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An effective TBC needs to meet certain requirements to perform well in aggressive thermo-mechanical environments. [2] To deal with thermal expansion stresses during heating and cooling, adequate porosity is needed, as well as appropriate matching of thermal expansion coefficients with the metal surface that the TBC is coating.
Polyvinylpyrrolidone (PVP), also commonly called polyvidone or povidone, is a water-soluble polymer compound made from the monomer N-vinylpyrrolidone. [1] PVP is available in a range of molecular weights and related viscosities, and can be selected according to the desired application properties.
The Zombie Survival Guide is the first book written by American author Max Brooks, published in 2003. It is a fictional survival manual about zombies , containing information about zombie physiology and behavior, defense strategies and tactics, and includes case studies of possible zombie outbreaks throughout history.