Synthesis and characterization of in situ Al-AlN composite by nitrogen gas bubbling method

被引：39

作者：

Kumari, S. S. Sreeja ^{[1
]}

Pillai, U. T. S. ^{[1
]}

Pai, B. C. ^{[1
]}

机构：

[1] CSIR, Natl Inst Interdisciplinary Sci & Technol, Mat & Minerals Div, Trivandrum 695019, Kerala, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 05期

关键词：

Al-AlN composites; In situ method; Microstructure; Scanning electron microscopy; X-ray diffraction; MATRIX COMPOSITES; ALUMINUM; INFILTRATION; NITRIDATION;

D O I：

10.1016/j.jallcom.2010.11.065

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：

In situ Al-AlN composite with and without Mg addition was synthesized by nitrogen gas bubbling method. The morphology of the particles was found to be hexagonal by SEM and TEM. The size of the AlN particles was found to be in the range from nano, submicron to a few microns. XRD analysis of the extracted particles confirmed the formation of AlN in the melt. Mg addition enhanced the nitridation rate and formed network of interconnected AlN particles. Hardness of the composite is significantly increased by the hard AlN particles. Further, the mechanism of formation of AlN particles inside the molten aluminium by gas bubbling is discussed. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2503 / 2509

页数：7

共 26 条

[1] THE FABRICATION OF METAL MATRIX COMPOSITES BY A PRESSURELESS INFILTRATION TECHNIQUE [J].