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Effect of Vacuum Hot-Pressing Sintering Time on Microstructures and Properties of Al-30%Sc Alloy
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Hao XU, Song BAI, Xiaofeng WANG
Mining and Metallurgical Engineering | 2025, 45(3) : 203 - 206
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Mining and Metallurgical Engineering | 2025, 45(3): 203-206
• MATERIALS •
Effect of Vacuum Hot-Pressing Sintering Time on Microstructures and Properties of Al-30%Sc Alloy
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Hao XU, Song BAI, Xiaofeng WANG
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  • School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
Published: 2025-06-01 doi: 10.3969/j.issn.0253-6099.2025.03.034
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The effect of vacuum hot-pressing sintering time on phase composition, microstructure, and densification of Al-30%Sc aluminum alloy were investigated using X-ray diffraction, scanning electron microscopy and electron backscatter diffraction. Results show that after a sintering process at 630 ℃ under 30 MPa, the prepared alloy samples exhibit good uniformity. As sintering time prolongs, the content of Al3Sc phase in the alloy decreases but the content of Al2Sc phase increases, and the density and grain size remain virtually unchanged.

Al-Sc alloy  /  target material  /  hot-pressing sintering  /  sintering time  /  radio frequency filter material
Hao XU, Song BAI, Xiaofeng WANG. Effect of Vacuum Hot-Pressing Sintering Time on Microstructures and Properties of Al-30%Sc Alloy[J]. Mining and Metallurgical Engineering, 2025 , 45 (3) : 203 -206 . DOI: 10.3969/j.issn.0253-6099.2025.03.034
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doi: 10.3969/j.issn.0253-6099.2025.03.034
  • Receive Date：2024-12-01
  • Online Date：2026-03-19
  • Published：2025-06-01
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  • Received：2024-12-01
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    School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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