Oxygen partial pressure change with metal titanium powder nitriding under microwave heating

Keiichiro Kashimura; Jun Fukushima; Motoyasu Sato

doi:10.2355/isijinternational.51.181

Oxygen partial pressure change with metal titanium powder nitriding under microwave heating

Keiichiro Kashimura, Jun Fukushima, Motoyasu Sato

ENG - Applied Chemistry

National Institutes of Natural Sciences - National Institute for Fusion Science

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Microwave heating was applied to metal titanium powders at high oxygen partial pressure (10^-5 atm) and the partial pressure of exhaust-gas were measured using an oxygen sensor made of solid electrolyte. During the application of the heating, the pressure decreased to an order of 10 ^-10 atm and quickly increased to an order of 10^-5 atm and then oxygen emission peaks were observed. Furthermore, the nitriding mechanism was discussed for Ti₁₄O₁₃ model in terms of quantum chemistry. The quantum-chemical simulation showed that Ti-O bonding of titanium oxide is anti-bonding and consists of 3d orbital. The orbital becomes steady state by removing an oxygen atom from the model.

Original language	English
Pages (from-to)	181-185
Number of pages	5
Journal	ISIJ International
Volume	51
Issue number	2
DOIs	https://doi.org/10.2355/isijinternational.51.181
Publication status	Published - 2011

Keywords

3d orbital
Metal titanium powder
Microwave heating
Nitriding mechanism
Oxygen partial pressure
Titanium oxide

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10.2355/isijinternational.51.181

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title = "Oxygen partial pressure change with metal titanium powder nitriding under microwave heating",

abstract = "Microwave heating was applied to metal titanium powders at high oxygen partial pressure (10-5 atm) and the partial pressure of exhaust-gas were measured using an oxygen sensor made of solid electrolyte. During the application of the heating, the pressure decreased to an order of 10 -10 atm and quickly increased to an order of 10-5 atm and then oxygen emission peaks were observed. Furthermore, the nitriding mechanism was discussed for Ti14O13 model in terms of quantum chemistry. The quantum-chemical simulation showed that Ti-O bonding of titanium oxide is anti-bonding and consists of 3d orbital. The orbital becomes steady state by removing an oxygen atom from the model.",

keywords = "3d orbital, Metal titanium powder, Microwave heating, Nitriding mechanism, Oxygen partial pressure, Titanium oxide",

author = "Keiichiro Kashimura and Jun Fukushima and Motoyasu Sato",

year = "2011",

doi = "10.2355/isijinternational.51.181",

language = "English",

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T1 - Oxygen partial pressure change with metal titanium powder nitriding under microwave heating

AU - Kashimura, Keiichiro

AU - Fukushima, Jun

AU - Sato, Motoyasu

PY - 2011

Y1 - 2011

N2 - Microwave heating was applied to metal titanium powders at high oxygen partial pressure (10-5 atm) and the partial pressure of exhaust-gas were measured using an oxygen sensor made of solid electrolyte. During the application of the heating, the pressure decreased to an order of 10 -10 atm and quickly increased to an order of 10-5 atm and then oxygen emission peaks were observed. Furthermore, the nitriding mechanism was discussed for Ti14O13 model in terms of quantum chemistry. The quantum-chemical simulation showed that Ti-O bonding of titanium oxide is anti-bonding and consists of 3d orbital. The orbital becomes steady state by removing an oxygen atom from the model.

AB - Microwave heating was applied to metal titanium powders at high oxygen partial pressure (10-5 atm) and the partial pressure of exhaust-gas were measured using an oxygen sensor made of solid electrolyte. During the application of the heating, the pressure decreased to an order of 10 -10 atm and quickly increased to an order of 10-5 atm and then oxygen emission peaks were observed. Furthermore, the nitriding mechanism was discussed for Ti14O13 model in terms of quantum chemistry. The quantum-chemical simulation showed that Ti-O bonding of titanium oxide is anti-bonding and consists of 3d orbital. The orbital becomes steady state by removing an oxygen atom from the model.

KW - 3d orbital

KW - Metal titanium powder

KW - Microwave heating

KW - Nitriding mechanism

KW - Oxygen partial pressure

KW - Titanium oxide

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DO - 10.2355/isijinternational.51.181

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Oxygen partial pressure change with metal titanium powder nitriding under microwave heating

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Keywords

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