Preparation of tetragonal zirconia containing titanium nitride powder by in-situ selective nitridation

Citation
Hz. Zhai et al., Preparation of tetragonal zirconia containing titanium nitride powder by in-situ selective nitridation, J MAT CHEM, 11(4), 2001, pp. 1092-1095
Citations number
18
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS CHEMISTRY
ISSN journal
0959-9428 → ACNP
Volume
11
Issue
4
Year of publication
2001
Pages
1092 - 1095
Database
ISI
SICI code
0959-9428(2001)11:4<1092:POTZCT>2.0.ZU;2-5
Abstract
A novel in-situ preparation technique has been developed for selective reac tion in solid solution. A thermodynamic approach was employed to analyze th e selective nitridation conditions of the (Zr,Ti)O-2 solid solution system and to define the temperature range of the selective nitridation. Tetragona l zirconia containing titanium nitride powder was synthesized by carbotherm al reduction under a nitrogen atmosphere in the selected temperature range. The influence of reaction temperature on selective nitridation was evaluat ed by X-ray diffraction. Elemental quantitative analysis showed that the ra tio of selective nitridation of titanium oxide reached about 93%. The morph ology of the resultant powder was observed by scanning electron microscopy. The average particle size of the powders obtained was found to be in the r ange 300-400 nm.