MECHANISTIC AND PROCESSING STUDIES IN COMBUSTION SYNTHESIS OF NIOBIUM ALUMINIDES

被引：27

作者：

KACHELMYER, CR

ROGACHEV, AS

VARMA, A

机构：

[1] UNIV NOTRE DAME,DEPT CHEM ENGN,NOTRE DAME,IN 46556

[2] RUSSIAN ACAD SCI,INST STRUCT MACROKINET,CHERNOGOLOVKA 142432,RUSSIA

来源：

JOURNAL OF MATERIALS RESEARCH | 1995年 / 10卷 / 09期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1557/JMR.1995.2260

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Combustion synthesis of NbAl3 and Nb2Al was studied using the volume combustion mode. The effects of heating rate and green density were examined for NbAl3 synthesis. The effect of green density was also investigated for Nb2Al. Greater reaction completion was achieved at higher heating rates and green densities. In both NbAl3 and Nb2Al samples, the reaction was initiated above the melting point of Al. Quenching (Nb+3Al) samples pressed at relatively high and low densities below the ignition temperature, and results of a particle-foil experiment, identified the spreading characteristic of molten Al over Nb, providing mechanistic details about niobium aluminide product formation.

引用

页码：2260 / 2270

页数：11

共 31 条

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