21 Questions 51 Answers 0 Followers
Questions related from Osamah Ihsan Ali
why bonding between carbon fibers and an epoxy matrix should be excellent, whereas bonding between silicon nitride fibers and a silicon carbide matrix should be poor ??
01 January 1970 4,043 4 View
why the thermal conductivities are higher for crystalline than noncrystalline ceramics?
01 January 1970 1,269 4 View
A steel part can be made by powder metallurgy (compacting iron powder particles and sintering to produce a solid) or by machining from a solid steel block. Which part is expected to have the...
01 January 1970 9,688 9 View
why Cathodic polarization proceeds when the over-voltage is less than zero.
01 January 1970 6,839 3 View
why, for a small anode-to cathode area ratio, the corrosion rate will be higher than for a large ratio.?
01 January 1970 7,860 13 View
why upon solidification, an alloy of eutectic composition forms a microstructure consisting of alternating layers of the two solid phases. ?
01 January 1970 8,316 9 View
What is the difference between engineering stress and true stress in a tensile test?
01 January 1970 9,876 6 View
Why anodic polarization occurs when ηA > 0 and cathodic polarization takes place when ηC < 0?
01 January 1970 7,672 4 View
How do grain boundaries contribute to the strain hardening phenomenon in metals?
01 January 1970 8,787 19 View
what is the difference between resolved shear stress and critical resolved shear stress. ?
01 January 1970 6,478 2 View
What causes a decrease in the free energy of activation required for the forward process of dissolution?
01 January 1970 8,690 2 View
Why the relationship between E vs log I is exponential if concentration polarization occurs?
01 January 1970 9,126 3 View
How is shear strength S related to tensile strength TS, on average?
01 January 1970 8,500 5 View
how the volume of fiber, fiber orientation, and fiber strength and modulus affect the properties of fiber-reinforced composites ?
01 January 1970 1,139 4 View
What is the difference between control charts for variables and control charts for attributes?
01 January 1970 2,200 4 View
Why the current starts to recede as soon as the critical current density (icritical) is reached as observed in a S-shaped anodic polarization diagram for active–passive metals?
01 January 1970 9,701 4 View
How does the change in cross-sectional area of a test specimen in a compression test differ from its counterpart in a tensile test specimen?
01 January 1970 9,854 7 View
why Tafel relationship is dependent on activation control method and not on diffusion control ?
01 January 1970 6,133 4 View
what differences between deformation by twinning and deformation by slip relative to mechanism, conditions of occurrence, and final result.
01 January 1970 3,422 2 View
What are the parameters of a machining operation that are included within the scope of cutting conditions?
01 January 1970 1,453 15 View
What renders the dissolutions of a metal M more rapid when the reaction is irreversible and why the reverse process does not take place?
01 January 1970 1,231 0 View
