Plastic deformation of quartz at room temperature: A Vickers Nano‐Indentation Test

Masuda, Toshiaki; Hiraga, Takehiko; Ikei, Hideaki; Kanda, Hiroyuki; Kugimiya, Yasuo; Akizuki, Mizuhiko

doi:10.1029/1999gl008460

Cited by 21 publications

(13 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kailer et al (1999) reported that high-density silica glasses were produced during a Vickers indentation test of α-quartz under ambient conditions. The findings of Ferguson et al (1987) and Masuda et al (2000) also support the occurrence of amorphization at the indentation. However, because the peaks in the spectra of the present study are clearly defined (Fig.…”

Section: Relative Intensitysupporting

confidence: 82%

Ultra-high residual compressive stress (>2 GPa) in a very small volume (<1 m3) of indented quartz

Masuda

Miyake

Enami

2011

American Mineralogist

View full text Add to dashboard Cite

Indentation testing of natural single-crystal α-quartz parallel to the crystallographic c axis, using a triangular pyramidal diamond indenter at a maximum load of 500 mN, produced a very small residual volume of less than 1 µm 3 in which α-quartz is highly stressed. Laser Raman microspectroscopy across the indentation at room temperature and pressure revealed a shift in the Raman bands, interpreted to reflect the residual stress field generated within the α-quartz. Based on the observed Raman shift, we identified a steep gradient in the residual non-hydrostatic stress field after complete unloading in quartz near the impression formed by indentation. At the center of the indentation, the maximum compressive stress and tensile stress were inferred to be higher than 2.2 and 0.1 GPa, respectively.

show abstract

Section: Relative Intensitysupporting

confidence: 82%

Ultra-high residual compressive stress (>2 GPa) in a very small volume (<1 m3) of indented quartz

Masuda

Miyake

Enami

2011

American Mineralogist

View full text Add to dashboard Cite

show abstract

“…While the normal contact stress at a frictional interface is, to the first order, independent of the externally applied effective normal stress [ Bowden and Tabor , 1964; Greenwood and Williamson , 1966], things are very different for contacts in sand compaction experiments. As indicated by the large flattened grain contacts in the postexperimental samples, the contacts are much larger than expected for elastic deformation (Hertzian contacts) or quasi‐instantaneous plastic yielding at high contact stress [e.g., Dieterich and Kilgore , 1994; Masuda et al , 2000]. This seems to hold throughout the duration of the compaction measurement at a given target applied pressure because a considerable amount of time under hydrothermal conditions had elapsed before they set the pressure at the target level.…”

Section: Comparison Of Experiments With Be Theory: Is It Pressure Solmentioning

confidence: 89%

Frictional healing of quartz gouge under hydrothermal conditions: 2. Quantitative interpretation with a physical model

Nakatani

Scholz

2004

J. Geophys. Res.

View full text Add to dashboard Cite

[1] The companion paper by Nakatani and Scholz [2004] shows that a hydrothermal frictional healing mechanism results from local solution transfer. Here we evaluate this mechanism with the model of Brechet and Estrin [1994], which assumes that the healing occurs by stress-driven asperity creep. The absence of a clear temperature dependence of the healing parameter b in the narrow tested range of 100-200°C is consistent with the model's prediction. The analysis also indicates that the mechanism involves a high stress assist parameter Ws = 200 kJ/mol, which is consistent with the contact stress being the indentation hardness, s $ 10 GPa, and the activation volume W being the molar volume, both of which are reasonable. For this to be consistent with the observed temperature enhanced kinetics of healing also requires that the activation energy exceed 200 kJ/mol. This is much higher than the 20-70 kJ/mol known for low contact stress pressure solution. The analysis of several previously published studies of hydrothermal healing of hard silicates yielded the same results. Hence, if the underlying process is stress driven, it must have a different mechanism at high stress than at low stress. Alternatively, a solution transfer mechanism driven by something other than stress could be the underlying mechanism, but this is inconsistent with other aspects of our experimental results. On the other hand, the same analysis of phenomena that are independently inferred to proceed under relatively low contact stress yielded the parameter values consistent with low-stress pressure solution.

show abstract

“…The analysis assumes circular contacts of radius a slide on a flat surface, with the contact area determined by the applied load and yield pressure P m of the material. We assume P m = 8 GPa for quartz [ Masuda et al , 2000], and a contact radius of 10 μm (a typical laboratory value for D c ).…”

Section: Methodsmentioning

confidence: 99%

Low frictional strength of quartz rocks at subseismic slip rates

Goldsby

Tullis

2002

Geophysical Research Letters

252

198

View full text Add to dashboard Cite

[1] Laboratory experiments on rocks at low sliding velocity typically yield values of the friction coefficient of 0.6 -0.85. Here we demonstrate that an extraordinary decrease in friction coefficient accompanies sliding of 'room dry' quartz rocks at rates faster than in most laboratory experiments, but slower than seismic slip rates. In some cases, the friction coefficient decreases from lowspeed values by more than a factor of 3. This extraordinary weakening likely results from the formation of finely comminuted, amorphous, wet material on the sliding surface.

show abstract

Plastic deformation of quartz at room temperature: A Vickers Nano‐Indentation Test

Cited by 21 publications

References 13 publications

Ultra-high residual compressive stress (>2 GPa) in a very small volume (<1 m3) of indented quartz

Ultra-high residual compressive stress (>2 GPa) in a very small volume (<1 m3) of indented quartz

Frictional healing of quartz gouge under hydrothermal conditions: 2. Quantitative interpretation with a physical model

Low frictional strength of quartz rocks at subseismic slip rates

Contact Info

Product

Resources

About