Strength of alpha quartz: New results from high pressure in-situ deformation experiments

We present a suite of 13 uniaxial deformation experiments on Arkansas novaculite conducted in D-DIA apparati, located at the Advanced Photon Source (6BMB) and the National Synchrotron Light Source (X17B2).  The experiments were monitored with in-situ synchrotron x-rays and conducted at temperatures ranging from 25 °C to 1199 °C, pressures between 1.39 GPa and 3.1 GPa, and strain rates between 1 × 10 -5 s -1 and 1 × 10 -6 s -1. Macroscopic sample strain ranges from 3% to 24%. d-spacings from the (101), (110), (200), (201), and (112) lattice planes produce lattice strain up to ~5%.  The files here include diffraction data, radiographic images, and instrument logs tracking furnace parameters, oil pressures in the main ram and DDIA rams, and a variety of positional sensors for the DDIA apparatus.  Combined with information published in the associated manuscript, the diffraction data may be reanalyzed as part of future studies examining the diffraction beha..., , # Data from: Strength of alpha quartz: New results from high pressure in-situ deformation experiments

Dataset DOI: [10.5061/dryad.rbnzs7hqv](10.5061/dryad.rbnzs7hqv)

## Description of the data and file structure

All experiments used Arkansas novaculite from the Ouachita Mountains, purchased from Ward’s Science. D-DIA experiments SiO2_11, 15, 16, 17, 21, 30, 31, & 35 were conducted at the National Synchrotron Light Source at Brookhaven National Laboratory with the D-DIA installed in hutch X17B2. Experiments SiO2_65 S1-5 were conducted using the D-DIA installed in hutch 6BMB at the Argonne National Lab, Advanced Photon Source (APS).

After cold compression, samples were annealed at high temperature to produce a hydrostatic stress state prior to loading at rates of between 1.0 x 10 ^-5^ to 1 x 10 ^-6^ per second. For experiment SiO2_65, which used multiple deformation steps, the rams were retracted after each deformation experiment to produce a hydrostatic state in the sample before the..., ,