12 Questions 28 Answers 0 Followers
Questions related from Hadi Parsamehr
Dear all, I have the EXAFS data at 800'c that shows disorder phase but the E(ev)-Xµ(E) graph shows similar peak with the crystalline phase. Also, I seen in the in-situ XRD that at 800'c my...
11 November 2017 5,418 1 View
What kind of test can be done to understand how different viruses and bacteria act on the surface of different metallic surfaces? I need some way to develop a coating with biomedical applications...
07 July 2015 8,788 0 View
Dear All, I want to deposit TiN and TaN by Ti and Ta targets (magneto sputtering). I tried to fabricate it with different conditions of N2 gas during the sputtering and post annealing beside N2....
05 May 2015 1,194 10 View
Dear All. I have several samples that the percentage of each composition are difference but all of them has two different phases. i want to specified the percentages of each phase. does any one...
05 May 2015 5,915 5 View
Hi all, Does anyone know which metal or which alloy has a lower diffusion coefficient with a high melting point (at least 2000'C)? Or which material has less reaction with Fe, Cu and Al? Thanks!Parsa
04 April 2015 1,505 14 View
Dear all, I want to grow SiO2 on Stainless steel thin film by sputtering. After annealing, there is diffusion of the substrate to SiO2. I'd would like to ask if anyone has experience with this...
03 March 2015 5,172 5 View
Dear All, I have a sample, the composition is a mixture of Al-Cu-Fe. I need to use Argon gas or Fermi gas during annealing to avoid sublimation and oxidation. Which one is better? Also I should...
10 October 2014 6,324 8 View
Dear all, How can I calculate the best thickness for my samples? It means I can sputtering thick layer or Thin layer. Resistivity and conductivity is not important just i need to achieve to best...
10 October 2014 3,761 1 View
Dear All I have analyzed the quasicrystal i have prepared by xrd, but i'm not sure if the crystallization is correct. I know that we can check it via TEM or another method. May I ask about the...
09 September 2014 511 9 View
Hello everyone, I want to find the percentage of each elements in my thin film, the composition in my thin film is a mix of Al-Cu-Fe. I know, I can measuring by ICP-MS or XRF. but I have two...
08 August 2014 9,758 17 View
In quasicrystal, a different set of tilling can form the quasicrystal. However, most of the mathematical theory is trying to explain the quasicrystal tilling from one starting point and not from a...
01 January 1970 6,782 1 View
I have a complex metallic Alloy (Al-Cu-Fe) sample that is amorphous (solid and liquid) at 800'C which crystallization happens during the cooling process at 650'C. Can anyone help me to explain...
01 January 1970 1,448 4 View
