Synthesis of an Al-Based Composite Reinforced by Multi-Phase ZrB2, Al3BC and Al2O3 with Good Mechanical and Thermal Properties at Elevated Temperature

被引：14

作者：

Bian, Yihan ^{[1
]}

Gao, Tong ^{[1
]}

Zhao, Yongfeng ^{[1
]}

Liu, Guiliang ^{[2
]}

Liu, Xiangfa ^{[1
]}

机构：

[1] Shandong Univ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jingshi Rd 17923, Jinan 250061, Peoples R China

[2] Shandong Mai Ao Jing Adv Mat Co Ltd, Linyi 276000, Shandong, Peoples R China

来源：

MATERIALS | 2020年 / 13卷 / 18期

基金：

中国国家自然科学基金;

关键词：

Al composite; multiphase; elevated temperature properties; TENSILE PROPERTIES; HIGH-STRENGTH; MICROSTRUCTURE; PARTICLES; ALLOY; NANOCOMPOSITES; BEHAVIOR; PHASE; SI3N4; CU;

D O I：

10.3390/ma13184048

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：

To synthesize Al composite with high strength at elevated temperature, high modulus and thermal stability, ZrB2, Al3BC and Al2O3 particles have been chosen as reinforcements simultaneously. A (9.2 wt.% ZrB2 + 5.6 wt.% Al3BC + 5.5 wt.% Al2O3)/Al composite has been prepared, and the in-situ synthesized particles are nano-sized. Mechanical property tests reveal that the nanoparticles exhibit a remarkable synergistic enhancement effect. The elasticity modulus of the composite is 89 GPa, and the ultimate tensile strengths at 25 degrees C and 350 degrees C can be as high as 371 MPa and 154 MPa, respectively.

引用

页数：9

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