a) Sketch the thermal conductivity versus temperature from 0 to 1000K for silver. b) What is the dependence of K on T, as the temperature approaches absolute zero? c) How does the thermal conductivity change above 300 K?

I need help with the question in the picture below. the book refrenced is Materials Science and Engineering: An Introduction, 9e Thank you in advance

You are given the density of a metal as 2.07 g/cm³. You are advised the crystallographic structure is fcc, and the atomic mass is 25.5 g/mol. What is the atomic radius of the metal? a. 0.15 nm b. 0.12 nm c. 0.11 nm d. 0.18 nm

Consider a dislocation condition as shown below. A) what is the strain state in the upper region and B) how would addition of small impurity atoms in the region indicated by "*"s change it? oooooo OOOOO DO Select one: a. Compressive, would reduce compressive strain O b. Tensile, would decrease tensile strain O C. Compressive, would increase compressive strain Od. Tensile, would increase tensile strain Oe. Shear, would increase compressive strain

Project 4: a) Discuss the properties that related to FCC metals and compare it with SC and BCC structure. b) Compare between simple cubic cell (SC), body-centred cubic cell (BCC), face-centred cubic cell (FCC) and hexagonal close-packed cell (HCP) from all aspect Such as; the relation between a and R, and give some examples for each of them. c) Make a prototype for each one of them.

Metals conductivity (decrease / increase) with increasing the dislocation density.

Which of the following have the same periodicity as the crystal lattice: a) electron wave function, b) electron distribution probability, c) lattice potential

7) Silver nanoparticles are embedded in clothing fabric to kill odor-causing bacteria. Silver crystallizes in an fcc unit cell. a. How many unit cells are present in a cubic silver particle with an edge length of 35 nm? b. How many silver atoms are there in this particle? c. If there are 1500 µg of silver per sock, how many of these particles does this mass correspond to? Heating Curve Temperature Boiling point Melting point Solid and liquid in equilibrium A Solid B C Liquid and vapor in equilibrium Liquid Time D Vapor

a) Estimate the thermal conductivity along a copper film with various thicknesses: d = 400, 100, and 50 nm at 300 K. b) What if the temperature is reduced to 1 K?

a) The figure below shows three equilibrium structures that occur in an iron-carbon alloy, rank these from hardest to softest. b) The microstructure of an iron-carbon alloy consists of proeutectoid ferrite and pearlite. Relative mass to proeutectoid ferrite is 0.2 and pearlite is 0.80. How much carbon does this alloy contain?