Could you please find the attached image and let me know if the presented data can show any weathering in the glass. Based on my understanding, the glass in the structure of my materials remained intact as the bump in the XRD test results is stable while the aggregates are subjecting to weathering conditions (4m, 4Y, 10Y, 15Y are denoting 4 months, 4 years, 10 years, and 15 years of weathering of the same source of andesite materials).
I was wondering if you could let me what can be interpreted from the pick of weathered materials around 20 degrees (4.5 Angstrom). Can it be related to any clay materials or any sign of weathering?
Dear Professor Kenneth M Towe
The materials are sourced from an Andesite quarry.
Samples are oriented on 2.54 cm slides that were prepared after three stages of pre-treatment procedure to isolate clay-sized particles. I presented the XRD results on air-dried samples. I also have the XRD test results for sample which are glycolated at 60 degree of Celsius for 20 hours and the heated sample as well (45 minutes at 550 degree of Celsius). I can provide them in the case of need.
Experiments were run using a PANalytical Empyrean X-ray diffractometer operating at 45 kV and 40 mA. The diffractometer employs a Cu K-alpha radiation (Kα1/Kα2 = 0.5) with a 1.5406 Å wavelength (Kα1) and has a graphite monochromator with a PIXcel Detector. Fresh bulk materials scans were run at a 2θ angle from 4 to 70°, with a 0.013° step size and an integrated 100 s dwell time.
Thank you for your time.
- Badges
- Science method
- Similar topics
- Methodology
- Crystallography
- X-ray Diffraction