Heat-treatments of
Carbon Steel
Heat Treatments
An operation or series of operations which
involve the heating and cooling of a metal
or alloy in the solid state
Carried out for the purpose of obtaining
certain desired microstructures, and hence
properti
1
Chapter 4. Imperfections In Solids
Why study imperfections in solid? The properties of some
materials are profoundly influenced by the presence of
imperfections.
ISSUES TO ADDRESS
Point defects
Equilibrium concentration of point defects
Imperfection
1
Chapter 2
Atomic Structure and Interatomic Bonding
ISSUES TO ADDRESS.
1. Basic concepts of atomic structure
2. Electron configurations in atom and the periodic table
3. What promotes bonding?
4. What types of bonds are there?
5. What properties are infe
1
Chapter 3. The structure of crystalline solids (I)
ISSUES TO ADDRESS
1. How do atoms assemble into solid structures?
(For now, focus on metals)
2. How does density depend on the structure?
3. How do material properties vary with sample
orientation?
Ref:
AP1202 General Physics
II
4. Electric Potential
Demo Discs 17, Wiley
Demo
Work Done by
Gravitational
Force
You throw a tomato upwards. While it is
in the air the only force acting on it is the
gravitational force.
On the way up, the force is in opposite
d
AP1202
General Physics II
6. Current and Resistance
Demo Discs 17,
18
Electric
Current
(a) A loop of copper in
electrostatic equilibrium. The
entire loop is at a single potential,
and the electric field is zero at all
points inside the copper. (b)
Adding
AP1202 General Physics
II
5.5 Capacitance
Demo Disc
18
Capacitors
You can store energy as
potential energy by pulling a
bowstring, stretching a spring,
compressing a gas, or lifting a
book. You can also store
energy as potential energy in
an electric fiel
AP1202 General Physics
II
3. Gauss Law
Demo Disc
17
vA
Flow Rate
(a) A uniform airstream of velocity v is
perpendicular to the plane of a square loop
of area A. (b) The component of v
perpendicular to the plane of the loop is v
cos , where is the angle be
AP3205 Lecture 1
Reviews of Vector Algebra,
Differential and Integral Calculus
Scalar and Vector
Scalar
Quantities which have magnitude only
mass, time, temperature, .
Vector
Quantities which have both magnitude and
direction
velocity, acceleration, force
3205 Lecture 6
Polarization
The Field of a Polarized Object
The Electric Displacement
Linear Dielectrics
Reference Reading: Chapter 4
n
4.1 Polarization
n
n
n
n
Dielectrics
Induced Dipoles
Alignment of Polar Molecules
4.2 The Field of a Polarized Object
n
3205 Lecture 3
Electric Potential
Work and Energy in Electrostatics
Boundary Conditions
Reference Reading: Chapter 2
n
2.3 Electric Potential
n
n
n
n
n
n
Introduction to Potential
Comments on Potential
Poissons equation and Laplaces equation
The potential
AP3205 Lecture 2
The Electric Field
Divergence & Curl of Electrostatic
Fields
Reference Reading: Chapter 2
n
2.1 The Electric Field
n
n
n
n
Coulombs law
The electric field
Charge distributions
2.2 Divergence & Curl of Electrostatic
Fields
n
n
Field lines,
AP3205 Lecture 9
Magnetization
The field of a Magnetized Object
The Auxiliary Field H
Linear and Nonlinear Media
Reference Reading: Chapter 6
6.1 Magnetization
Diamagnets, Paramagnets, Ferromagnets
Torques and Forces on Magnetic Dipoles
Effect of a Magnet
3205 Lecture 4
Laplaces Equation
Separation of Variables
Fourier Series
Multiple Expansion
1
Reference Reading: Chapter 3
3.1 Laplaces Equation
Introduction
Laplaces Equation in One Dimension
Laplaces Equation in Two Dimensions
3.3 Separation of Variables
3205 Lecture 9
Biot-Savart law
The Divergence and Curl of B
Amperes Law
Reference Reading: Chapter 5
n
5.2 The Biot-Savart Law
n
n
n
Steady Currents
The Magnetic Field of Steady Current
5.3 The Divergence and Curl of B
n
n
n
Straight Line Currents
The Div
3205 Lecture 5
Fourier Transforms
The Method of Images
Reference Reading: Chapter 3
Fourier Transform
Chapter 14, Mathematical Methods for
Physicists, Arfken, Academic Press
3.2 The Method of Images
The Classic Image Problem
Induced Surface Charge
Force a
3205 Lecture 7
Current and magnetic field
Reference Reading: Chapter 5
n
5.1 The Lorentz Force
n
n
n
Magnetic Fields
Magnetic Forces
Currents
The origin of our trouble!
Magnetic monopoles do not exist in isolation.
Current
Current
Consider a long conduct
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AP1203 General Physics III
Homework Assignment #2
(Due at 5pm on Mar. 16th, 2016 at G6601, AC1)
1. (10 pts) A 0.500kg glider, attached to the end of an ideal spring with force
constant k=450N/m, undergoes simple harmonic motion with an amplitude
0.040m. (
AP 1201
Charpter-6
Temperature and Heat
Q1 An Overflowing Flask
If a given volume of mercury overflows a glass flask when heated,
calculate the coefficient of volume expansion for the glass.
A glass flask whose volume is 1000 cm3 at a temperature of 1.00
Chapter 5
Rotation of Rigid
Bodies
Goals for Chapter 5 Part I
To describe rotation in terms of angular
coordinate, angular velocity, and angular
acceleration
To analyze rotation with constant angular
acceleration
To relate rotation to the linear veloci
Chapter 5 Applying Newtons Law
Remark:
v = velocity(ms-1)
R = radius of circular path (m)
T = period (s)
-2
a = acceleration(ms )
m = mass of an object (kg)
f = friction (N)
w = the gravitational force exerted on it by the earth (ms-2)
g = 9.81 ms-2
= coe
Chapter 1
Vectors and simple calculus
Objective
To prepare you for other topics by providing with
some mathematical background, mainly vector
AP1201 is about mechanics (motion, force) wave
(sound, wave on a string and in a pipe) and
heat
Topics for Chapte
Hong Kong Polytechnic University
Tutorial
Question: True or false (a) If an equation is dimensionally correct,
does that mean that the equation must be true?
(b) If an equation is not dimensionally correct, does that mean that
the equation cannot be true?
AP1201 Chapter 7
Thermal Properties of Matter
(Chapter 18 of textbook)
Objective
To learn how thermal state of a gas changes and its
possible application (thermal states of matters can be
used in engines)
To understand the thermal properties in terms of
m
AP1203 General Physics III
Homework Assignment #1
(Due at 6pm on Sep. 28th, 2016 at G6601, AC1)
1. (10 pts) Consider the following two-car
accident: Two cars of equal mass m collide at
an intersection. Driver E was traveling
eastward, and driver N,
Chapter 1
Vectors and simple calculus
Objective
To prepare you for other topics by providing with
some mathematical background, mainly vector
Topics for Chapter 1
vectors and scalars
add vectors graphically
vector components
unit vectors and component
Chapter 4
Work and Kinetic
Energy
Goals for Part 1
the work done by a force
the meaning of kinetic energy
how work changes the kinetic energy of a
body and how to use this principle
Reason for learning work done
The simple methods of chapter 3 using N
Chapter 5
Rotation of Rigid
Bodies
Goals for Chapter 5 Part I
To describe rotation in terms of angular
coordinate, angular velocity, and angular
acceleration
To analyze rotation with constant angular
acceleration
To relate rotation to the linear veloci