User Account

All Pages

ENGINEERING SCIENCE, Other Engineering

Assignment Help:
QUESTION 7
As a forensic materials expert – you have been asked to identify 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 uses a lot in his line of work. The police believe that the powder is part of a chromium/silver/nickel mixture often used in such devices. Armed with the following information from an X-ray powder diffraction analysis – what can you conclude?
Using Cu ka radiation of 0.1542nm, three large diffraction peaks were observed at 44.4°, 64.6° and 81.7°.

QUESTION 9 – Crystallographic transformation
On cooling from the molten state, titanium solidifies into a BCC lattice structure. However, on cooling to below 880°C, a change occurs whereby the crystal structure transforms into an HCP structure. Assuming the number of atoms remains constant and that the lattice parameters are as shown below, calculate the volume change associated 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 commonly used metal in engineering structures. Explain why your findings above should be cause for concern if these engineering structures are to be used at high temperatures.

Related Discussions:- ENGINEERING SCIENCE

Four stroke diesel engine, FOUR STROKE DIESEL ENGINE: T he cycle of ev...

FOUR STROKE DIESEL ENGINE: T he cycle of events that takes place in a four -stroke diesel engine has been shown. Unlike the petrol which drawn in a mixture of air and petrol,

Explain the instruction format of an assembler, Question 1 What is a compu...

Question 1 What is a computer? Explain the block diagram of a general purpose digital computer Question 2 Explain the instruction format of an assembler Question 3

#Parcellary Survey, What is Parcellary Survey?

What is Parcellary Survey?

Fire safety management for clubs, Fire safety management for clubs: In...

Fire safety management for clubs: In clubs and other places where there is music being played, or other entertainment, it is important that the music (or other entertainment)

Sas software, I need assistance in SAS software based stats questions, can ...

I need assistance in SAS software based stats questions, can you provide me solution?

Problem, The following exchange rates are available to you. (You can buy or...

The following exchange rates are available to you. (You can buy or sell at the stated rates.) Mt. Fuji Bank ¥85.00/$ Mt. Rushmore Bank SF1.356/$ Mt. Blanc Bank ¥64.74/SF Assume t

Balanced mutual fund, Balanced Mutual Fund The mutual fund that objective i...

Balanced Mutual Fund The mutual fund that objective is a balance of stocks & bonds. Balanced funds refer to be less volatile than stock only funds. The return or principal value of

Timber, seasoning of timber

seasoning of timber

Case1, Flifla sells tomatoes every day in Suk al Marqazi, the downtown frui...

Flifla sells tomatoes every day in Suk al Marqazi, the downtown fruit and vegetable market. He finds that he can order tomatoes in crates of 25 kg and he is able to stock a maximum

Programming, A charitable organization wants to design a special ATM machin...

A charitable organization wants to design a special ATM machine to be used by needy people. The association supplies the needy person with a pin number to be able to use the ATM

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd