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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
chemisttree
0 31,416
My chemical engineering is a little rusty after 25 years and I could use a little help with this real world problem....
Y 09:33 AM
SteamKing
2 306
I need a formula for deriving the required material thickness for an acrylic panel. The project will involve an...
Y 08:57 AM
AlephZero
1 107
Hey guys, I've been doing a lot of research looking for a fluid that has a high expansion ratio that does not leave...
Sep17-14 07:28 AM
Blibbler
1 165
I want to deposit a layer of indium with a thickness of 10-100 microns on a metal bar. What would be cheap method for...
Sep16-14 11:39 AM
christopher.s
5 454
How Nernst effect modifies Hall voltage?
Sep16-14 08:28 AM
beman
0 138
Hello, Lets say I have 5nm thin film of Au and 10nm thin film of Ag. What's the Ag composition in %At (after...
Sep16-14 05:24 AM
Baluncore
3 498
When looking at the cage or structure used to carry materials into an oven for the annealing process, what material...
Sep16-14 01:08 AM
theOrange
4 347
I want to do research in polymers, and would like to build somewhat of a knowledge base before committing to a...
Sep15-14 05:39 PM
spectastic
2 208
Hello, I noticed, when deriving rate laws, the assumption is that the reaction is happening in a batch reactor....
Sep15-14 05:08 AM
Maylis
0 182
Hello, In class, my professor said that in a CSTR, the reaction rate is constant throughout a well mixed CSTR. He...
Sep13-14 06:32 AM
Chestermiller
3 388
Hello, I have been working on a very interesting problem out of Fogler's Chemical Reaction Engineering. I have...
Sep11-14 07:39 PM
Chestermiller
10 684
Hi Everybody, I'm interested in learning what the freezing temperature of brass might be - at what point would it...
Sep11-14 01:03 PM
AlephZero
3 337
Hi, I wonder if there is a material or paint/dye that would change color when exposed to air? Ideally, it should...
Sep10-14 04:39 PM
Borek
5 486
How are superalloys produced.... I'm dealing with cobalt based alloy What are the process taken to produce...
Sep9-14 03:13 AM
ry2ncz
2 400
Hello, Does anyone know of any free software that will allow me to easily create chemical process flow diagrams,...
Sep8-14 04:56 AM
Fenske
4 1,566
I need to know a realistic minimum biaxial tension per unit length - in N/m - for the surface of a membrane which is...
Sep8-14 01:45 AM
pitchtwit
2 355
In our electrolysis of brine, Cl2 & H2 are produced as gaseous products along with aqueous NaOH. In this scenario I...
Sep7-14 11:17 PM
Greg Bernhardt
1 381
Hi all, I'm looking to electroplate a copper layer on top of anodized aluminum. Type II (sulfuric acid) was used to...
Sep6-14 11:07 AM
phinds
3 425
I'm building a sun cover for my open air atrium. Dimension is 8x8 ft. I'm building with clear cedar(ver expensive). ...
Sep4-14 12:08 PM
Atrium
4 374
Hello, Suppose A and B are continuously added into a tank, and exit stream consists of A,B,C, and D. I am a little...
Sep2-14 01:43 PM
Chestermiller
7 402
I'm looking to create a very small expandable package to be filled with a very small amount of a volatile material at...
Sep2-14 11:34 AM
mfb
1 312
I need to find the velocity within a pipe , I know the flow rate and diameter Flow rate =0.01 Diameter =90mm ...
Sep1-14 12:04 AM
JazzyJones
5 499
i need help with a process of producing super phosphate when given the raw materials clean compressed air and calcium...
Aug31-14 04:59 PM
Astronuc
1 357
I know that sulphide ore are roasted while carbonate ore are calcinated. What will happen if we roast carbonate...
Aug30-14 09:39 PM
ajayguhan
1 349
I am looking for a way to electroplate paper with out disintegrating the paper. Is there a conductive "paint" that I...
Aug29-14 09:58 AM
Matcon
33 8,604
I'm trying to convert a fine powder into hard granules (1mm - 3mm dia) & was trying to use a Fluidized Bed Dryer to...
Aug29-14 09:49 AM
Matcon
3 3,228
Dear mates: I'm looking for a reference of the chemical engineerin problems: heat transfer unit operation,...
Aug28-14 10:04 PM
Greg Bernhardt
1 485
If steel alloy having either pearlitic or bainitic microstructures is heated to, and left at, a temperature below the...
Aug28-14 11:07 AM
ajayguhan
1 489
Hello all, I know Barium Titanate is a common ceramic dielectric material. However, the methods of production...
Aug27-14 09:14 AM
Greg Bernhardt
1 491
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
Kevineo
2 351
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
256bits
3 604
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
sadben
2 460
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
1 531
During the cooling of a liquid, if no impurity of site of nuclearation, an appreciable solidification will begin only...
Aug21-14 03:06 AM
DrClaude
2 506
To prevent grain boundary sliding so that creep is less likely to occur, usually engineers would design components of...
Aug20-14 04:26 AM
kelvin490
2 477
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
Baluncore
2 551
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
1 511
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
Warpspeed13
4 827
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
Baluncore
1 465
For some systems, discrete intermediate compounds rather than solid solutions may be found on the phase diagram, and...
Aug16-14 07:06 PM
Astronuc
1 495

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