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Quartz‐to‐Quartz Direct Bonding [PDF]
Journal of The Electrochemical Society, 1999 Direct bonding of single crystalline quartz wafers is presented. By this straightforward technique, hermetical seals between quartz wafers can be formed.
Karin Hermansson +3 more
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Nanoscale Friction at the Quartz-Quartz/Kaolinite Interface
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2023International ...
Wei, Pengchang +5 more
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Silicon/quartz bonding and quartz deep RIE for the fabrication of quartz resonator structures
2008 3rd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, 2008In this paper, silicon/quartz bonding and quartz deep RIE (DRIE) processes have been developed to fabricate micromechanical quartz resonator structures. A low temperature (< 300degC), plasma-assisted silicon/quartz bonding condition that can provide the maximum bonding shear strength of 10 MPa has been experimentally constructed.
Hyoung-Kyoon Jung +4 more
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Proceedings of IEEE 48th Annual Symposium on Frequency Control, 2002
The outgassing of quartz crystal plates was measured with a high resolution mass spectrometer using thermal desorption techniques. As the quartz was heated from 40/spl deg/C to 1200/spl deg/C in a vacuum, the mass spectrometer identified several types of gases. The primary species that appeared were NH/sub 3/, OH, and H/sub 2/O.
R. Lareau +4 more
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The outgassing of quartz crystal plates was measured with a high resolution mass spectrometer using thermal desorption techniques. As the quartz was heated from 40/spl deg/C to 1200/spl deg/C in a vacuum, the mass spectrometer identified several types of gases. The primary species that appeared were NH/sub 3/, OH, and H/sub 2/O.
R. Lareau +4 more
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QUARTZ AND PNEUMOCONIOSIS IN COALMINERS
The Lancet, 1981In a routine survey of 623 miners in one colliery, 21 men, an unusually high number, showed radiological progression of simple pneumoconiosis in spite of generally low exposures to mixed coalmine dust. Comparison of the dust exposures of the 21 men with those of matched controls without pneumoconiosis showed highly significant differences in the ...
J.A. Dick +3 more
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International Geology Review, 1977
Electron microscopy was used to investigate scratches on cleaved synthetic quartz and amethyst. The transverse bands in a scratch are microcracks. When the hardness of the indenter is less than the hardness of the quartz, a formation of Dauphine microtwins is observed near the scratch.
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Electron microscopy was used to investigate scratches on cleaved synthetic quartz and amethyst. The transverse bands in a scratch are microcracks. When the hardness of the indenter is less than the hardness of the quartz, a formation of Dauphine microtwins is observed near the scratch.
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Nature, 1935
PYRITES (FeS2) in the form of small crystals and specks of a brassy-yellow colour may be found frequently in quartz. Four pieces of Brazilian quartz, containing pyrites inclusions, have now been found which are of unusual interest.
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PYRITES (FeS2) in the form of small crystals and specks of a brassy-yellow colour may be found frequently in quartz. Four pieces of Brazilian quartz, containing pyrites inclusions, have now been found which are of unusual interest.
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Geological Society of America Bulletin, 1964
The impurity content of quartz—substitutional elements plus foreign inclusions—is different for different rocks and may be sufficiently distinctive to allow correlation within the same igneous or metamorphic rock mass and distinction between different quartz-bearing rocks. An application to provenance is suggested.
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The impurity content of quartz—substitutional elements plus foreign inclusions—is different for different rocks and may be sufficiently distinctive to allow correlation within the same igneous or metamorphic rock mass and distinction between different quartz-bearing rocks. An application to provenance is suggested.
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2013
The drive to improve the performance of clocks inevitably led on a path from large lumbering mechanical clock mechanisms with long periods of oscillation to increasingly smaller mechanisms that run at much higher frequency. The hair spring-balance wheel clocks evolved over the eighteenth and nineteenth centuries into mechanical instruments of such ...
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The drive to improve the performance of clocks inevitably led on a path from large lumbering mechanical clock mechanisms with long periods of oscillation to increasingly smaller mechanisms that run at much higher frequency. The hair spring-balance wheel clocks evolved over the eighteenth and nineteenth centuries into mechanical instruments of such ...
openaire +2 more sources