Can we quantitatively identify level of ordering in a solid amorphous phase to explain its ionic conductivity with temperature?

05 June 2016 8,382 6 View

Can we quantitatively estimate the volume fraction of crystalline phase (SrSiO3) and glassy phase (Na2Si2O5) by Raman analysis in synthesized sample?

We have synthesized Na doped SrSiO3 using solid state reaction method. Since XRD indicate only crystalline phase and there is possibility of glassy phase (Na2Si2O5) formation along with...

31 December 2014 3,994 5 View

How can I evaluate a Raman mode (386cm-1) for LaInO3 at 386cm-1 is symmetric or antisymmetric stretching vibration?

I have synthesized Ca-doped LaInO3 system. From the Raman analysis, I found the highest intensity peak at 386cm-1 which is due to In-O-In streching mode. How can I know that it is a symmetric or...

11 December 2014 9,467 14 View

Can you suggest the most compatible electrodes (anode +cathode) for LSGM solid electrolyte for SOFC applications?

I am planning to work on compatibility and interaction study on LSGM with different electrode systems. Please suggest the suitable electrode materials and review papers on this.

08 September 2014 236 1 View

How much R-value is acceptable for Rietveld refinement in a polycrystalline solid?

I have synthesized a polycrystalline solid using a solid state reaction method and refined the XRD data using FULLPROOF software.

05 June 2014 7,563 4 View

In XRD, why does the sharpness of (200) and (020) planes in LaGaO3 suddenly diminish with Ca doping?

CaO is doped at La site in LaGaO3 using solid state reaction method. During powder XRD analysis, the undoped sample (LaGaO3) was matched with ICDD card 01-089-7833 and it consist of sharp peaks...

04 May 2014 3,421 8 View

Why is there a difference between the initial value of conductivity in DC measurement and conductivity value during AC measurement?

I am trying to measure DC and AC conductivity of Ca doped LaInO3 samples and wish to separate the electronic from the ionic contribution. I assume that initial value of conductivity in DC...

04 May 2014 5,141 4 View

Does gold sputtering in electrolyte samples (disc-shaped) interfere during AC conductivity measurements?

I used gold sputtering (to make electrode contacts) in Ca doped LaInO3 samples for AC conductivity measurement from room temperature to 800C. Does it interfere with the conductivity response of my...

04 May 2014 2,300 2 View

Why is red shift in raman bands from 180-300cm-1 obtained when Ca is doped in LaInO3 perovskite?

Ca doped LaInO3 samples were synthesized using solid state reaction method. 5mol%Ca shows maximum red shift(3cm-1) for 180cm-1 band. With further doping, lesser red shift is obtained. Also, The...

03 April 2014 9,256 3 View

How does one theoretically calculate the amount of dopant for single phase in perovskites?

I wish to theoretically calculate the amount of dopant that can maintain the solid solubility of perovskite system. AS single phase is necessary for solid electrolyte applications.

31 December 2013 8,005 1 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

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 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

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View