Materials engineering Definition and 46 Threads

Hi all, Hope we have some electron beam evaporation specialists in the house. I'm working with an Telemark Electron Beam Source (Linear Multi-pocket and would like some help with the issues I am facing currently. I'm seeing blue light around both sides of the crucible when the e-beam is turned...

I would like to plan on a postgraduate studies in Material Characterization - Semiconductor; how difficult is this subject since there are a varity of technques to master them properly in order to join the Semiconductor Industry?

I want to build a spherical speaker with a diameter of about 50 cm. The frequency response should be relatively deep. Now my question is, which type of plastic is best for it and how thick does the housing have to be?

Summary:: Need help with finding values using Fe c diagram Hi, I'm doing a materials engineering assignment. In the assignment they require us to make 3 swords being given martenistic steel bars with dimensions 40x100x1000mm with a composition of Fe-0.76wt.%C (eutectoid composition). Sword A...

So with our initial prototype for our anaerobic digester, we weren't able to sustain the right temperature inside the tanks. One idea we came up with is to use the heat from the compost bins that is only within 10-20 feet from our tanks. We plan to circulate the fluid inside the digestion tanks...

Hello there. I'm a veteran science teacher at the middle and high school level. I've taught a few years of physics and am interested in moving towards engineering. I have looked at a number of available curricula like Project Lead the Way which require a significant investment in time and money...

Hello, Looking for some guidance for my son. He will be a senior in high school in the fall and will be applying to university programs in Ontario, Canada. He is leaning towards studying chemistry and/or physics. We (his parents) absolutely want him to follow his passions, but of course are...

Hi I'm on to the last question for my HNC and having a nightmare trying to work out my best options! Any help would be greatly appreciated! The bracket show in figure 1 is to be used to mount an outboard motor onto the transom of a boat. a. suggest two appropriate materials which will require...

Hi I was wondering where I should look and what specifically should I study if i am trying to understand foam extrusion as a chemical process. , why certain defects appear in foam products considering that they are as a result of some extrusion or chemical mistakes. in short, i want to know...

I am having difficulty in finding a solution that can etch away tin compounds in my metallic surface. The metallic surface has a composition of palladium, copper, and silver. There is a tin compound deposited on the surface which I would like to etch away or remove. This is on a microscopic...

If my professor tasked me with finding out where to find the materials for setting up an electromagnetic ring expansion test, where is a good place to start? Generally, what is a good procedure to follow when setting up an experiment? I am not very experienced but I would like to learn. The...

Homework Statement How does the compressive strength of concrete samples compared to the expected compressive strength of cured concrete. If different explain why. The Attempt at a Solution I think the question is asking what is the relationship between time and curing. And I think that the...

Hello everyone, I have a request. Can someone please provide me with a metallurgy research design template? I'm starting my 5th year in a MSE PhD program and for the last 3 years my advisor has instructed me to perform experiments on my alloy without reason. And while I thought this was...

Hi everyone, first time poster here, I'm studying for a Materials exam, one of my weakest subjects and this question is causing me a lot of pain: Beryllium (Be) is a HCP metal with an atomic weight of 9 g mol-1 , an atomic radius of 0.112nm and a density of 1850 kg m-3 . Calculate its c/a ratio...

Hello everyone, I am currently enrolled in a Materials Engineering course, but I recently found out that I might be allowed to switch to Biomaterials Engineering, which sounds a bit more appealing to me, since, at the moment, I am interested in a career in the pharmaceutical sector. However...

I am trying to find out what material that cowhide or vulcanized rubber will bounce off the most? (High school student working on a patent, so really not too experienced with materials engineering.)

Hello everyone, I have been reading this forums for a while, and today I made an account! Anyway, I am currently a first year Materials Engineering student. Whilst I know it is still very early to start thinking about postgrad, I realized that my interest lies within...

Hey there. I am making Carbon pellets using polyvinyl alcohol as a binder to help shape the pellets. I would like to measure the pellet's conductivity without being hindered or influence by the conductivity of the PVA. One way to do it is to heat the pellets to 300 degrees and evaporate the PVA...

Question is as follows: We have a single crystal of Al in a tensile tester. WE are applying a tensile stress, [δ][/Ψ] perpendicular to the 212 plane and we have found that slip has occurred. What is the shear stress that produced the slip? not sure how to proceed, first thought was use the...

So, i am trying to decide between materials science or engineering, i understand the difference, and i am preferring engineering due to the better career perspective, specially that i am from a country where research isn't their first priority, but i am still very interesting in research and...

Do you guys know a low-cost low-threshold optical beam limiter, with cost somewhere ~$100. Or if you know certain method to fabricate such. I would be greatful if you could include links and/or references. I am still noob in photonics so I am only familiar with a beam limiter that blocks the...

Hi everyone, I need advice. I'm in a difficult situation right now. I'm living in a third world country and universities are few and far between. There is one near me that has a handful of careers, including two engineering types: "materials" and informatics. The rest of the options are social...

Homework Statement For a crystalline metal material - Elastic modulus E - Poisson ratio v - A table with test data of stresses vs. total strains, from a monotonic uniaxial tension test, which generates a stress-strain curve. How would you use this data to find the corresponding pure shear...

This is the book that is required for my materials science II class but I can't find this book, I can't even find the contents so I can find a similar book. Do you know any?

I got a B.S. in Mechanical Engineering and I am now doing a PhD in Nanotechnology in which I am synthesizing a nanomaterial. Someone just told me that nanotechnology is more like mechanical engineering and materials engineering than any other thing. Based on my work I can see the relationship...

1. To carry out a materials selection exercise for a military/surveillance portable infrared imager tripod. The exercise will be carried out by means of any legal and valid technique possible and applicable, including (but not withstanding) techniques described in lectures, textbooks &...

I am an undergrad student studying mechanical engineering at the University of Malta. Stumbled across this forum whilst doing some research & decided to sign up! For anyone that can post suggestions I'm carrying out a material selection exercise for the legs of an infrared imager tripod :) All...

Long post, read the TL;DR if you please! Hi everybody, first post here. Probably should have asked this much earlier, but I didn't find this site till just a few minutes ago. I'm a senior studying materials science and engineering, I'm planning to stay another year for a master's degree in...

I am an student of Materials engineering I'm 4th semester. I have always wanted to develop airplanes (I grew up close to an airport). I know for some articles on internet that Mechanical engineering is closely related to aerospace engineering. Over the 4th semesters in materials engineering I...

Hello, I need some help trying to decide my future degree. Any comments would be appreciated! My History: I want to dedicate my career innovating Electrochemical technologies (Fuel Cells, Batteries, Solar Cells, etc...). Before entering college, I originally applied as a "Chemical...

A tie rod of max strength and minimum mass performance index Max strength - τ= 2T/πr³ Min mass- P=t^(2/3)/p I have been asked to explain how the performance index is affected by (i) safety factor (ii) changing the objective to minimum cost Any help would be greatly appreciated...

I recently graduated from NUST, Pakistan completing my Bachelors in Materials Engineering. I've applied to several industries within and outside Pakistan but so far the response has been disappointing. I've been confused regarding where to start. There are a couple of questions I want to ask...

I'm torn between the two options, and I would appreciate it if someone with experience could help me contrast materials science with materials engineering. From what I've heard, materials science ultimately leads towards research, and development of new material. Materials Engineers, on...

I've been doing some research on majors and have narrowed my interests down to something involving a mixture of chemistry and math, possibly physics as well. From what I have found Chemical Engineering and Materials Science and Engineering seem to be closest to my ideal mix, though the...

I recently sent in my application for the materials engineering program at McGill University. I was all set on this career path but doubt is beginning to set in. Friends and family have been telling me that materials engineering is a dead-end, that the jobs are few, and growth minuscule. They...

Background info: This is for a trebuchet I plan on building. Obviously lighter is better especially for the throwing arm which is why I need your help in figuring out that problem, so I can get it as light as possible without it having even a remote chance of failing. If there's information...

Dear Kind and Knowledgeable Contributors, I am a graduate student in my first year debating between completing the rest of my PhD. program in Chemical Engineering or Materials Science and Engineering. My university allows me to switch into either field. I believe I am equally capable in...

What comes after materials engineering PhD? Somebody I know has recently started a PhD in materials engineering in a decent (top 20) engineering school. He is mostly passionate about his work and is focusing on ceramics research. Recently he has started sharing with me his fears about not being...

Homework Statement hey guys, I've got an assignment and its asking me to explain why some materials to have the same toughness value, but quite differnt fracture toughness values? i really don't understand wats the difference between toughness and fracture toughness? any help would be...

Or does it depend on which area of condensed physics one is specializing in?

hi everbody.. i graduated form metallurgy and metarials engineering.. ı want to do my master degree..l've been having trouble choosing the field.. i m intersted in carbon fibers about textile.. but ı didnt take any class for this material.. so what u think carbon fibers ın textile will be...

I'm interested in chemistry right now, even though I haven't taken a chemistry course in two years and my school would not allow me to take first semester chemistry for credit again because I have taken it in high school at another college. Now I am thinking of whether do chemistry or materials...

Currently, I'm an undergraduate majoring in Physics in America, and I want to get my masters in materials engineering in Israel (which works on the European education system--aaack!) Does anyone have any ideas what sort of pre-requisites I'll need? By the time I graduate I will have taken...

Hi there, This may be a very basic question, but I have almost no knowledge of chemistry, unfortunately! Homework Statement Beryllium (Be) is a HCP metal with an atomic weight of 9, an atomic radius of 0.112nm and a density of 1850kg/m^3. Calculate its c/a ratio given that Avogadro's Number...

Can someone recommend a book to use in lieu of "Engineering Materials and Their Applications" Flinn 4e? Table of contents: http://www.wiley.com/WileyCDA/WileyTitle/productCd-0471125083,descCd-tableOfContents.html"

I'm studying at Physics ,but I am interested in materials engineering,and I want to learn more about M.M.E.in the world. :confused: thanks, maria