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

Biomedical engineering modelling amp analysis assignment

Biomedical Engineering Modelling & Analysis Assignment - Aim and Learning Outcomes: To use appropriate software to solve a set of differential equations related to a topical engineering problem and use the solutions to m ...

Process descriptionyour job is to design heat exchanger cl

Process Description Your job is to design heat exchanger Cl for the process to produce aromatics from shale gas. Details of the process have been given in the handouts in CHE 300. Please use the stream and units numbers ...

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.

Telecommunications engineering assignmenttopic fixed

Telecommunications engineering assignment Topic: Fixed wireless broadband internet access Introduction 1. Definition 2. How it work 3. Highspeed internet chioces : DSL , 4G wireless call phone internet. Theard point writ ...

System administration assignment-aim the aim of this

System Administration Assignment- Aim: The aim of this assignment is to become familiar with subnet masking and designing small networks for fictitious organizations. Task: Imagine you work for a firm which provides syst ...

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 ...

Design and build a counter that can display the sequence

Design and build a counter that can display the sequence assigned to you by the instructor (see table below). Use two J-K flip-flops for the two most significant bits and two D flip-flops for the two least significant bi ...

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 ...

Stting up a xilinx project for the bcd clockobjective

Setting up a Xilinx project for the BCD Clock Objective: This document is intended to be used as a reference guide to aid in setting up and working with a Xilinx ISE WebPACK project for use with the BCD clock project. Pr ...

Assignment detailsa company is at the start of the process

Assignment Details A company is at the start of the process of designing a new 7 storey office block to be located in Preston (England) with a single stair. The floor to floor height is to be 3.4m with the top storey of ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

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