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发明授权
CN106498211B 纳米氧化铝颗粒原位增强高热稳纳米相复合结构Al-Sn合金的制备方法 有权

纳米氧化铝颗粒原位增强高热稳纳米相复合结构Al-Sn合金的制备方法
摘要：
本发明公开了纳米氧化铝颗粒原位增强高热稳纳米相复合结构Al‑Sn合金的制备方法，包括以下步骤：(1)对SnO2粉末进行活化处理；(2)将Al粉、活化处理的SnO2粉和MgH2粉末混合，在氩气保护下进行球磨，得到纳米晶Al‑SnO2‑MgH2合金粉末；(3)将球磨后的纳米晶Al‑SnO2‑MgH2合金粉末冷压成型，在氩气保护下烧结，烧结温度为580～610℃，获得纳米Al2O3颗粒原位增强高热稳纳米相复合结构Al‑Sn合金。本发明的纳米Al2O3颗粒原位增强高热稳纳米相复合结构Al‑Sn合金具有较高的热稳定性、与基体界面结合良好，力学性能优异，并且制备方法工艺简单，操作流程短。
摘要（英）：

The invention discloses a preparation method of a nano-alumina particle in-situ reinforced type high-thermostability nano-phase composite structural Al-Sn alloy. The preparation method comprises the following steps: (1) activating SnO2 powder; (2) mixing Al powder, the activated SnO2 powder and MgH2 powder, and then performing ball milling on the mixture under argon protection to obtain nano-crystalline Al-SnO2-MgH2 alloy powder; and (3) molding the nano-crystalline Al-SnO2-MgH2 alloy powder subjected to ball milling by cold pressing, and then sintering at the temperature of 580 DEG C to 610 DEG C under the argon protection so as to obtain the nano-Al2O3 particle in-situ reinforced type high-thermostability nano-phase composite structural Al-Sn alloy. The nano-Al2O3 particle in-situ reinforced type high-thermostability nano-phase composite structural Al-Sn alloy is high in thermostability, can be well combined with the matrix surface, and is outstanding in mechanical property; and in addition, the preparation method is simple in technique, and short in operation process.

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