GROWTH OF FINE PARTICLES OF THE FE-N SYSTEM PREPARED BY REACTIVE GAS EVAPORATION TECHNIQUE

被引：12

作者：

YAMAUCHI, K

YATSUYA, S

MIHAMA, K

机构：

[1] Department of Applied Physics, Faculty of Engineering, Nagoya University, Nagoya

来源：

JOURNAL OF CRYSTAL GROWTH | 1979年 / 46卷 / 05期

关键词：

D O I：

10.1016/0022-0248(79)90177-5

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Evaporation of iron at a reduced pressure varying from a few to 200 Torr of ammonia causes the growth of several kinds of fine particles of the Fe-N system. The particles thus prepared were studied by means of electron microscopy. At a few Torr of gas pressure, particles of α-Fe (bcc) and γ-Fe (fcc) show the truncated rhombic dodecahedron and mainly needle habits, respectively. The former is characteristic of bcc metals while the latter is a modification of the well-known pentagonal decahedron of multiply twinned particles. The lattice parameter of the γ-Fe is 3.64 ± 0.03 Å, which corresponds to the nitrogen content of 2.5 wt%. Above 100 Torr of gas pressure, particles of γ′-Fe4N grow. The particles collected on carbon films in the inner and outer zones are sometimes aggregated in clusters. © 1979.

引用

页码：615 / 619

页数：5

共 6 条

[1] FORMATION OF ULTRAFINE METAL PARTICLES BY GAS-EVAPORATION TECHNIQUE .4. CRYSTAL HABITS OF IRON AND FCC METALS, AL, CO, NI, CU, PD, AG, IN, AU AND PB [J].