Abstract
Multi-angle energy-dispersive X-ray diffraction studies and white-beam X-ray radiography were conducted with a cylindrically shaped (1 mm diameter and 0.7 mm high) high-boron-content borosilicate glass sample (17.6% B2O3) to a pressure of 13.7 GPa using a Paris-Edinburgh (PE) press at Beamline 16-BM-B, HPCAT of the Advanced Photon Source. The measured structure factor S(q) to large q = 19 Å−1 is used to determine information about the internuclear bond distances between various species of atoms within the glass sample. Sample pressure was determined with gold as a pressure standard. The sample height as measured by radiography showed an overall uniaxial compression of 22.5% at 13.7 GPa with 10.6% permanent compaction after decompression to ambient conditions. The reduced pair distribution function G(r) was extracted and Si–O, O–O and Si–Si bond distances were measured as a function of pressure. Raman spectroscopy of the pressure recovered sample as compared to starting material showed blue-shift and changes in intensity and widths of Raman bands associated with silicate and four-coordinated boron.
Original language | English |
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Pages (from-to) | 233-243 |
Number of pages | 11 |
Journal | High Pressure Research |
Volume | 37 |
Issue number | 2 |
DOIs | |
State | Published - Apr 3 2017 |
Funding
The authors acknowledge support from the US Army Research Office under grant no. W911NF-15-1-0614 through the University of Tennessee–Knoxville. Kathryn Ham is supported by the Carnegie DOE Alliance Center (CDAC) under grant number DE-NA002006. Portions of this work were performed at HPCAT (Sector 16), Advanced Photon Source (APS), Argonne National Laboratory. HPCAT operations are supported by DOE-NNSA under award no. DE-NA0001974 and DOE-BES under award no. DE-FG02-99ER45775, with partial instrumentation funding by NSF. APS is supported by DOE-BES, under Contract No. DE-AC02-06CH11357.
Funders | Funder number |
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Carnegie DOE Alliance Center | DE-NA002006 |
National Science Foundation | DE-AC02-06CH11357 |
Army Research Office | W911NF-15-1-0614 |
Basic Energy Sciences | DE-FG02-99ER45775 |
National Nuclear Security Administration | DE-NA0001974 |
Argonne National Laboratory | |
University of Tennessee |
Keywords
- Borosilicate glass
- Paris-Edinburgh cell
- X-ray diffraction
- high pressure