Mechanism of metal titanium powder nitriding under microwave heating at high oxygen partial pressure

Keiichiro Kashimura, Jun Fukushima, Motoyasu Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Chemical reaction under microwave field goes noticed as the heating mechanism has been studied. It was reported that a reduction caused by microwave heating shows different scientific behavior from that by conventional ones. Authors noticed that metal titanium powders are heated by microwave heating at high oxygen partial pressure and the oxygen partial pressure change of exhaust-gas were measured to understand the mechanism of the nitriding response using solid electrolyte oxygen sensor. The nitridation mechanism was discussed using quantum-chemical simulation for Ti14O13 model. During application of the heating, the pressure decreased to 1 × 10 -10 atm and quickly increased to 1 × 10-5 atm and then oxygen emission peaks were observed. Furthermore, quantum-chemical simulation showed that Ti-O bonding of titanium oxide is anti-bonding and consists of 3d orbital.

Original languageEnglish
Title of host publicationMaterials Science and Technology Conference and Exhibition 2010, MS and T'10
Pages2827-2830
Number of pages4
Volume4
Publication statusPublished - 2010 Dec 1
EventMaterials Science and Technology Conference and Exhibition 2010, MS and T'10 - Houston, TX, United States
Duration: 2010 Oct 172010 Oct 21

Other

OtherMaterials Science and Technology Conference and Exhibition 2010, MS and T'10
CountryUnited States
CityHouston, TX
Period10/10/1710/10/21

Keywords

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

ASJC Scopus subject areas

  • Materials Science (miscellaneous)

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