Effects of SiO2 and MgO on the Thermophysical and Mechanical Properties of Al/Al2O3 Composites and Their Compatibility with Al-Si Alloys

  • ZHANG Zhilei ,
  • XUE Rongxin ,
  • ZHANG Ruiying ,
  • ZHAO Ge ,
  • LIANG Yahong ,
  • YAN Suying
展开
  • 1. School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
    2. Inner Mongolia Guolong Energy Management Co., Ltd, Hohhot 010090, China

网络出版日期: 2025-05-06

基金资助

This study was supported by the Inner Mongolia Science and Technology Plan Project (2021GG0252), Inner Mongolia Local Science and Technology Development Central Guidance Fund (2024ZY0125), Inner Mongolia Autonomous Region University Basic Research Business Fund Special Fund (JY20230063), and Inner Mongolia Autonomous Region University Basic Research Business Fund Special Fund (JY20220252).

版权

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2025

Effects of SiO2 and MgO on the Thermophysical and Mechanical Properties of Al/Al2O3 Composites and Their Compatibility with Al-Si Alloys

  • ZHANG Zhilei ,
  • XUE Rongxin ,
  • ZHANG Ruiying ,
  • ZHAO Ge ,
  • LIANG Yahong ,
  • YAN Suying
Expand
  • 1. School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
    2. Inner Mongolia Guolong Energy Management Co., Ltd, Hohhot 010090, China

Online published: 2025-05-06

Supported by

This study was supported by the Inner Mongolia Science and Technology Plan Project (2021GG0252), Inner Mongolia Local Science and Technology Development Central Guidance Fund (2024ZY0125), Inner Mongolia Autonomous Region University Basic Research Business Fund Special Fund (JY20230063), and Inner Mongolia Autonomous Region University Basic Research Business Fund Special Fund (JY20220252).

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2025

摘要

以Al粉、Al2O3粉为原料,SiO2、MgO为烧结助剂,采用冷压烧结法制备了不同SiO2和MgO含量的Al/Al2O3复合材料。测试了复合材料的相变潜热、热导率和弯曲强度,观察并分析了复合材料的显微组织以及与Al-12wt%Si合金的相容性,探讨了它的热学性能、力学性能及相容性与组织的关系。结果表明:随着SiO2含量的逐渐增加和MgO含量的逐渐减少,复合材料的综合性能呈现出先增大后降低的变化趋势,当SiO2和MgO含量均为1%时,复合材料的综合性能最好,其弯曲强度为79.645 MPa,热导率为23.903 W/m·K,潜热值为93.61 J/g;在相容性实验中,随着热循环次数的增加,Si原子在复合材料中的扩散距离呈现出先增大后保持不变的变化趋势,扩散距离保持在150 µm左右,相容性较好。

本文引用格式

ZHANG Zhilei , XUE Rongxin , ZHANG Ruiying , ZHAO Ge , LIANG Yahong , YAN Suying . Effects of SiO2 and MgO on the Thermophysical and Mechanical Properties of Al/Al2O3 Composites and Their Compatibility with Al-Si Alloys[J]. 热科学学报, 2025 , 34(3) : 996 -1007 . DOI: 10.1007/s11630-025-2144-z

Abstract

Al/Al2O3 is crucial encapsulation composites used in solar thermal storage systems. Al/Al2O3 composites with varying SiO2 and MgO contents were prepared using Al powder and Al2O3 powder as raw materials, with SiO2 and MgO as sintering aids, through a cold-press sintering method. The latent heat, thermal conductivity, and bending strength of the composites were measured. The microstructure of the composites and their compatibility with Al-Si (88%-12% in weight) alloy were observed and analyzed. The relationship between thermal properties, mechanical properties, compatibility, and microstructure was investigated. The results show that as the SiO2 content increases and the MgO content decreases, the comprehensive performance of the composites first improves and then decreases. The composites exhibit the best comprehensive performance when the mass contents of SiO2 and MgO are both 1%, with a bending strength of 79.645 MPa, thermal conductivity of 23.903 W/(m·K), and a latent heat of 93.61 J/g. In the compatibility experiment, as the number of thermal cycles increases, the diffusion distance of Si atoms in the composite first increases and then stabilizes, maintaining a distance of approximately 150 µm, indicating good compatibility.

参考文献

[1] Wang Z.Y., Wang H., Li X.B., et al., Aluminum and silicon based phase change materials for high capacity thermal energy storage. Applied Thermal Engineering, 2015, 89: 204–208.
[2] Liu J., Wang X., Zeng D.B., et al., Selection of high temperature phase change material Al-Si alloy and experimental study on its metal container compatibility. Journal of Solar Energy, 2006, 27(1): 36–40.
[3] Huang Z.G., Guo H., Wu G.Z., et al., Research on aluminum based alloys for high temperature solar energy storage. New Energy, 1992, 14(12): 5–8.
[4] Zhang G.C., Xu Z., Chen Y.F., et al., Research progress and application of metal based phase change materials. Energy Storage Science and Technology, 2012, 1(01): 74–81.
[5] Li H.P., Zhang R.Y., Chen X., et al., Research on container materials for thermal storage aluminum silicon eutectic alloy. Journal of Guangdong University of Technology, 2009, 26(2): 36–39.
[6] Tang W.M., Ding H.F., Zheng Z.X., et al., Low temperature sintering of Al/Al2O3 ceramic matrix composites. Powder Metallurgy Technology, 1996, 14(04): 268–271.
[7] Sun Y., Xu K.H., Sun J.L., The effect of MgO sintering additive on the structure and properties of porous alumina ceramics. Journal of Ceramics, 2015, 43 (09): 1255–1260.
[8] Xuan S.T., Tian Y.M., Wang X.J., The influence of Al2O3/MgO ratio on the properties of synthesized spinel ceramic materials. Journal of Materials Science and Engineering, 2022, 40(04): 652–656, 724.
[9] Mou S.Y., Chen G., Zhang Z.Y., et al., Mechanism of reaction of Al/SiO2 system to generate nano Al2O3p/Al composite materials. Special Casting and Nonferrous Alloys, 2020, 40(8): 883–887.
[10] Kong Z.Y., Huang H.B., Li R.X., et al., The influence of Si content on the microstructure and properties of Al/Si electronic packaging materials. Special Casting and Nonferrous Alloys, 2020, 40(03): 327–331.
[11] Huo H.W., Effect of high energy ball milling on displacement reaction and sintering of Al-Mg/SiO2 composite powders. Metals & Materials International, 2006, 12(1): 45–50.
[12] Revesz A., Melting behavior and origin of strain in ball-milled nanocrystalline Al powders. Journal of Materials Science, 2005, 40(7): 1643–1646.
[13] Zhu H.G., Sun X.D., Yu Z.L., et al., Reaction mechanisms, resultant microstructures and tensile properties of Al-based composites fabricated in situ from Al-SiO2-Mg system. Advanced Powder Technology, 2017, 28(10): 2572–2580.
[14] Ma M.T., Liu Y.L., Gao F.Y., et al., Thermodynamic optimization and calculation of Al2O3-MgO and Al2O3-MgO-SiO2 systems. Powder Metallurgy Materials Science and Engineering, 2022, 27 (04): 360–371.
[15] Zhang Y., Zong C.Y., Wang Y.T., et al., Influence of silicon dioxide on the properties of magnesium-aluminum spinel materials prepared by sintering of secondary aluminum ash. China Nonferrous Metallurgy, 2023, 52(03): 57–65.
[16] Gao Y.J., Li Y.W., Wang S.C., et al., Bond analysis of the strengthening effect of Al-Mg-Si alloys. Light Metals, 2005, 2: 55–57. 
[17] Zhou B.B., Sintering preparation and organizational properties of Al2O3 ceramic materials. Shenyang, Shenyang University, 2018.
[18] Guo Y.W., Chai J.L., Zhu Y.B., et al., The effect of MgAl2O4 doping on the mechanical and thermal properties of ZTA-MgAl2O4 multiphase ceramics. Journal of Ceramics, 2019, 47(12): 1717–1722.
[19] Sang K.Z., Gao C.F., Huang Z.W., et al., Preparation of interpenetrating Al2O3/Al composites by in situ reaction. Thermal Processing Technology, 2017, 46(8): 1–5.
[20] Zhou W.H., Wang R., Wang D.T., et al., Effect of eutectic Si agglomeration on the properties of extrusion casting Al-Si-Mg alloys. Special Casting and Nonferrous Alloys, 2022, 42(7): 864–869.
[21] Li Y.Y., Xu H.J., Phase transitions and deformations of rhodochrosite, blueschist and eclogite. Mineral Rock Geochemistry Bulletin, 2023, 42(02): 403–418.
[22] Duan X.L., Ren H., Gao G.H., et al., Molecular dynamics simulation of the effect of pressure change on the stability of type I methane hydrate. Petrochemicals, 2014, 43(6): 657–661.
[23] Wang A., Sheng Y.F., Bao H., Research progress and frontiers in the theory of thermal conductivity of metals. Journal of Physics, 2024, 73(03): 208–219.
[24] Chang D.X., Wang P., Gong X.Y., et al., Effect of Si on the organization and mechanical properties of Cu/Al cold-rolled composite interfaces. Rare Metal Materials and Engineering, 2015, 44(9): 2216–2221.
[25] Liu M., Guo X.L., Wu Z.H., et al., Study on the reaction process between internal oxide layer and MgO during high temperature annealing of oriented silicon steel. Electrical Steel, 2021, 3(6): 1–7.
[26] Wei J.C., Gao C.H., Huang J.K., et al., Study on the reaction properties of MgAl2O4/SiC materials under nitrogen atmosphere. Silicate Bulletin, 2013, 32(8): 1602–1605, 1613.
[27] Gao Y.F., Yao W.Q., Wang J.J., Cui Z H., Thermodynamic analysis of solid oxide fuel cell based combined cooling, heating, and power system integrated with solar-assisted electrolytic cell. Journal of Thermal Science, 2023, 32(1): 93–108.

文章导航

/