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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 31,070
Hi, I am trying to understand some more on composite materials and i have a question. Let's say i have two materials...
Apr3-11 09:42 PM
2 1,574
Dear All, Currently we have changed from our epoxy tooling (molds) to aluminium tooling to obtain more accuracy in...
Mar1-09 07:37 AM
0 1,701
Hi, Sorry for the semi-book here I am working on a project where I am mixing h-BN nanoparticles into a polymer...
Apr9-14 06:14 PM
2 858
Dear everyone As opposed to a bonded magnet being magnet powder "glued" together with e.g. epoxy and which is...
Apr29-11 01:38 PM
2 3,548
Could anybody advise the compressibility of Diesel fuel at 10 degrees Celsius? Thanks Filippo
Feb25-08 12:23 PM
4 11,110
Is it true that after we compress foam for quite a long time it is not goes back to the initial volume, in others...
Dec30-10 06:50 AM
0 1,432
I was just curious if it would be possible to compress fine iron powder into a solid puck without applying any heat or...
Mar29-13 11:25 AM
3 1,425
Hello, Does anyone know how to calculate the cross sectional compressive strength of a piece of pipe? I know as you...
Mar15-11 07:53 AM
3 3,302
Product Compression. I am currently doing some work on compression. I know the flowrate in and the pressure and...
Jan28-09 07:26 AM
1 2,821
The Computational Materials Science Group at NREL performs state-of-the-art theoretical calculations to develop the...
Apr20-06 11:48 AM
1 2,907
Dear all, I would like to simulate a HID lamp. This lamp is operated at a pressure of 2.8 atm and has a core...
Sep20-13 02:59 AM
0 1,174
Hello, How do I instruct COMSOL to calculate the gradient of swelling pressure P which is given as P=E(C-Ceqm)...
Mar5-10 10:54 AM
0 2,291
I am having issues with modeling an absorption column in COMSOL 3.5a. I have entered the reaction rate (which I am...
Jan28-12 09:33 PM
0 2,252
Hey everyone, I have been using COMSOL to study oxygen diffusion through a membrane coupled with a surface reaction...
Oct13-07 04:58 AM
1 3,381
Hi! I am trying to model the electrodeposition of MnO2 in COMSOL. I have 3 equations for 3 charged species involved...
Apr5-10 06:37 AM
0 2,258
I am trying to model intrinsic stress of some thin film heterostructures. As I am not a modeler but an...
Nov14-08 03:41 AM
5 3,734
Hi everybody, newbie here...:smile: im doing a modelling work with comsol and have a problem of solving using...
Jan5-08 10:51 AM
3 5,908
Hi, Is there way to run MATLAB with COMSOL functions directly instead of connecting to matlab server from COMSOL. ...
Apr1-09 05:01 AM
0 3,347
Hello everyone, Does anybody use Comsol multiphysics here? I am trying to model the electric double layer. If you...
Apr17-12 03:39 AM
20 24,173
Dear Friends, I am totally new in Comsol Multiphysics and I can't manage with following problem: I have to...
Dec14-10 04:27 PM
0 1,150
Hi everybody, I'm a new user of Comsol Multiphysics and Comsol script. And I'm working on a conduction problem,...
Oct19-09 03:10 PM
2 6,017
Hello all, I have a small problem with COMSOL. I am trying to use the particle tracing feature, more precisely I...
Dec13-11 03:10 AM
1 2,394
hi all, i'm a newbie here. i'm currently encountering problems trying to construct and simulate a 3-d t-junction. ...
Mar6-08 01:06 PM
1 1,741
Hello, Now I am working on the convection and diffusion problem with chemical reactions. The question is simple...
Dec11-08 02:56 PM
5 10,943
Hi every one I want to model a transient heat transfer with time dependent Dirichlet boundary condition and ...
Aug12-12 12:33 PM
0 2,094
Hi, all, I am starting with calculating scattering cross sections of metallic nanoparticles. I have some doubt about...
Oct25-11 11:00 AM
38 33,437
Hello, I am working on Al-17Si alloys. I have done some castings and in micro-structure I saw formation of...
Nov12-11 08:36 AM
2 1,832
A question for anyone that has the ability to answer: I understand the difference between Frenkel and Schottky...
Mar27-05 06:18 PM
2 4,660
Can someone explain the concept of recrystallization in metals to me? I'm having some trouble understanding what...
Apr19-05 08:32 PM
1 3,404
Hi, Who could evaluate my conception of heat storage with Na2-SO4? Idea: Dry Na2-SO4 is moistered with water...
Nov29-10 04:33 PM
6 2,042
Hello experts in diffusion, I am having some trouble understanding some concepts in calculating diffusion. ...
May3-11 12:26 PM
2 3,110
can anyone give me a problem and exercise about the methode dreux of Concrete i want to practice it as well before the...
Jul8-10 07:35 AM
kompheak vic
2 2,693
When determining the appropriate condenser rating ( i.e the condenser temp. difference, TD = Tc - Tci), why is it...
Mar1-10 11:28 AM
0 2,595
Why is it when the conditions are adiabatic and reversible about a turbine, the assumption is its isentropic?
Nov18-06 12:09 AM
Andrew Mason
4 2,421
HI, i guess this might have been answered prieviously. Can someone tell me the solution for transient conduction in...
Mar29-12 07:36 AM
0 1,835
Hello, I want to study transparent alumina and zirconia and I wonder if they have the same conductivity and heat...
Jun1-10 06:42 AM
0 1,677
According to this Periodic Table (sorted by conductivity), sodium's conductivity is .21 on the chart, and Iron's is...
Mar9-08 12:01 PM
0 1,345
Hi, im doing an experiment involving activated carbon and I need to know if activated carbon has a high level of...
Feb16-10 07:41 PM
4 6,830
Does somebody know if stabilized zirconia (a compound of zirconium oxide and yttrium oxide) is electrically conductive...
Sep30-09 05:20 AM
Gideon Y
0 1,906
Hi everyone- I'm a junior at U. Penn doing a research project on thermal expansion in complex perovskites. I'm...
Jul27-04 12:50 AM
2 4,213

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