Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Other Engineering Expert

These problems are available from the WATTLE site:

problem 1: Forensics case study

As a forensic materials expert – you have been asked to recognize a metallic powder found on the clothing of someone suspected of fabricating an incendiary device used in an armed robbery.

The suspect suggests that the powder is tungsten – which he employs a lot in his line of work. The police believe that the powder is part of a chromium/silver/nickel mixture frequently used in such devices. Armed with the given information from an X-ray powder diffraction analysis – what can you conclude?

Using Cu kα radiation of 0.1542nm, three large diffraction peaks were observed at 44.4°, 64.6° and 81.7°.

problem 2: Metal density

Titanium (element number 22) has an HCP unit cell for which the ratio of lattice parameters at a specific elevated temperature is c/a = 1.633. If the radius of the Ti atom is 0.1445nm

a) Find out the unit cell volume.          
b) Compute the density of titanium.

problem 3: Crystallographic transformation

On cooling from the molten state, titanium solidifies to a BCC lattice structure. Though, on cooling to below 880°C, a change takes place whereby the crystal structure transforms into an HCP structure. Supposing the number of atoms remains constant and that the lattice parameters are as shown below, compute the volume change related with this transformation.

For the BCC lattice: a = 3.32Å
For the HCP lattice: a = 2.956 Å and c = 4.683 Å

Titanium is a generally used metal in engineering structures. Describe why your findings above must be cause for concern if these engineering structures are to be employed at high temperatures.

Other Engineering, Engineering

  • Category:- Other Engineering
  • Reference No.:- M9962

Have any Question? 


Related Questions in Other Engineering

Assignment statementclimate change is a serious challenge

ASSIGNMENT STATEMENT Climate change is a serious challenge to the Kingdom of Saudi Arabia, which is under tremendous pressure as a result of the hyper aridity of the climate, severe shortage in water resources, rapidly g ...

I need a report on what is a robot and also discuss seven

I need a report on what is a robot and also discuss seven criteria of defining a robot ( using the book robot programming a guide of programming autonomous robots) I need 4 pages not including references.

Exercise 1charity is a big business in the united states

Exercise 1 Charity is a big business in the United States. The Web site charitynavigator.com gives information on roughly 5500 charitable organizations, and there are many smaller charities that fly below the navigator's ...

Part -1chapter 1 - introduction introduce the project

Part -1: CHAPTER 1 - Introduction: Introduce the project problem; define the scope, aim and objectives of the investigations. CHAPTER 2 - Literature Review: Describe the literature/ theory reviewed which are relevant to ...

1 your boss wants to modify an aircraft by stretching the

1. Your boss wants to modify an aircraft by stretching the fuselage, but only forward of the cg, by a length al. The fuselage has a circular cross section of diameter d. Estimate how much you need to increase the planfor ...

Microprocessors projectoverviewyou are required to complete

MICROPROCESSORS PROJECT Overview You are required to complete a final project for this course. It requires you to build a fully functional prototype of a standalone gadget which will be an alarm clock and will also displ ...

Time managementdiscuss some of the reasons why individuals

Time Management Discuss some of the reasons why individuals routinely over-estimate the time for project activities. How is this behavior detrimental to the schedule and project? Are some of these reasons more prevalent ...

Electronics lab transistor biasingintroductionlab is based

Electronics Lab: Transistor Biasing Introduction: Lab is based on the fundamentals of a transistor biasing and the analysis of the circuit. The goal of Transistor Biasing is to establish a known Q-point in order for the ...

Assignmentdiscussionanalog integrated circuits amp

Assignment Discussion Analog Integrated Circuits & Lab Op-Amp Application and Datasheets Directions: Please answer BOTH of the questions and respond to a minimum of two of your classmates. Question A Discuss why it is im ...

Power flow project -figure 1 shows a single-line diagram of

Power Flow Project - Figure 1 shows a single-line diagram of a five-bus power system. Input data are given in Tables 1, 2, and 3. As shown in Table 1, bus 1 is the swing bus, to which a generator is connected. Bus 3 is a ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen