Ajournalist has a deadline of 11 p. m. she hears news of a major explosion at 10: 30 p. m. and does not have time to do much investigation before turning in her report. she decides to make up a few details to make the story more interesting. this is an example of

Not a characteristic property of ceramic material (a) high temperature stability (b) high mechanical strength (c) low elongation (d) low hardness

Along steel shaft of 10 cm diameter is austenised at 870°c and then quenched in a liquid at 30oc. the average surface heat transfer coefficient is 2000 w/m2. °c. the relevant thermophysical properties of the shaft are: p=7800 kg/m", k=20 w/mk, cp=0.46 kj/kg.k calculate: a)-the time required for the center temperature to drop to 200°c. b)-the temperature at half-radius at that moment. c)-the amount of heat that had been transferred to the liquid by that time per meter length of the shaft

Briefly discuss how plastic deformation occurs in crystalline materials discuss the five most important methods of strengthening of metals and alloys.