I want to get the thermal expansion coefficient of each mineral in a rock using high-tempearture X-ray diffraction (XRD); how can we achieve that using TOPAS software, since there will be peak overlapping during the scan analysis.
I am currently studying the nanoindentation of solids; currently I can obtain the Young's modulus and hardness of the solid material. However, I wanna observer the deformation process (especially...
11 December 2018 2,742 2 View
Dear all, I have alpha-quartz powders and I did 3 hours XRD scan for these powders both at 30 degrees Celsius and 450 degrees Celsius (there exists no phase transformation at this temperature)....
06 July 2018 8,956 3 View
In rock engineering, what's the definition of void and what's the relationship between void and fracture? For example, if I adopt molecular dynamics simulation to simulate the void in rocks...
02 March 2018 8,467 0 View
In order to gain the thermodynamics, elasticity, phase transitions properties, the molecular dynamics simulation of rock minerals (say crystalline mineral) can be performed and in this process,...
01 February 2018 7,609 3 View
How to generate animation movies using OVITO (scientific data visualization and analysis software for atomistic simulation models)? I already performed the molecular dynamics simulation of...
01 February 2018 5,242 3 View
As a new beginner, how to learn the software LAMMPS (Large-scale Atomic/Molecular Massively Parallel Simulator) faster?
31 December 2017 3,064 0 View
The impact of degree of saturation on the mechanical and transport properties of clay are still open at microscale, I want to know how to characterize/represent the degree of saturation in...
11 December 2017 1,016 2 View
I read one article and it refers "clays display a significant buffer effect with regard to chemical perturbations. The thickness of the clay that is chemically perturbed by the disposal facility...
11 December 2017 9,648 1 View
Any idea/suggestion about using molecular dynamics simulation about transport and geomechanical fate of proppants?
11 December 2017 1,095 3 View
I wanna model the proppant placement in the hydraulic fracture using molecular dynamics, but I am the beginner of MD, I read some articles about the modelled shape of research object (mainly,...
11 December 2017 8,300 5 View
Require for Rietveld refinement in XRD.
08 August 2024 3,081 2 View
During low-temperature testing, new diffraction peaks that appear could be indicative of several phenomena. In one of our tests, we observed notable new peaks around 40° and 45° in a specific...
06 August 2024 726 3 View
I want to refine one XRD peak of my in-situ xrd but the background is never working good which ultimately fails the refinement. How to refine and adjust the background using GSAS-II
05 August 2024 5,291 2 View
How to calculate the molar proportions of the oxides from the XRF analyses?
02 August 2024 2,565 2 View
I fabricated Ti3C2Tx using concentrated HF 40%, I plot an XRD as attached image below.. please let to know if I obtained it or not.
02 August 2024 6,789 4 View
What information we can get from PXRD analysis other than from SCXRD analysis of a crystal ?
30 July 2024 6,261 4 View
I will be doing an XRD on a sample which is powdered in natured and is a hydrogenated compound. I would like to know how we can understand the individual components and components by using the...
28 July 2024 4,548 2 View
I'm working with a hydrogel sample and I'd like to perform XRD analysis. Can anyone offer guidance on preparing the hydrogel for the XRD instrument? Specifically, I'm unsure about the best method...
20 July 2024 3,611 4 View
Can we measure the 2θ variation within a 5-degree range on a Bruker D2 Phaser XRD machine? I have experienced problems with diffraction angles (2θ) below 10 degrees. Is this range within the...
13 July 2024 2,615 4 View
XRD analysis
08 July 2024 977 4 View