加压渗流法制备Si<sub>p</sub>/Al复合材料的研究

夏明旷; 程和法; 黄笑梅; 程兆虎; 余凯; 杜承信

doi:10.15980/j.tzzz.2015.02.026

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加压渗流法制备Si_p/Al复合材料的研究
Fabrication of Si_p/Al Composites with High Si Volume Fraction by Pressure Infiltration Method
2015年35卷第2期页码：191-194
纸质出版日期： 2015 ，
DOI： 10.15980/j.tzzz.2015.02.026

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[1]夏明旷,程和法,黄笑梅,程兆虎,余凯,杜承信.加压渗流法制备Si_p/Al复合材料的研究[J].特种铸造及有色合金,2015,35(02):191-194.

Xia Mingkuang, Cheng Hefa, Huang Xiaomei, et al. Fabrication of Si_p/Al Composites with High Si Volume Fraction by Pressure Infiltration Method[J]. Special Casting & Nonferrous Alloys, 2015,35(2):191-194.
[1]夏明旷,程和法,黄笑梅,程兆虎,余凯,杜承信.加压渗流法制备Si_p/Al复合材料的研究[J].特种铸造及有色合金,2015,35(02):191-194. DOI： 10.15980/j.tzzz.2015.02.026.

Xia Mingkuang, Cheng Hefa, Huang Xiaomei, et al. Fabrication of Si_p/Al Composites with High Si Volume Fraction by Pressure Infiltration Method[J]. Special Casting & Nonferrous Alloys, 2015,35(2):191-194. DOI： 10.15980/j.tzzz.2015.02.026.

摘要

采用加压渗流法制备高Si（体积分数）的Sip/Al复合材料

并通过等温热处理改善复合材料中Si颗粒的形态及其与铝基体的结合

消除了复合材料中的缩松缺陷。结果表明

加压渗流法制备的Sip/Al复合材料中Si的体积分数可以达到65%;在570

10℃之间进行保温处理后

复合材料中的Si颗粒通过部分溶解和再析出

形态变得更加圆整

其与基体金属的界面结合状态也得到显著改善。另外

通过等温处理还能在很大程度上消除渗流法制备的复合材料中的缩松缺陷。

Abstract

Sip/Al composites with high volume fraction of silicon was prepared by pressure infiltration method.Then isothermal heat treatment was conducted for Sip/Al composites to improve the morphology of Si particles and interfacial bonding between Si particles and the aluminum matrix to eliminate the shrinkage defects in the composites prepared.The results indicate that the volume fraction of silicon in Sip/Al composites can reach up to 65%.After holding temperature at 570

10 ℃

the Si particles in the composites can be spheroidized gradually by partially dissolving and re-precipitation process.Meanwhile

the interfacial bonding of Si particles and matrix metal is significantly improved.In addition

the infiltration defects of the composites prepared can be eliminated largely by isothermal treatment.

关键词

Sip/Al复合材料微观组织加压渗流法重熔处理

Keywords

Sip/Al CompositeMicrostructurePressure InfiltrationHeat Treatment

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加压渗流法制备Sip/Al复合材料的研究

Fabrication of Sip/Al Composites with High Si Volume Fraction by Pressure Infiltration Method

DOI： 10.15980/j.tzzz.2015.02.026

摘要

Abstract

关键词

Keywords

references

加压渗流法制备Si_p/Al复合材料的研究

Fabrication of Si_p/Al Composites with High Si Volume Fraction by Pressure Infiltration Method