Bixbyite-type phases in the system Ta-Zr-O-N

被引：5
|
作者：
Luedtke, Tobias [1 ]
Orthmann, Steven [1 ]
Lerch, Martin [1 ]
机构：
[1] Tech Univ Berlin, Inst Chem, Str 17 Juni 135, D-10623 Berlin, Germany
来源：
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 2017年 / 72卷 / 04期
关键词：
bixbyite; nitride; oxide nitride; tantalum; zirconium; HIGH-TEMPERATURE BEHAVIOR; CRYSTAL-STRUCTURE; ELECTRONIC-STRUCTURE; OPTICAL-PROPERTIES; METASTABLE POLYMORPH; POWDER DIFFRACTION; TANTALUM NITRIDE; THIN-FILMS; MONONITRIDES; REFINEMENT;
D O I：
10.1515/znb-2017-0014
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Phase-pure tantalum/zirconium oxide nitrides and nitrides were synthesized by the ammonolysis of amorphous oxide precursors. The nitrogen-rich oxide nitrides with variable anion composition and the nitride TaZrN3 crystallize in the cubic bixbyite-type structure (space group Ia (3) over bar). The nitrogen content of these compounds has a significant influence on the cell parameters, the atomic positions, and the optical band gap. The results extend the already well-studied Ta-Zr-O-N system by new oxide nitrides in addition to the already known bad-deleyite- and anosovite-type phases. TaZrN3 can be considered as a thermodynamically stable ternary variant of metastable Ta2N3.
引用
收藏
页码：305 / 311
页数：7
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