Effects of B4C particles on Al-TiO2 reaction in Al matrix composite

被引：0
作者：
Shi, B. M. [1 ,2 ]
Liu, Y. [2 ]
Zhu, S. Z. [2 ]
Zan, Y. N. [2 ,3 ]
Wang, Q. Z. [2 ,3 ]
Xiao, B. L. [2 ]
Ma, Z. Y. [2 ,3 ]
机构：
[1] Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China
[2] Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
[3] Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, 72 Wenhua Rd, Shenyang 110016, Peoples R China
来源：
JOURNAL OF NUCLEAR MATERIALS | 2025年 / 610卷
基金：
中国国家自然科学基金;
关键词：
Aluminum matrix composites; Neutron absorbing material; In-situ reation; Mechanical properties; IN-SITU AL3TI; MECHANICAL-PROPERTIES; ELEVATED-TEMPERATURE; TENSILE PROPERTIES; WEAR BEHAVIOR; MICROSTRUCTURE; DUCTILITY; STRENGTH; DESIGN;
D O I：
10.1016/j.jnucmat.2025.155776
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, composites were produced using powder metallurgy with Al-TiO2 and Al-TiO2-B4C as raw materials, and the impact of B4C on the reaction between Al and TiO2 was investigated. Hot-pressing was employed at temperatures of 580 degrees C, 600 degrees C, 620 degrees C, and 640 degrees C to fabricate the composites, followed by analysis of their microstructure and mechanical properties. The results revealed that at a temperature of 580 degrees C, Al3Ti and Al2O3 were formed in the Al-TiO2 composite system, and when the hot-pressing temperature reached 620 degrees C, all TiO2 within the matrix was completely consumed in the reaction with Al. In contrast, for the Al-TiO2-B4C composite system, B4C exhibited a noticeable inhibiting effect on the reaction. At a hot-pressing temperature of 580 degrees C, no discernible reaction occurred between TiO2 and the matrix; while at temperatures of 600 degrees C, 620 degrees C, and 640 degrees C, only a small amount of Al3Ti and Al2O3 appeared in the matrix. Consequently, the strength of composites fabricated by Al-TiO2 increased with increasing hot-pressing temperature; whereas for composites made from AlTiO2-B4C hot-pressed at different temperatures showed similar strengths.
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页数：9
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