THE EFFECT OF NITROGEN AND OXYGEN ON THE SYNTHESIS OF B2 NIAL BY CRYOMILLING

被引：20

作者：

HUANG, B ^{[1
]}

VALLONE, J ^{[1
]}

LUTON, MJ ^{[1
]}

机构：

[1] EXXON RES & ENGN CO,CORP RES,ANNANDALE,NJ 08801

来源：

NANOSTRUCTURED MATERIALS | 1995年 / 5卷 / 06期

关键词：

D O I：

10.1016/0965-9773(95)00280-R

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cyvomilling of elemental Ni-50 at.%Al powders in liquid nitrogen resulted in phase transformation through Mo opposing mechanisms: the formation of B2 NiAl and the elimination of NiAl by displacement reactions between NiAl and the liquid nitrogen and oxygen to form AlN and gamma-Al2O3. During annealing, the NiAl reacts to form AlN and gamma-Al2O3, thereby moving the composition of the balance of the mixture toward the Ni-rich end of the phase diagram. The resultant nanoscale AlN and gamma-Al2O3 particles were found to impede grain growth of the nanocrystalline structure at high temperatures.

引用

页码：631 / 642

页数：12

共 9 条

[1] FORMATION OF ALUMINUM NITRIDE DURING CRYOMILLING OF NIAL [J].