What is the relation K factor of Scherrer equation and the shape of particle?

The Scherrer equation, in X-ray diffraction and crystallography, is a formula that relates the size of sub-micrometre particles, or crystallites, in a solid to the broadening of a peak in a...

06 July 2018 7,008 1 View

Does GO has its functional groups on the surface or edge?

For graphene guys, I was wondering if the functional groups decorated the basal plane of graphene oxide or the edge? I would say that there are some of edge and other on the surface, please...

05 June 2018 2,992 0 View

What is the most worst catalyst for CVD graphene?

According to your experience, please advise me about the worst catalyst (substrate metals) can use to growth graphene via CVD?

01 February 2018 692 6 View

How can we measure the thickness of the thin film using the atomic force microscope?

I created some films of graphene oxide using spin coating technique and I want to know how we can measure the thickness of these films using atomic force microscopy experimentally, or from 2D/3D...

10 November 2017 9,569 3 View

Do anyone have the soft copy of JCPDS card No.75-1621?

08 September 2017 7,288 1 View

What is the optimal rpm of spin coating to get 10 nm Graphene oxide thin film ?

I want to use spin coating to make 10 nm of GO

05 June 2016 2,805 0 View

Which Graphite particle size is more suitable for producing graphene using Wet chemical method 20 or 150 Micrometer?

Graphene wet chemical method

01 February 2016 6,014 1 View

Can any help me to prepare 8 mol/L of Nitric acid?

01 January 1970 2,973 1 View

How can I tranfer Anodic aluminum oxide (AAO) layer from aluminum sheet in Electrochemistry to transparent Electrode?

I want to transfer Porous Anodic aluminum oxide (AAO) layer from aluminumthat has been carried by Electrochemistry to transperant electrode. with simple chemical approach.

01 January 1970 5,361 1 View

Is it necessary to deposit thin film on quartz to measure UV- transmission and absorption?

I was measuring UV-spectroscopy Transmission and absorption modes for thin film of graphene oxide on glass. and unfortunately no peaks have seen in results. I guess it's necessary to deposit thin...

01 January 1970 9,881 9 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

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

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 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

Which is the most efficient etching solution for nickel based alloys?

Which solution reveals the microstructure and features of nickel-based alloys?

02 March 2021 2,221 3 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View