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Materials & Chemical Engineering

- Properties of matter and its applications. Metal Production, Fabrication, Distillation, Corrosion
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Jan16-12 Greg Bernhardt
Illegal/Dangerous Activities: Explicit "how to" discussions of illegal and/or dangerous activities, or posts...
Jul31-07 05:01 PM
0 31,077
Dear mates: I'm looking for a reference of the chemical engineerin problems: heat transfer unit operation,...
Y 10:04 PM
Greg Bernhardt
1 250
I'm building a sun cover for my open air atrium. Dimension is 8x8 ft. I'm building with clear cedar(ver expensive). ...
Y 06:36 PM
0 85
If steel alloy having either pearlitic or bainitic microstructures is heated to, and left at, a temperature below the...
Y 11:07 AM
1 247
I know that sulphide ore are roasted while carbonate ore are calcinated. What will happen if we roast carbonate...
Y 10:35 AM
0 81
I need to find the velocity within a pipe , I know the flow rate and diameter Flow rate =0.01 Diameter =90mm ...
Aug27-14 08:38 PM
4 181
Hello all, I know Barium Titanate is a common ceramic dielectric material. However, the methods of production...
Aug27-14 09:14 AM
Greg Bernhardt
1 252
Hi everyone, I've got an idea I'm trying to work out but I'm having trouble finding out about a few things. Firstly,...
Aug27-14 06:30 AM
2 116
Hello All, I'm currently testing a product for environmental test but i don't know what test do i conduct for this...
Aug25-14 11:43 PM
3 357
i'm trying to model the combustion of a pressurized gas (nitrous oxide) inside of a paraffin ring. What I'm trying to...
Aug21-14 11:26 AM
2 252
I have a question about micrograph of steel. In eutectoid steel, the pearlite exists as grains, within each colony...
Aug21-14 11:08 AM
Greg Bernhardt
1 302
During the cooling of a liquid, if no impurity of site of nuclearation, an appreciable solidification will begin only...
Aug21-14 03:06 AM
2 298
To prevent grain boundary sliding so that creep is less likely to occur, usually engineers would design components of...
Aug20-14 04:26 AM
2 264
Hi All, I would like to ask if what supplier's fabricate Low Coefficient of Thermal Expansion (CTE) glass tubing...
Aug20-14 12:42 AM
2 335
I have been looking on the web but I can't seem to find a textbook answer that describes the difference between...
Aug19-14 09:07 PM
Greg Bernhardt
1 280
Ok so I need to get a 3foot stump out of concrete without damaging the concrete. It's at that terrible stage where...
Aug18-14 10:58 AM
4 564
I often enjoyed how when you shape an object with clay and blast it with a furnace, you would be able to turn the soft...
Aug18-14 01:39 AM
1 256
For some systems, discrete intermediate compounds rather than solid solutions may be found on the phase diagram, and...
Aug16-14 07:06 PM
1 271
Hey guys, i am here to try pick some brains. I am en electronic engineer who is currently playing with some projects...
Aug16-14 04:11 AM
6 339
I know that graphene is a far more superb conductor than copper, but I'm trying to compare their weight difference. I...
Aug15-14 11:14 PM
1 268
Hello, Lets say I have 5nm thin film of Au and 10nm thin film of Ag. What's the Ag composition in %At (after...
Aug14-14 09:19 PM
1 264
Shot peening is a process of inducing RESIDUAL COMPRESSIVE STRESS on the surface layer of metal parts. When shooting...
Aug13-14 01:56 AM
6 378
Hi all, I have an idea for a project whereby I there would be an electromagnet pulling on a metal weight through...
Aug12-14 05:12 AM
2 888
Hi, I am looking for a material that molds/gets shape with hand at room temperature and does not separate! Does such...
Aug11-14 04:50 AM
4 474
I want to pump energy into a chemical species to increase its reaction cross section with another. Typically...
Aug11-14 02:56 AM
13 615
hi friends, I am going to program a double pipe heat exchanger designer software and I need to every detail on heat...
Aug9-14 06:56 PM
2 2,210
How can scientists determine,calculate or understand that in the universe hydrogen is the most abundunt element as...
Aug6-14 09:26 PM
2 535
Folks, It's been a while since I've done calculations like this so I was wondering if someone can help me calculate...
Aug5-14 04:01 PM
1 439
So I was reading that Osmium will break down into a poison oxide gas if it is heated in the presence of air. If...
Aug3-14 10:09 AM
2 551
I have read there is a way to dissociate water without use of an electrolyte by means of high voltage that overcomes...
Aug2-14 02:29 PM
12 690
Hello every body, I'm from Vietnam. I have a question that : if we decrease the size of the grain of metal by heat...
Aug2-14 03:03 AM
6 7,665
Hello to all Experts in Adsorption Physics! Here is a research paper, stating that water adsorbed in a mineral called...
Jul31-14 09:15 AM
3 911
Hello all, Can somebody explain to me what PEC (proximity effect control) means in nanofabrication? Thanks :)
Jul29-14 02:11 PM
Greg Bernhardt
1 2,119
I'm developing a small product, And I need a material ( maybe a plastic ) for a metal part slide through. The material...
Jul28-14 01:24 AM
1 1,023
I have a heavy apparatus I am working on which needs to be mounted onto a plate (or some other support structure). ...
Jul25-14 09:17 AM
1 839
Hey guys, When you are shot with a gun you get hurt even if you're wearing kevlar. In some cases you even break...
Jul24-14 03:28 AM
14 4,048
Hello, I am trying to calculate the surface cooling rate from the sides of a round tin can using Rayleigh, Prandtl...
Jul18-14 11:14 PM
1 1,820
I'm designing a custom ultra stiff strut bar for a car. Achieving extreme stiffness usually adds a lot of weight, so I...
Jul16-14 03:07 AM
2 2,465
Why do things like grease, cheese, butter, jam, etc. stick to smooth surfaces like a butter knife or teflon? What are...
Jul14-14 06:47 PM
2 2,985
I am going to attempt to use a sheet of HDPE betwen a concrete footing and the base of a column to allow the column to...
Jul14-14 11:54 AM
2 2,306
Hi everyone, I need some specific mechanical properties of A516 carbon steel, but as yet I am unable to find it...
Jul13-14 11:41 PM
3 3,292

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