Equation of State of TiN at High Pressures and Temperatures: A Possible Host for Nitrogen in Planetary Mantles

Daviau, Kierstin; Fischer, R. A.; Brennan, Matthew C.; Dong, Junjie; Suer, Terry‐Ann; Couper, Samantha; Meng, Yue; Prakapenka, Vitali B.

doi:10.1029/2020jb020074

Cited by 3 publications

(3 citation statements)

References 73 publications

(159 reference statements)

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“…Experiments performed in diamond anvil cells [ 102 ] demonstrated that Fe–N compounds can be stable at extremely high temperatures and pressures corresponding to the conditions of Earth's core. Other experiments also demonstrated the stability of titanium nitride, iron nitride and carbonitride from deep upper mantle to core pressure [ 103–105 ]. These results indicate that nitrogen is siderophile at high P – T and reducing conditions, that nitrogen can be stored as nitride in Earth's deep mantle, and that nitrogen is a potential light element in Earth's core (Fig.…”

Section: Earth's Nitrogen Budget and Speciationmentioning

confidence: 99%

The origin and evolution of Earth's nitrogen

2024

National Science Review

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Nitrogen is a vital element for life on Earth. Its cycling between the surface (atmosphere + crust) and the mantle has a profound influence on the atmosphere and climate. However, our understanding of the origin and evolution of Earth's nitrogen is still incomplete. This review presents an overview of the current understanding of Earth's nitrogen budget and the isotope composition of different reservoirs, laboratory constraints on deep nitrogen geochemistry, and our understanding of the origin of Earth's nitrogen and the deep nitrogen cycle through plate subduction and volcanism. The Earth may have acquired its nitrogen heterogeneously during the main accretion phase, initially from reduced, enstatite-chondrite-like impactors, and subsequently from increasingly oxidized impactors and minimal CI-chondrite-like materials. Like Earth's surface, the mantle and core are also significant nitrogen reservoirs. The nitrogen abundance and isotope composition of these three reservoirs may have been fundamentally established during the main accretion phase and have been insignificantly modified afterwards by the deep nitrogen cycle, although there is a net nitrogen ingassing into Earth's mantle in modern subduction zones. However, it is estimated that the early atmosphere of Earth may have contained ∼1.4 times the present-day atmospheric nitrogen (PAN), with ∼0.4 PAN being sequestered into the crust via biotic nitrogen fixation. In order to gain a better understanding of the origin and evolution of Earth's nitrogen, directions for future research are suggested.

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Section: Earth's Nitrogen Budget and Speciationmentioning

confidence: 99%

The origin and evolution of Earth's nitrogen

2024

National Science Review

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“…Using generalized gradient approximation [1] high-pressure effects on lattice volume, Bulk modulus, and phonon density of state have been studied up to the pressure of 50Gpa. Using diamond anvil cell and X-ray diffraction method the EoS and stability of this compound have been measured up to the pressure of nearly 70 GPa and temperature of 2700 K [4] and up to pressure of 94GPa [5]. Based on the first principle approximation, the elastic constants, Debye temperature, and bulk modulus of this material, were investigated at high temperatures as well as high pressures [6].…”

Section: Introductionmentioning

confidence: 99%

High-Pressure Calibration TiN Equation of State

KAREEM,

UONİS,

ALSAQA

2023

International Journal of Thermodynamics

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High pressure is becoming an interesting area of research for originating vital properties in crystalline solids. In the present study, the pressure equation of the state of TiN was investigated by employing various equations of state (EoS) presented in the literature, such as Dodson EoS, Barden EOS, Birch-Murnaghan (B-M) EoS. The EoSs were processed to find the high-pressure effects on the characterizations of TiN such as volume compression ratio, bulk modulus B, Grüneisen parameter, and phonon frequency spectrum. It was shown that a gigantic pressure results in a significant reduction in the volume of the TiN material, and the volume compression ratio reduction, is almost the same for the existing equations of state and the comparative literature results up to a pressure of 80 GPa. The maximum pressure difference is observed to be 4.85 GPa. over the entire pressure of 120GPa. Increasing the bulk modulus with high pressure was expected by the present EoSs, and up to the pressure of about 60 GPa, all curves of bulk modulus are matched with each other. Eventually, a fair comparison has been made between the present results and the first principle approximation along with the generalized gradient approximation method in which a perfect agreement was observed. Finally, the feasibility of TiN EoS as a standard pressure calibration was demonstrated.

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“…Its ceramic has a tendency to resist corrosion. Spreading barriers is one of its uses, as is in some superconducting devices [1]. Due to TiN's useful characteristics, such as their high hardness, superior corrosion resistance, heat resistance, and great wear resistance, among others, titanium nitride (TiN) coatings have a wide range of uses [2].…”

Section: Introductionmentioning

confidence: 99%

Study the change of some physical and chemical properties of TiN under high pressure

Sultan¹,

Al-Saqa²,

AL-FARİS³

2023

Tikrit J. Pure Sci.

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The pressure equation of state of Titanium nitrate TiN was investigated in the current work using two equations of state (EOS) from the literature, including the Barden EOS and the Birch-Murnaghan EOS, whereas the Bardeen EOS, which is based on interstellar atomic potentials, and the Birch-Murnaghan EOS, which is based on the solid mechanics notion of finite strain. The EOSs were processed to identify the impacts of high pressure on the bulk modulus B, Debye temperature θD and lattice constant a, which are characterizations of TiN. Ultimately, a fair comparison of the current findings with the first principle approximation and the generalized gradient approximation approach was conducted, and a perfect agreement was found. It was demonstrated that TiN EOS can be used to calibrate high pressure for chemical compound TiN .

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Equation of State of TiN at High Pressures and Temperatures: A Possible Host for Nitrogen in Planetary Mantles

Cited by 3 publications

References 73 publications

The origin and evolution of Earth's nitrogen

The origin and evolution of Earth's nitrogen

High-Pressure Calibration TiN Equation of State

Study the change of some physical and chemical properties of TiN under high pressure

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