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CHEN Jinghe, LIU Peisheng, WANG Yaoqi, SONG Shuai, HOU Hongliang. Compression Performance and Preparation of Composite Porous Magnesium Alloy with Ceramic Hollow Sphere[J]. CHINESE JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY, 2022, 42(1): 60-68. DOI: 10.13922/j.cnki.cjvst.202106018
Citation: CHEN Jinghe, LIU Peisheng, WANG Yaoqi, SONG Shuai, HOU Hongliang. Compression Performance and Preparation of Composite Porous Magnesium Alloy with Ceramic Hollow Sphere[J]. CHINESE JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY, 2022, 42(1): 60-68. DOI: 10.13922/j.cnki.cjvst.202106018
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Compression Performance and Preparation of Composite Porous Magnesium Alloy with Ceramic Hollow Sphere

  • 1. Key Laboratory of Beam Technology of Ministry of Education, Beijing Normal University, Beijing 100875, China;

  • 2. AVIC Manufacturing Technology Institute, Beijing 100024, China

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  • Received Date: June 17, 2021
  • Available Online: September 21, 2023
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    • Abstract
  • Two kinds of lightweight composite porous magnesium alloy are successfully prepared by selecting two different ceramic hollow spheres(the commercial alumina hollow sphere and the self-made containing silicon hollow sphere) as reinforcements and sintering at 600℃ for 3 h 20 min. The microstructures of samples were observed by SEM. It was found that an alloy phase containing MgO and Mg2Si was formed by an interfacial reaction at the interface between the magnesium alloy and the self-made containing silicon ceramic hollow sphere. The influence of different types of ceramic hollow spheres on the apparent density, compressive strength and specific strength of samples was studied. The results show that the bulk density of the sample prepared by the commercial alumina hollow sphere is lower than that of another sample, and the average apparent density is 33.3% lower than that of the dense magnesium alloy, which is 1.20 g·cm-3. The average apparent density of the sample prepared by self-made containing silicon ceramic hollow spheres is 16.1% lower than that of the dense magnesium alloy, which is 1.51 g·cm-3.The compression curves of both samples have the elastic stage, the yield platform and the densification stage, which are the typical compression characteristics of porous materials. The compressive strength and specific strength of the sample with self-made containing silicon ceramic hollow spheres are higher than that of the sample with commercial alumina hollow spheres.
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    • References (24)
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