
Concept explainers
The Miller-Bravais direction indices of the

Answer to Problem 55AAP
The Miller-Bravais Direction indices of the vector OA is
The Miller-Bravais Direction indices of the vector OB is
The Miller-Bravais Direction indices of the vector OC is
The Miller-Bravais Direction indices of the vector OD is
The Miller-Bravais Direction indices of the vector OE is
The Miller-Bravais Direction indices of the vector OF is
Explanation of Solution
For finding the Miller-Bravais direction indices we need coordinates of intercept of the plane. By using the method of indices the intercept
Coordinate of intercept of the vectors OA is
Coordinate of intercept of the vectors OB is
Coordinate of intercept of the vectors OC is
Coordinate of intercept of the vectors OD is
Coordinate of intercept of the vectors OE is
Coordinate of intercept of the vectors OF is
By using these intercept we will find the Miller-Bravais direction indices.
Conclusion:
Direction vector originating at the centre of the lower basal plane and ending at the end point of the upper basal plane for a Hexagonal closed packed unit cell.
Figure-(1)
The given closed packing is Hexagonal closed packing and the direction vector of the planes are shown in figure-1. Here, the originating vector at the centre of the lower basal plane and ending at the end point of the upper basal plane for a Hexagonal closed packed unit cell is defined in the figure-1
Miller-Bravais direction Indices for the Direction vector are tabulated below.
Direction Vector | Co-ordinates of intercepts | Reciprocal of intercept | Direction indices |
OA | |||
OB | |||
OC | |||
OD | |||
OE | |||
OF |
The Miller-Bravais Direction indices of the vector OAis
The Miller-Bravais Direction indices of the vector OB is
The Miller-Bravais Direction indices of the vector OC is
The Miller-Bravais Direction indices of the vector OD is
The Miller-Bravais Direction indices of the vector OE is
The Miller-Bravais Direction indices of the vector OF is
Want to see more full solutions like this?
Chapter 3 Solutions
Foundations of Materials Science and Engineering
- Homework#5arrow_forwardQuestion 1: Beam Analysis Two beams (ABC and CD) are connected using a pin immediately to the left of Point C. The pin acts as a moment release, i.e. no moments are transferred through this pinned connection. Shear forces can be transferred through the pinned connection. Beam ABC has a pinned support at point A and a roller support at Point C. Beam CD has a roller support at Point D. A concentrated load, P, is applied to the mid span of beam CD, and acts at an angle as shown below. Two concentrated moments, MB and Mc act in the directions shown at Point B and Point C respectively. The magnitude of these moments is PL. Moment Release A B с ° MB = PL Mc= = PL -L/2- -L/2- → P D Figure 1: Two beam arrangement for question 1. To analyse this structure, you will: a) Construct the free body diagrams for the structure shown above. When constructing your FBD's you must make section cuts at point B and C. You can represent the structure as three separate beams. Following this, construct the…arrow_forwardA differential element on the bracket is subjected to plane strain that has the following components:, Ɛx = 300 × 10-6, Ɛy = 150 × 10-6, Ɛxy = -750 x 10-6. Use the strain-transformation equations and determine the normal strain Ɛx in the X/ direction on an element oriented at an angle of 0 = 40°. Note, a positive angle, 0, is counter clockwise. x Enter your answer in micro strain to a precision of two decimal places. eg. if your answer is 300.15X106, please enter 300.15.arrow_forwardIf the 50 mm diameter shaft is made from brittle material having an ultimate strength of σult=595 MPa for both tension and compression, determine the factor of safety of the shaft against rupture. The applied force, F, is 140 kN. The applied torque T, is 5.0 kN⚫m. Enter your answer to a precision of two decimal places. T Farrow_forwardЗіс 1 mH 10 Ω m 16 cos 2.5 × 104 A Lic 592 10 Ω 1 μFarrow_forwardHomework#5arrow_forwardHomework#5arrow_forwardOxygen (molar mass 32 kg/kmol) expands reversibly in a cylinder behind a piston at a constant pressure of 3 bar. The volume initially is 0.01 m3 and finally is 0.03 m3; the initial temperature is 17°C. Calculate the work input and the heat supplied during the expansion. Assume oxygen to be an ideal gas and take cp = 0.917 kJ/kg K. For 1 bonus mark explain why (using your understanding of thermodynamics) that oxygen is used in this context rather than water vapour.arrow_forwardHydrodynamic Lubrication Theory Q1: Convert this equations into Python by 1- ah ap a h³ ap 1..ah = ax 12μ ax ay 12μ ay 2 ax Where P=P(x, y) is the oil film pressure. 2- 3μU (L² ε sin P= C²R (1+ cos 0)³ Q2: prove that |h(0) = C(1+ cos 0) ?arrow_forward### To make a conclusion for a report of an experiment on rockets, in which the openrocket software was used for the construction and modeling of two rockets: one one-stage and one two-stage. First rocket (single-stage) reached a maximum vertical speed of 200 m/s and a maximum height of 1000 m The second rocket (two-stage) reached a maximum vertical speed of 250 m/s and a maximum height of 1800 m To make a simplified conclusion, taking into account the efficiency of the software in the study of rocketsarrow_forwardWhat is the difference between saturated liquid and compressed liquid? What is the difference between the critical point and the triple pointarrow_forwardWhat is quality? Does it have any meaning in the superheated vapour region? What is the difference between saturated vapor and superheated vapour? What is the difference between saturated liquid and compressed liquid? What is the difference between the critical point and the triple point?arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY





