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一种具有高导热性能的纳米金刚石增强3D打印铝合金材料
InventionUnknown
10Claims · 2 independent
§ Ⅰ
Dossier Overview
Inventor
田乐; 朱晓森; 常亚昕
Filing Date
Aug 31, 2026
Publication Date
Oct 16, 2026
IPC Classification
C22C 21/02 (2006.01)C22C 26/00 (2006.01)B82Y 30/00 (2011.01)B82Y 40/00 (2011.01)C22C 1/05 (2023.01)B22F 10/28 (2021.01)B22F 10/64 (2021.01)B33Y 10/00 (2015.01)B33Y 40/20 (2020.01)B33Y 70/10 (2020.01)C22F 1/043 (2006.01)
本发明提出了一种具有高导热性能的纳米金刚石增强3D打印铝合金材料,涉及增材制造金属基复合材料技术领域,其特征在于,包括以下质量百分比的组分:铝基体为Al‑Si‑Mg系合金粉末,含量为94.5~99.2%;纳米金刚石增强相,含量为0.3~3.5%;界面调控元素,含量为0.5~2.0%;其中,Al‑Si‑Mg系合金粉末中硅的质量百分比为7.0~12.0%,镁的质量百分比为0.2~0.6%,其余为铝。本发明提出了一种具有高导热性能的纳米金刚石增强3D打印铝合金材料,将纳米金刚石引入LPBF铝合金,退火后热导率达190~230W/(m·K),较AlSi10Mg提高10~30%;通过表面修饰与界面调控形成高导热界面层,抑制有害相,降低热阻;材料密度约2.65~2.72g/cm³,抗拉强度≥320MPa,兼具轻质高强特性,适用于航空航天、电子散热等领域。
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