The strength of fused silica

@article{Proctor1967TheSO,
  title={The strength of fused silica},
  author={B. A. Proctor and I. Whitney and J. W. Johnson},
  journal={Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences},
  year={1967},
  volume={297},
  pages={534 - 557}
}
Silica fibres and flame polished rods having strengths around 600 Kg/mm2 were prepared and the preparation conditions studied. The effects on fibre strengths of atmospheric and temperature changes, and of variations in rate of stressing and previous heat treatment, were extensively investigated. From the results obtained a comprehensive qualitative picture of the strength of silica has been deduced; it is found to be strongly dependent on the testing conditions and to extend over the range 280… 
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References

SHOWING 1-5 OF 5 REFERENCES
The strengths of flame-polished sapphire crystals
Abstract Single crystals of sapphire, 1 mm in diameter and having bending strengths up to 700 Kg/mm2, have been prepared by flame polishing and a technique for locating fracture origins in high
The strength of glass fibres
Abstract Evidence from some simple experiments suggesting a source of important stress raising flaws in the surface of glass fibres is described. It is believed that these flaws are the major ones
Strength and Static Fatigue of Abraded Glass Under Controlled Ambient Conditions: I, General Concepts and Apparatus
An extensive experimental study of the factors affecting the tensile strength and static fatigue of bulk glass has been conducted. To minimize the effects of past history of the specimens, all
Near infrared characterization of water and hydroxyl groups on silica surfaces
Infrared absorption spectroscopy m the 1–3 micron region has been employed to investigate the behavior of surface hydroxyl groups and adsorbed water molecules during hydration and dehydration of