Synthesis of Al-Y-Ni-Co composites by mechanical alloying and consecutive spark-plasma sintering

被引：20

作者：

Kim, J. S. ^{[1
]}

Povstugar, I. V. ^{[2
]}

Choi, P. P. ^{[2
]}

Yelsukov, E. P. ^{[3
]}

Kwon, Y. S. ^{[1
]}

机构：

[1] Univ Ulsan, Sch Mat Sci & Engn, Res Ctr Machine Parts & Mat Proc, Ulsan 680749, South Korea

[2] Max Planck Inst Eisenforsch GmbH, D-40237 Dusseldorf, Germany

[3] Phys Tech Inst UrB RAS, Izhevsk 426000, Russia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 486卷 / 1-2期

关键词：

Amorphous materials; Mechanical alloying; X-ray diffraction; BULK METALLIC GLASSES; NANOCRYSTALLIZATION; CONSOLIDATION;

D O I：

10.1016/j.jallcom.2009.06.193

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The mechanical alloying process of Al85Y8Ni5CO2 under low-energy ball milling was studied. Atomic mixing ends after 100 h of mechanical alloying where the final product is a composite consisting of Al nanograins embedded in an amorphous matrix. Consolidation of the dry-milled powder was performed by means of spark-plasma sintering and yielded relative density of the sintered compacts of about 97%. The influence of liquid hydrocarbons impurities (saturated and aromatic) on the mechanical alloying process was investigated. A small additive of toluene (1 wt.%) to the initial mixture resulted in a considerable improvement of the structure of the mechanically alloyed powder, possibly due to the presence of carbon impurities. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：511 / 514

页数：4

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