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Questions related from Ahmed Saeed Hassanien
I would like If it is possible to share the link which anyone can connect it and can download the ICDD Database software. Thank you in advance.
03 March 2018 2,707 0 View
What are the great differences between FESEM and TEM?? Is TEM essential to define the crystal lattice and crystal defects of the nanoparticles, or XRD is more accurate than TEM to define the same?
01 January 2018 1,731 6 View
Dear colleagues ... My great greetings ... Please, Could any one mention the web link to download the JCPDS software or to download the CD of PDF cards of inorganic materials. Thank you in advance.
05 May 2017 1,465 18 View
Is there a prefered orientation for the powder nanoparticles formation? Are there a probable defects may be occurred like those formed in case of the thin-film texture? Can XRD detect...
10 October 2016 1,332 2 View
Please, Can any one inform me if XRD can detect the different types of the crystalline imperfections ? What are the used software programs? are there free programs can determine these defects? If...
05 May 2016 6,157 4 View
I Suggest that RG should give a list for the most read articles which have been read through the ended week in each field. Where the article that records more reading may reflect its importance in...
04 April 2016 655 13 View
When preparing a ternary glassy system we resort to the phase diagram of that composition to know the probable percentage of its constituent elements and to know the probable regions of the...
02 February 2016 7,308 3 View
Vegard predicted to calculate theoretically the optical energy gap of crystalline systems for the III-V systems. Does this law valid to calculate the optical energy gap of glassy chalcogenides...
08 August 2015 4,845 3 View
The resistivity of an alloy should be between those of its components, or at least similar to them. But practically, it was found that, it was much higher than that of either component.
03 March 2015 6,797 10 View
the resistance of an disordered alloy is found so high and larger than the crystalline alloy of the same composition. What is the interpretation of this behaviour?
03 March 2015 600 8 View
It was found that the lattice parameters of the ternary chalcogenide network CdSSe were increased with increasing Se content instead of S. Do you have an explanation?
01 January 2015 6,266 7 View
By accurate calculations of the experimental data of the absorption coefficient, It was found that the obtained optical energy gap of chalcogenide amorphous compositions be produced as a result of...
01 January 2015 3,320 3 View
Does anyone have an accurate theoretical method to calculate the elastic module for any chalcogenide alloy?
01 January 2015 4,712 2 View
How can I calculate the atomic density of the ternary Cd50Se30S20 crystalline composition? Also, can I calculate the compactness of this composition. How?
12 December 2014 6,791 8 View
From this relation could you determine the refractive index (n) T = 4n / (n+1)2
12 December 2014 3,225 5 View
Also I want to know If the CHEMICAL BOND APPROACH TO THE STRUCTURES is related only for glasses or it can be applied for crystalline structures, too? Please can anyone help me to get a reference...
12 December 2014 6,566 2 View
