High pressure forms of BPO4 and BAsO4; quartz analogues
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چکیده
منابع مشابه
consequence analysis of the leakage, ignition and explosion during high pressure sour gas injection process to the oil reservoir
there is no doubt that human being needs to become integrated with industry and industry needs to be progressed, daily. on the other hand, serious events in industrial units specially in oil industries has been shown that such damages and events are industry related ones. the consequence of such events and damages which resulted in chemical and poisoned explosions and loss of life and property ...
Metamorphic evolution of high-pressure Quartz Schists in the Chadegan metamorphic complex, Sanandaj-Sirjan zone, Iran
The Chadegan metamorphic complex is a WNW-ESE- trending antiformal structure located in Sanandaj-Sirjan structural zone, Iran.The inner core of the structure is made of orthogneiss, containing eclogitic lenses. Schists and marbles lie structurally above theorthogneiss and crop out in the external limbs of the antiformal dome. Two main deformational episodes have been documented in theschists an...
متن کاملHIGH-PRESSURE CRYSTAL CHEMISTRY AND AMORPHIZATION OF e-QUARTZ
Single-crystal X-ray diffraction experiments on e-quartz at pressures to 15 GPa reveal structural instabilities that result in its gradual transition to an amorphous state. With increasing pressure the average Si-O distance ( ~ 1.61 + 0.01/~) and S i O 4 tetrahedral volume (,,~2.14 ___ 0.02.~ 3) remain constant. Compression of e-quartz results from a dramatic decrease in Si-O-Si angle and corre...
متن کاملHigh-pressure elasticity of alpha-quartz: instability and ferroelastic transition
The single-crystal elastic moduli of alpha-quartz were measured to above 20 GPa in a diamond-anvil cell by Brillouin spectroscopy. The behavior of the elastic moduli indicates that the high-pressure phase transition in quartz is ferroelastic in nature and is driven by softening of C44 through one of the Born stability criteria. The trends in elastic moduli confirm theoretical predictions, but t...
متن کاملHigh Accuracy MEMS Pressure Sensor Based on Quartz Crystal Resonator
Beijing Research Institute of Telemetry, Beijing 100000, China; [email protected] (C.Z.); [email protected] (D.X.H.); [email protected] (X.F.J.); [email protected] (S.M.Z.); [email protected] (J.B.Z.); [email protected] (M.M.W.); [email protected] (W.B.L.); [email protected] (Y.B.G.) * Correspondence: [email protected]; Tel.: +86-10-6819-8271 † Presented at the Eurosensors 2017 Conference, Paris, ...
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ژورنال
عنوان ژورنال: Acta Crystallographica
سال: 1959
ISSN: 0365-110X
DOI: 10.1107/s0365110x59002365