UNIFORM ELECTRICAL EXCITATION OF LARGE‐VOLUME HIGH‐PRESSURE NEAR‐SONIC CO2–N2–He FLOWSTREAM

1971 ◽  
Vol 18 (5) ◽  
pp. 194-197 ◽  
Author(s):  
Alan E. Hill
Keyword(s):  
High Pressure ◽  
Large Volume ◽  
Electrical Excitation

Acoustic detection of cracks in the anvil of a large-volume cubic high-pressure apparatus

2015 ◽  
Vol 86 (12) ◽  
pp. 124904 ◽  
Author(s):  
Zhaoli Yan ◽  
Bin Chen ◽  
Hao Tian ◽  
Xiaobin Cheng ◽  
Jun Yang
Keyword(s):  
High Pressure ◽  
Large Volume ◽  
Acoustic Detection ◽  
High Pressure Apparatus

Large-Volume $\hbox{N}_{2}$ Plasma Induced by Electron Beam at High Pressure

2013 ◽  
Vol 41 (3) ◽  
pp. 494-497 ◽  
Author(s):  
XueKai Pei ◽  
Peng Zhang ◽  
Kai Chen ◽  
XinPei Lu
Keyword(s):  
High Pressure ◽  
Electron Beam ◽  
Large Volume

New techniques for high pressure falling sphere viscosimetry in DIA-type large volume presses

2014 ◽  
Vol 34 (3) ◽  
pp. 345-354
Author(s):  
Hans J. Mueller ◽  
Felix Beckmann ◽  
David P. Dobson ◽  
Simon A. Hunt ◽  
Christian Lathe ◽  
...  
Keyword(s):  
High Pressure ◽  
Large Volume ◽  
New Techniques ◽  
Falling Sphere

scholarly journals Crystal structure of the high-P polymorph of Ca2B6O6(OH)10·2(H2O) (meyerhofferite)

2021 ◽  
Vol 77 (6) ◽  
Author(s):  
Davide Comboni ◽  
Tomasz Poreba ◽  
Francesco Pagliaro ◽  
Tommaso Battiston ◽  
Paolo Lotti ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Phase Transition ◽  
High Pressure ◽  
Large Volume ◽  
Atomic Scale ◽  
Deformation Mechanisms ◽  
X Ray Diffraction ◽  
X Ray ◽  
First Order ◽  
Structural Differences

The crystal structure of the high-pressure polymorph of meyerhofferite, ideally Ca2B6O6(OH)10·2(H2O), has been determined by means of single-crystal synchrotron X-ray diffraction data. Meyerhofferite undergoes a first-order isosymmetric phase transition to meyerhofferite-II, bracketed between 3.15 and 3.75 GPa, with a large volume discontinuity. The phase transition is marked by an increase in the coordination number of the boron B1 site, from III to IV, leading to a more interconnected and less compressible structure. The main structural differences between the two polymorphs and the P-induced deformation mechanisms at the atomic scale are discussed.

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