Effect of presvnthesis of Ta precursor on the formation of Ta nitrides

Jong Chul Park, Jae Hwan Pee, Hyung-Ho Park

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We synthesized Ta3N5 by ammonolysis of Ta (OH) 5 Ta(OH)5 was prepared by titration using TaCls. The stirring speed and the amount of NH4OH to be added were important factors for controlling the particle size and formation of Ta(OH)5 during titration. During transformation of Ta(OH)5to Ta3N5, the color changed from white to red. A small particle size and high level of formation of Ta(OH)3 improved nitridation, which was related to the color value. An x-ray diffractometer was used for phase identification. A scanning electron microscope was used to determine the microstmcture, particle shape, and size. A colorimeter was used to obtain CIELab values. Ultraviolet-visible (UV-VIS) spectroscopy was carried out to determine the absorbance of colored powders. Thermogravimetry and a differential scanning calorimeter were used in air with a heating rate of 5 °C/min for thermal stability andbehavior. An ON detector was used for detecting oxygen and nitrogen contents in Ta3N 5

Original languageEnglish
Pages (from-to)835-841
Number of pages7
JournalJournal of Materials Research
Volume25
Issue number5
DOIs
Publication statusPublished - 2010 May 1

Fingerprint

Titration
Nitrides
nitrides
Particle size
Colorimeters
Color
Scanning
titration
Nitridation
Ultraviolet visible spectroscopy
Diffractometers
Calorimeters
Heating rate
ammonolysis
Powders
Thermogravimetric analysis
color
Thermodynamic stability
Electron microscopes
Nitrogen

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Park, Jong Chul ; Pee, Jae Hwan ; Park, Hyung-Ho. / Effect of presvnthesis of Ta precursor on the formation of Ta nitrides. In: Journal of Materials Research. 2010 ; Vol. 25, No. 5. pp. 835-841.
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Effect of presvnthesis of Ta precursor on the formation of Ta nitrides. / Park, Jong Chul; Pee, Jae Hwan; Park, Hyung-Ho.

In: Journal of Materials Research, Vol. 25, No. 5, 01.05.2010, p. 835-841.

Research output: Contribution to journalArticle

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AB - We synthesized Ta3N5 by ammonolysis of Ta (OH) 5 Ta(OH)5 was prepared by titration using TaCls. The stirring speed and the amount of NH4OH to be added were important factors for controlling the particle size and formation of Ta(OH)5 during titration. During transformation of Ta(OH)5to Ta3N5, the color changed from white to red. A small particle size and high level of formation of Ta(OH)3 improved nitridation, which was related to the color value. An x-ray diffractometer was used for phase identification. A scanning electron microscope was used to determine the microstmcture, particle shape, and size. A colorimeter was used to obtain CIELab values. Ultraviolet-visible (UV-VIS) spectroscopy was carried out to determine the absorbance of colored powders. Thermogravimetry and a differential scanning calorimeter were used in air with a heating rate of 5 °C/min for thermal stability andbehavior. An ON detector was used for detecting oxygen and nitrogen contents in Ta3N 5

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