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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 30,964
Hello to everyone that reads this, I have to replace an old compressor with a new one. The trick is that i need to...
Feb6-14 10:00 PM
russ_watters
1 927
Hello everyone! I'm happy to have found this forum, I hope you would help me. I need to obtain rocking curves from...
Feb6-14 05:48 AM
Baluncore
1 1,034
The two kettles contain a boiling aqueous solution. They must be cooled to room temp as fast as possible (otherwise...
Feb4-14 09:59 PM
Wellesley
5 979
Hi to everyone, actually i 'm conducted an experiment in fabrication of nanotubes layer in metal by anodization that...
Jan28-14 07:52 AM
dacarls
4 2,565
Dear friends I have tried to electroetch 1050 aluminum alloy by 5ml phosphoric acid + 95ml H2o under 1 to 10 volts....
Jan28-14 05:13 AM
Lok
1 1,131
Hi all, As suggested by the title, i wanted to know as to why creep is a function of time. Since for any component...
Jan27-14 12:52 AM
koolraj09
5 1,387
I'm aware that you "dope" them with phosphorous for n-type and boron for p-type (I'm aware other materials can be used...
Jan25-14 08:11 AM
litup
1 1,137
Can you give me please some nanomaterials (or nanoparticles) examples (which can I find very easy and very cheap, like...
Jan19-14 05:21 PM
lawrence
0 1,138
I recently built a 3d printer that extrudes PLA or Polylactic acid for the material. When printing on a glass bed the...
Jan19-14 06:14 AM
Lok
1 2,255
Interstellar travel is mostly a though experiment at this stage (although NASA will be launching the solar sail...
Jan17-14 07:52 AM
Astronuc
1 1,191
Is there any materials that is elastically solid (ductile that can be shaped into thin wires) at low temperatures but...
Jan13-14 01:53 PM
RocketSci5KN
7 1,616
Hi, I'm a secondary school student from India and I am currently doing a group project to develop an 'eco-town' as...
Jan9-14 02:31 PM
pikpobedy
17 6,034
Can anyone explain me why the thermal boundary layer develops faster for viscous fluids? I would just say it would...
Jan7-14 04:16 PM
Chestermiller
22 2,735
Does introducing small amount of hydrogen and oxygen with gasoline into an internal combustion engine make the sensor...
Jan5-14 04:47 PM
copracr
4 1,578
Are Chemical engineers like applied chemists? Or are they more like mechanical or electrical engineers using their...
Jan4-14 05:46 PM
nst.john
8 1,960
Hi Guys, First post here. I'm just wondering if anyone could lend a helping hand in the following derivation. It is...
Jan2-14 06:04 AM
jpmann
1 1,376
Hi, In a stirred vessels it can occur that a vortex is present which is unwanted because it decreases the mixing....
Dec31-13 08:16 AM
engineerings
0 1,369
Hi, I've been reading PF threads for a long time but never really had a question to ask.. until recently. I am...
Dec30-13 06:28 PM
Alkim
3 1,412
There is a recent project I have been working on that requires the use of Isobutane as a propellant/solvent, so I have...
Dec27-13 09:13 PM
etudiant
5 2,252
Hi everyone, can anybody suggest a characterization technique for a coating layer. i have a polymer substrate,...
Dec18-13 02:16 PM
Alkim
1 1,423
Hi I want to do DSC analyses of P3HT PCBM film (active layer of the solar cell), but I'm not sure how to obtain...
Dec16-13 11:13 PM
Hyo X
1 1,518
I need help in below matter. During the classes on my college we used this type of testing stand with force gauges :...
Dec16-13 06:06 PM
SteamKing
1 1,394
Hello, I'm not sure if this is in the right section, but I figured chemical engineering would be best for this. I...
Dec13-13 04:48 PM
nst.john
2 1,551
So from the first law for a closed system, dU=dQ-dW=dQ-PdV From the second law, dS=dQ/T + Sgenerated (i.e....
Dec13-13 07:58 AM
DrDu
3 1,942
Hi Could anyone tell me the procedure for the cleaning ITO substrates for organic solar cells? This was my...
Dec10-13 08:28 AM
tufnatufna
2 1,751
Hi! I wonder what happened to fuel-cell technology. Is it so simple that hydrogen just couldn't be kept...
Dec8-13 08:10 PM
mheslep
63 48,213
We briefly got an intro to carbon nanotubes in our nanomaterials class, and the professor only briefly introduced...
Dec5-13 03:09 PM
miketout
1 1,607
Hello, I am interested in estimating/modelling the behavior of a rubber stud mount...
Dec4-13 05:30 PM
Damtranos
0 1,436
Hi everyone. Recently, I did (002) XRD scanning to get the rocking curve of a sample of GaN. From the measurement,...
Dec3-13 04:30 AM
zvz
1 3,495
Fluorescent tube lamp (FTL), in very simple words, produces light from excitation of atoms due to bombardments of...
Dec1-13 01:40 PM
Alkim
1 1,529
Hi, I found this forum while looking for a formula online and am hoping someone here can help me. I'm having chairs...
Nov30-13 09:39 AM
nvn
4 1,794
I have a difficult problem on my research exploration for math. I am modeling the convection currents of boiling...
Nov29-13 04:17 PM
Alkim
3 1,877
Hi, I am working with a scanning electron microscope with the SED and it works fine. I have tried on several...
Nov26-13 01:24 PM
nanopaxeko
2 1,857
Hi I am bit confused regarding the heating/calorific value of petrol (used for vehicle) extracted from crude oil...
Nov25-13 07:24 PM
etudiant
7 1,733
So the expression for Gibb's free energy is: dG = -SdT + VdP + μdN, Here, we see that the Gibb's free energy...
Nov24-13 04:22 PM
DrDu
4 2,411
Hi every one . I am trying to make nanocomposite and I need to solve nano Tio2 in water many paper said that it...
Nov20-13 02:48 PM
Alkim
4 1,697
I want to exchange my Au-citrate nanoparticle with two kinds of ligands :PEG-COOH and PEG-OH. Which one is suppose to...
Nov19-13 01:19 PM
Alkim
2 1,579
Does anyone know of where I can find any good free online video lectures of materials processing, environmental...
Nov16-13 02:51 PM
Barry Bonobo
0 1,446
Hi, I am trying to find out what material heat resistant washers are on a BBQ. that material looks like fiberglass and...
Nov15-13 02:37 PM
jedishrfu
2 1,846
In those days ice was transported from mountain regions to towns and cities, so that, for example, wealthy families...
Nov15-13 10:08 AM
rollingstein
15 2,473

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