What is the etch reagent for showing grain boundaries of Al matrix in deformed Al A390 alloy?

I tried some etch reagents like Keller, weck and HF but I couldn't see the grain boundaries of Al matrix.

07 August 2017 2,786 2 View

What are the suitable solvents for the ABS and PLA?

01 February 2015 5,063 7 View

What is the color of Al2O3 particles in an Al matrix composite in an image from a SEM?

06 July 2014 8,031 21 View

How can I disperse Al2O3 powder in molten Al A356 in compo-casting method?

Al2O3 particles don't have wettability with molten Al. They float on the surface of the molten without any change in structure of particles.

31 December 2013 4,970 7 View

Is it necessary to do heat treatment Al2O3 particles in inert gas to improve wettability of Al2O3 powder in molten Al ( compo-casting method )?

I want to know that i can do heat treatment Al2O3 particles ( 900 deg for 2 hrs ) without inert gas ? because i don't have this instruments for inert gas in the furnace.

31 December 2013 4,102 6 View

How can we inject Mg powder into molten Al in compo-casting method?

I'm working on MMCs with Al2O3 reinforcing particles in Al matrix. In articles it is mentioned that for better wettability of Al2O3 with molten Al it's effective to add Mg powder. How can I avoid...

31 December 2013 346 1 View

Why do Al2O3 particles not disperse in molten Al A356 matrix?

I did several experiments for dispersion of Al2O3 particles in molten Al A356 matrix but I couldn't catch any results, heat treatment of Al2O3 in 900 deg for 2 hrs and another experiment in 400...

31 December 2013 6,832 5 View

How could we dissolute Al2O3 particles in Al A356 molten?

According to articles I've added 5 percent alumina to molten (aluminum) but the amount of dissolution were low and it were exposed a lot of powders on the surface of the molten. I can't...

11 December 2013 520 8 View

How I can install catia V5R21 in Windows 8.1?

I've tried more than once but I can't install that. Does anyone have an idea why this keep happening?

10 November 2013 7,095 8 View

Does chemical reaction occur between steel and aluminum molten? If yes, how much is it? How can the amount of reaction be reduced?

I chose the steel for impeller. Production aluminum matrix composite reinforced with ceramic particles by stir casting.

08 September 2013 9,105 8 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 View