Material Characterization

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Questions related to Material Characterization

How to calculate the grain boundary plane orientation?

Given the orientation matrix, for example: 0.284, 0.921, -0.265, -0.720, 0.388, 0.575, 0.633, 0.027, 0.773, and the angles of grain boundary in the XY plane (α= 166o) and in the XZ plane (β =...

27 July 2017 9,592 4 View

Is the 'Combined Flakiness and Elongation Index' of aggregate is the numerical sum of separate elongation index and flakiness index?

It is mentioned in the test procedure (BIS/MoRTH) that while doing combined flakiness and elongation test, the flaky aggregates should be separated initially from the test sample, and the rest is...

27 July 2017 6,679 3 View

How NaNO2 reacts in acidic conditions such as HCl?

I want to know the machanism

23 July 2017 6,742 2 View

Experimental errors in Z-scan measurement

Dear colleagues, I have read many papers on Z-Scan measurements of material, I see that the error is in the range of 25 to 40%. Some authors claim that the error is up to 50%. And the...

07 July 2017 3,303 26 View

Nonlinear thermal optical effects in in organic

Dear colleagues, Recently, we have seen many studies on third order nonlinear optical effects and optical limitting in organic with CW laser. Some researchers wonder whether these effects are...

07 July 2017 5,384 13 View

What are the difference(s) in Inconel 718 conforming to two different specifications? One is for aerospace and another for oil and gas industries.

AMS 5596K and AMS 5663. What is the equivalent of ISO 15156 for aerospace application?

07 July 2017 5,053 4 View

How to calculate the grain boundary plane orientation?

Given the orientation matrix, for example: 0.284, 0.921, -0.265, -0.720, 0.388, 0.575, 0.633, 0.027, 0.773, and the angles of grain boundary in the XY plane (α= 166o) and in the XZ plane (β =...

07 July 2017 8,373 5 View

What are the difference(s) in Inconel 718 conforming to two different specifications? One is for aerospace and another for oil and gas industries.

AMS 5596K and AMS 5663. What is the equivalent of ISO 15156 for aerospace application?

05 July 2017 5,767 3 View

Is Youngs Modulus for Compression (UCS) and indirect tensile test (Brazilian Test) same for one kind of rock?

For rock , Is there any difference in compression and tensile youngs modulus?

05 July 2017 2,890 3 View

Su-8 spin coating onto COC wafer

hello, I have some gold electrodes onto my COC (topas) substrate and I want to isolate them and just let the surface of the electrodes free (no the connections): We tried SU-8 as passivative...

27 June 2017 1,954 3 View

What is bright region between crack growth and post tearing?

Dear All, We carry out fracture test of Zr alloys. To distinguish crack growth during fracture test, we carry out heat tinting at 300 oC for 20 min at no load and then samples are torn apart to...

16 June 2017 4,847 3 View

What is the role of calcination in imprignation of tio2 on activated carbon fiber?

Calcination causes phase transformation of TiO2 from anatase to rutile at 700 oC but generally calcination in imprignation is done in between 400-600 oC. Bond formation can happen in hydrothermal...

06 June 2017 8,435 1 View

Su-8 spin coating onto COC wafer

hello, I have some gold electrodes onto my COC (topas) substrate and I want to isolate them and just let the surface of the electrodes free (no the connections): We tried SU-8 as passivative...

06 June 2017 2,952 3 View

Is there any open source software available for EBSD analysis in Linux?

Dear Researchers, I want to analyze my EBSD data in Linux. I know there are some open source codes like as ATOM, but I tried and these codes do not work in Linux. I also tried to run MTEX file in...

06 June 2017 5,767 4 View

Why is does the Sulfur Reading from a Spark-OES and an ICP-OES not match?

I'm currently working on a new lead based alloy. I'm planning to use a Spark-OES for quick turnaround analysis and an ICP-OES for verification. I did a few test runs on the ICP-OES using a few of...

20 April 2017 1,691 4 View

How photoluminescence study can give the depth dependent radiative recombination profile in the absorber of solar cell?

Using white light source (one sun) I am doing photoluminescense (PL) study with solar cells. How I can get the depth dependent radiative recombination profile using PL spectra.

21 March 2017 5,107 0 View

How to calculate buckling load of CT specimen?

I have carried out fracture test of Zr-2.5Nb pressure tube material in axial (crack growth along axial direction of the tube) and transverse direction of the pressure tube using CT specimen. The...

10 March 2017 9,274 4 View

How indirect band gap of silicon changes into direct band gap at nanoscale?

As silicon has an indirect band gap at bulk.

02 March 2017 4,608 3 View

What does the slope of strain hardening v/s stress curve tell?

I have three different experimental data of strain hardening v/s strain and strain hardening v/s stress. For comparison, which one to use? What does the slope tell in both cases?

02 February 2017 1,813 1 View

Can we find Li percentage by using wds or eds?

i want to find Li distribution in my grains by doing line scan.

02 February 2017 9,390 2 View

How to convert discrete NLS to continues ?

I need the analytical solution for collision of solitons.

22 January 2017 6,959 1 View

What the difference between Thermionic Trap-Assisted Tunneling (TTAT) and direct tunneling (DT) mechanisms HEMT Transistor ?

Hi , i'm looking for leakage current mechanisms and i found the TTAT and the DT , what the difference between the TTAT and DT , are there other mechanisms of leakage current ? thank you

18 January 2017 5,496 0 View

I need to know the reason of why having a big value of intermix layer between absorber and substrate (glass) cause a better MSE?

I am working on Cu2ZnSnSe4 semiconductor thin film on glass substrate. The thickness of absorber is around 650 nm-720 nm. I roughened the back side of the substrate to suppress the effect of back...

02 January 2017 1,342 2 View

How to Obtain Pole Figures from Simulation Data?

I have the data concerning a simulated polycrystalline grain structure (the set of crystallographic directions). Each grain consists of minimum 1000 cells. I would like to obtain pole figures to...

01 January 2017 5,833 11 View

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