Questions of metallurgy, CERAMICS and MATERIAL SCIENCE
1
in the IRON CARBON DIAGRAM Why solubility of carbon in iron decreases with increase in temperature ?
2
Pearlite has different % of cementite and ferrite
Why cementite and ferrite are of equal length in pearlite ?
3
In the IRON CARBON DIAGRAM delta ferrite exists at higher temperature as compared to austenite.
Delta ferrite has packing efficiency of 68 % and austenite has packing efficiency of 74 %.
In the IRON CARBON DIAGRAM Why solubility of carbon in delta ferrite is less than austenite ?
4
Write electronic configuration of iron, nickel and copper
Iron and nickel have more VALENCE electrons than copper.
Iron and nickel have more FREE electrons than copper.
WHY copper has higher ELECTRICAL CONDUCTIVITY than iron and NICKEL ?
5
What is the BRAVAICE LATTICE for a diamond cubic unit cell ?
6
How are the atoms of iron and carbon arranged in a unit cell of cementite
7
Iron has unpaired electrons and it is attracted by magnet
Sodium and potassium have unpaired electrons but why they are not attracted by magnet
8
Can you PLEASE derive the value of c / a ratio for a HCP or hexagonal close packed unit cell
9
Can you PLEASE derive the value of packing efficiency for a HCP or hexagonal close packed unit cell
10
what is the difference between screw dislocation and twist boundaries
11
What is the difference between edge dislocation and twin boundaries
12
How the equation for non steady or unsteady heat transfer has been derived
13
How the equation for non steady or unsteady diffusion has been derived
14
How these methods have been derived
A
Gauss Jordan method
B
Gauss siedel method
C
Jacobi method
15
What is Scarborough criterion for solving a set of more than 1 Linear equations
16
How Scarborough criterion has been derived
17
What is the difference between crystal system and crystal structure
18
There are how many crystal systems
19
There are how many crystal structures
20
What is the crystal system and crystal structure for a diamond cubic unit cell
in the IRON CARBON DIAGRAM Why solubility of carbon in iron decreases with increase in temperature ?
2
Pearlite has different % of cementite and ferrite
Why cementite and ferrite are of equal length in pearlite ?
3
In the IRON CARBON DIAGRAM delta ferrite exists at higher temperature as compared to austenite.
Delta ferrite has packing efficiency of 68 % and austenite has packing efficiency of 74 %.
In the IRON CARBON DIAGRAM Why solubility of carbon in delta ferrite is less than austenite ?
4
Write electronic configuration of iron, nickel and copper
Iron and nickel have more VALENCE electrons than copper.
Iron and nickel have more FREE electrons than copper.
WHY copper has higher ELECTRICAL CONDUCTIVITY than iron and NICKEL ?
5
What is the BRAVAICE LATTICE for a diamond cubic unit cell ?
6
How are the atoms of iron and carbon arranged in a unit cell of cementite
7
Iron has unpaired electrons and it is attracted by magnet
Sodium and potassium have unpaired electrons but why they are not attracted by magnet
8
Can you PLEASE derive the value of c / a ratio for a HCP or hexagonal close packed unit cell
9
Can you PLEASE derive the value of packing efficiency for a HCP or hexagonal close packed unit cell
10
what is the difference between screw dislocation and twist boundaries
11
What is the difference between edge dislocation and twin boundaries
12
How the equation for non steady or unsteady heat transfer has been derived
13
How the equation for non steady or unsteady diffusion has been derived
14
How these methods have been derived
A
Gauss Jordan method
B
Gauss siedel method
C
Jacobi method
15
What is Scarborough criterion for solving a set of more than 1 Linear equations
16
How Scarborough criterion has been derived
17
What is the difference between crystal system and crystal structure
18
There are how many crystal systems
19
There are how many crystal structures
20
What is the crystal system and crystal structure for a diamond cubic unit cell
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