = %3D Above the glass transition temperature. ; B = Below the glass transition temperature. ; C = Above the softening point. ; D = Below the softening point. A & C B & D A & D B & CCan someone please help me to answer the following question completely. PLEASE AND THANK YOU!!!What is an alloy?
- A steel rod whose ends are restrained is placed in a structure when the temperature is 80 F (degrees Fahrenheit). If the modulus of elasticity is taken as 29,000,000 psi, what unit stress is produced in the rod due to shrinkage when the temperature is 43 degrees F? A. 6970 psi B. 8100 psi C. 15,080 psi D.18,850 psiDefine the term, curved members?Classify each material as a metal, polymer, ceramic or composite based on the properties listed. Brass – Electrically conductive, strong. Magnesium oxide – Electrical and thermal insulator, can resist high temperatures. Plexiglas – Light weight, electrical insulator, cannot withstand large loads. Polychloroprene – Low density, high ductility, not strong, electrical insulator. Boron carbide – High hardness, high stiffness, high toughness.
- In fabrication of the high-temperature turbine blades, if you wished to minimize the centrifugal forces on the blades leading to failure, which materials science strategy would be best: Select one: Oa. Orient the crystals from the root of the blade to the apex Ob. Use an amorphous material O c. Orient the crystals perpendicular to the line from the root of the blade to the apex Od. Orient the crystals randomlyDirect hardening can be performed on steel containing at least________ carbon.Alloying elements are added to steals for many purposes, including increasing harden ability , improving machine ability, increasing corrosion resistance, and improving mechanical properties at either high or low temperatures. True or false.
