Results 21 to 30 of about 1,120,137 (290)
High Pressure Enhances the Growth Rate of the Thermophilic Archaebacterium Methanococcus thermolithotrophicus without Extending Its Temperature Range [PDF]
, 1988 Temperature and hydrostatic pressure are essential in determining the assemblage of species in their specific biotopes. To evaluate the effect of high pressure on the range of viability of thermophiles, the pressure and temperature dependence of the ...
Lüdemann, Hans-Dietrich +4 more
core +1 more source
Energies, 2021 Achieving zonal isolation along wellbores is essential for upholding the containment integrity of subsurface reservoirs and preventing fluid seepage to the environment.
Timotheus K. T. Wolterbeek +1 more
doaj +1 more source
Hydrogenation of Graphene by Reaction at High Pressure and High Temperature [PDF]
ACS Nano, 2015 The chemical reaction between hydrogen and purely sp(2)-bonded graphene to form graphene's purely sp(3)-bonded analogue, graphane, potentially allows the synthesis of a much wider variety of novel two-dimensional materials by opening a pathway to the application of conventional chemistry methods in graphene.
Smith, D +10 more
openaire +4 more sources
High pressure Raman study and phase transitions of KIO3 non-linear optical single crystals [PDF]
, 1998 Potassium iodate KIO3 single crystal samples have been studied under pressure up to 35 GPa at room temperature. Drastic spectral changes and phase transitions were observed. The first phase transition occurs at 5.
Zhou, F. +4 more
core +1 more source
Frontiers in Earth Science, 2022 Carbonate minerals as a dominant carbon host can be transported to the Earth’s deep interior via subduction of the oceanic lithosphere, and their physicochemical behavior potentially has a significant influence on the compositional heterogeneity and ...
Haiying Hu +6 more
doaj +1 more source
Synthesis of superhard 3D-polymeric C60 fullerites from rhombohedral 2D-polymer by high-pressure-high-temperature treatment [PDF]
, 2003 Rhombohedral C60 polymer was subjected to high-pressure-high-temperature treatment at P =13 GPa, T =620-1620 K. After quenching, crystalline and disordered structures with densities in the range of 2.1-2.9 g cm-1 were obtained.
Dubitsky, Gennadii A. +6 more
core +1 more source
Properties of nanostructured diamond-silicon carbide composites sintered by high pressure infiltration technique [PDF]
, 2004 A high-pressure silicon infiltration technique was applied to sinter diamond–SiC composites with different diamond crystal sizes. Composite samples were sintered at pressure 8 GPa and temperature 2170 K.
Dub, S. N. +8 more
core +1 more source
AIP Advances, 2016 The Raman spectroscopy of natural molybdenite powder was investigated at simultaneous conditions of high temperature and high pressure in a heatable diamond anvil cell (DAC), to obtain the temperature and pressure dependence of the main Raman vibrational
JianJun Jiang +4 more
doaj +1 more source
Block and malleable arsenopyrite hot-pressure sintering: applied implications
Journal of Materials Research and Technology, 2020 A hot-pressure technique was used to sinter block-shaped, malleable, and compact arsenopyrite, based on the purified natural material. The results show that 500 °C and 1.0 GPa are the optimum temperature and pressure conditions, while at temperatures ...
Kai Zheng +4 more
doaj +1 more source
Frontiers in Earth Science, 2022 It has been demonstrated that the matters in the earth’s interior are subjected to isotropic hydrostatic pressure and are also extensively superimposed by the differential stress.
Dongsheng Ren, Dongsheng Ren, Heping Li
doaj +1 more source