11 Questions 86 Answers 0 Followers
Questions related from Mohammed M. Obeid
Dear respected RG members, Recently, we tried to prepare Ni doped MgO nanoparticles using co-precipitation method. The XRD pattern of pure MgO-NPs is going well with five peaks (20-80 degree). We...
21 January 2019 6,164 7 View
Dear respected RG members, I am doing Mulliken population analysis of Cobalt (Co) doped MgO lattice (rocksalt) using CASTEP code (ultrasoft pseudopotential). I found some strange data as...
16 June 2018 7,650 7 View
Dear experts I used GGA-PBE function to calculate the band gap of CuAl2O4 without spin polarized and without Hubbard value. The calculated value is 3.2 eV. The experimental band gap of...
06 April 2018 1,869 6 View
Dear Experts, I am trying to get information about stacking fault and dislocation based on TEM image. In the attached figure, I process the image using FFT implemented in digital micrograph DM....
19 February 2018 1,377 6 View
Dear experts, I am trying to study the affect of Zinc doped BeO, as far as I know, beryllium oxide have a large band gap about 10 eV, while ZnO have 3.3 eV, both of them crystallize in wurtzite...
23 January 2018 6,954 4 View
dear experts, in the attachment you will find pictures of two materials powder. first picture is wollastonite, where most of the peaks have a V shape in the tip and also the noise of background...
25 July 2017 6,210 7 View
I have a ceramic material with a cylindrical shape sintered at high Temp. , I am trying to minimize the preferred orientation of this specimen during x-ray diffraction. unfortunately, we do not...
02 June 2017 2,925 3 View
I am looking for step by step procedure to find the crystallite size and microstrain by warren-averbach using xpowder and how can we interpret the plots. is this method able to estimate the...
23 February 2017 1,057 4 View
I am looking for coupling agent that give a good dispersion of the filler in polymeric matrix and a good bonding strength between the filler and the matrix
30 December 2016 8,927 3 View
I have stadium stairs made of concrete, and i need to pick an adhesive material that give a good bonding strength and can resist some environmental factors such as hot and cold weather without...
06 October 2016 4,560 9 View
I would like to synthesize acicular wollastonite by solid state method, please if you have suggestions about using this method and how I can use it, and if there is any kind of mineralizer that...
27 September 2014 1,463 3 View
