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

页码：305 / 311

页数：7

共 49 条

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