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 does a Perovskite structure appear on the 180 cm band of Ca doped LaInO3 in raman spectra?

This structure was synthesised by the solid state reaction method.

03 April 2014 6,343 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

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 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

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

How can you bring two structures together to create an adhesive bond in LAMMPS?

I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....

01 March 2021 3,325 2 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

What is the indication of the absence of peaks in Methanol electrooxidation CV curves ?

I have several question regarding the MOR; hope anyone help me better understand. 1- in CV using (KOH+MEOH) what is the indication of absence of the redox peaks? shouldn't they exist as a sign...

28 February 2021 4,851 8 View