Articles with "pressure high" as a keyword



Crystal chemistry of Eu-bearing tuite synthesized at high-pressure and high-temperature conditions

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Published in 2018 at "Physics and Chemistry of Minerals"

DOI: 10.1007/s00269-018-0994-6

Abstract: Tuite, γ-Ca3(PO4)2, is a potential host for rare-earth elements in the deep mantle. Eu-bearing tuite single crystals with chemical formulas of Ca2.93Eu0.04(PO4)2 and Ca2.88Eu0.07Na0.06(PO4)2 were synthesized at 16 GPa and 1600 °C, and their structures were… read more here.

Keywords: temperature; pressure high; chemistry; bearing tuite ... See more keywords

Electrical Resistivity Measurements of Manganite La0.95Sr0.05MnO3 Under Uniaxial Pressure at High Temperature

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Published in 2018 at "Journal of Superconductivity and Novel Magnetism"

DOI: 10.1007/s10948-018-4969-0

Abstract: We designed and fabricated a new uniaxial pressure device for doing resistivity measurements under uniaxial pressure at a high-temperature region (300 K–800 K). This uniaxial pressure device was tested with La0.95Sr0.05MnO3 and we have measured the resistivity… read more here.

Keywords: resistivity measurements; temperature; pressure high; uniaxial pressure ... See more keywords
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High pressure high temperature synthesis of highly boron doped diamond microparticles and porous electrodes for electrochemical applications

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Published in 2021 at "Carbon"

DOI: 10.1016/j.carbon.2020.09.038

Abstract: Abstract High pressure high temperature (HPHT) synthesis of crystallographically well-defined boron doped diamond (BDD) microparticles, suitable for electrochemical applications and using the lowest P and T (5.5 GPa and 1200 °C) growth conditions to date, is reported.… read more here.

Keywords: microscopy; boron; pressure high; high pressure ... See more keywords

Ion-exchange properties of High Pressure High Temperature synthetic diamond

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Published in 2017 at "Diamond and Related Materials"

DOI: 10.1016/j.diamond.2017.02.022

Abstract: The adsorption and chromatographic properties of microparticulated diamond (1–2 μm and 4–6 μm fractions) from high pressure and high temperature synthesis (HPHT diamond) are investigated, with a focus on their cation-exchange capacity. Several adsorbents were prepared, either… read more here.

Keywords: pressure high; ion exchange; high temperature; high pressure ... See more keywords
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Electrical transport and thermoelectric properties of PbTe1−xIx synthesized by high pressure and high temperature

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Published in 2017 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2016.11.253

Abstract: Abstract N-type thermoelectric materials PbTe doped with iodine (PbTe 1−x I x , x = 0.0001, 0.0003, 0.0007 and 0.001) were synthesized by high pressure and high temperature method (HPHT). Thermoelectric properties of PbTe 1−x I x… read more here.

Keywords: thermoelectric properties; synthesized high; temperature; pressure high ... See more keywords
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Optimization of thermoelectric properties of Al-doped Zn1−xAlxO under high pressure and high temperature

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Published in 2021 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2021.161200

Abstract: Abstract ZnO has excellent electrical properties such as high conductivity (σ) and Seebeck coefficient (S) that are important for its thermoelectric properties and have provided the basis for obtaining improved ZnO-based thermoelectric materials by doping.… read more here.

Keywords: electrical properties; high pressure; pressure high; temperature ... See more keywords
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High-Pressure and High-Temperature Synthesis and In Situ High-Pressure Synchrotron X-ray Diffraction Study of HfSi2.

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Published in 2021 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.1c01681

Abstract: High-quality hafnium disilicide (HfSi2) has been successfully synthesized using a high-pressure and high-temperature (HPHT) method at 3 GPa and 1573 K in a DS6 × 10 MN cubic press. The modest synthesis temperature is aided… read more here.

Keywords: situ high; pressure high; high temperature; high pressure ... See more keywords

Preparation of High-Performance Mn-Doped SnTe Materials at High Pressure and High Temperature.

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Published in 2024 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.3c03991

Abstract: SnTe is an environmentally friendly medium-temperature thermoelectric material, but its inherent low power factor (PF) and high lattice thermal conductivity severely limit its application. In this study, based on the fact that Mn doping can… read more here.

Keywords: temperature; pressure high; snte materials; high temperature ... See more keywords

Structural Phase Transition and Disproportionation of MnF3 Under High Pressure and High Temperature.

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Published in 2024 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.4c02948

Abstract: Materials that once suffered under high-pressure and high-temperature conditions often display unusual phenomena that challenge traditional understanding. MnF3, an intermediate valence state Mn-F compound, exhibits a distorted octahedral crystal structure influenced by the Jahn-Teller effect.… read more here.

Keywords: pressure; pressure high; high temperature; phase ... See more keywords

Synthesis of Ni–B Compounds by High-Pressure and High-Temperature Method

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Published in 2023 at "ACS Omega"

DOI: 10.1021/acsomega.2c07523

Abstract: Nickel borides are promising multifunctional materials for high hardness and excellent properties in catalysis and magnetism. However, it is still a blank of intrinsic properties in Ni–B compounds, because crystallization of the single phases of… read more here.

Keywords: high pressure; high temperature; synthesis; pressure high ... See more keywords

Protective Mechanisms of Siloxane-Modified Epoxy Novolac Coatings at High-Pressure, High-Temperature Conditions

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Published in 2024 at "ACS Omega"

DOI: 10.1021/acsomega.4c02986

Abstract: In the context of high-pressure, high-temperature (HPHT) conditions resembling those in the oil and gas industry, the performance of epoxy-siloxane hybrid coatings is investigated. Neat amine-cured epoxy novolac (EN) coatings exhibit drawbacks under these conditions,… read more here.

Keywords: temperature; epoxy novolac; pressure high; high temperature ... See more keywords