Can we correlate the particle size and sample crystallinity?

Can we make the statement that If the crystallite size is higher than the sample is more crystalline?

07 August 2013 7,391 12 View

How pH value affects the morphology of samples prepared through sol-gel process?

We have synthesized two samples with different pH values and we got hexagonal and spherical shaped nanoparticles.

07 August 2013 9,927 5 View

How to calculate the lattice strain?

How can x-ray diffraction patterns be used to calculate the lattice strain?

07 August 2013 4,370 22 View

How Mn doping affect the magnetic properties of ZnO nanopowder?

Can Mn doping decrease the so called ferromagnetism in ZnO?

06 July 2013 7,999 4 View

What is the difference between micro Raman and FT Raman spectra?

Is there any restriction on recording range e. g. can micro Raman measure Raman shift below 200 cm-1?

06 July 2013 2,453 7 View

Is it possible that band gap of ZnO nanoparticles prepared through sol gel process may show a decrease on Co doping?

Here energy band gap is calculated with Tauc's relation using UV / Vis absorption data.

05 June 2013 4,883 3 View

XRD patterns of cobalt doped ZnO films show most intense reflection occurs at (002). Is it true for nanopowders of cobalt doped ZnO?

We have observed most intense peak at (101) for cobalt doped ZnO synthesized using sol gel process.

05 June 2013 6,895 8 View

How does Raman spectra of manganites films depend on substrates like MgO or LaAlO3?

We have grown thin films of Te doped LaMnO3 on LaAlO3 substrate and are interested to know the effect of the substrate on Raman spectra.

04 May 2013 9,102 2 View

Can we correlate the stress produced in ZnO host lattice due to Mn doping with Raman spectrum?

Generally we talk about stress in case of thin films but same is applied to nanoparticles too.

04 May 2013 7,624 4 View

How is the hysteresis loop related to doping in case of ZnO and TiO2 nanoparticles?

ZnO and TiO2 show little hysteresis loop which changes with doping.

04 May 2013 7,115 2 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

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

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 3 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