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Aluminum magnesium boron-lanthanum hexaboride composite ceramic material and preparation method thereof
The invention provides an aluminum magnesium boron-lanthanum hexaboride composite ceramic material and a preparation method thereof, and belongs to the technical field of composite ceramic materials. The aluminum magnesium boron-lanthanum hexaboride composite ceramic material is successfully prepared through high-energy ball milling, compression molding, microwave presintering and sintering treatment. By adding lanthanum hexaboride, the high-temperature oxidation resistance and chemical corrosion resistance of aluminum-magnesium-boron can be improved, and grains of the composite ceramic material can be refined. The boron powder and the boron carbide are used for reducing lanthanum, aluminum and magnesium oxides together to obtain the aluminum-magnesium-boron and lanthanum hexaboride two-phase composite ceramic material, no other impurity phase exists, the synthesis temperature required by the method is low, and the cost is lower than that during reduction of pure boron powder.
本发明提供了一种铝镁硼‑六硼化镧复合陶瓷材料及其制备方法，属于复合陶瓷材料技术领域。本发明通过高能球磨、压制成型、微波预烧结和烧结处理，成功制备得到铝镁硼‑六硼化镧复合陶瓷材料。本发明中六硼化镧的加入，能够提高铝镁硼的高温抗氧化和耐化学腐蚀性能，同时能够细化复合陶瓷材料的晶粒。且本发明利用硼粉和碳化硼共同还原镧、铝和镁的氧化物，得到铝镁硼和六硼化镧的两相复合陶瓷材料，无其他杂质相，本发明的方法所需合成温度低，成本较纯硼粉还原时低。
Aluminum magnesium boron-lanthanum hexaboride composite ceramic material and preparation method thereof
The invention provides an aluminum magnesium boron-lanthanum hexaboride composite ceramic material and a preparation method thereof, and belongs to the technical field of composite ceramic materials. The aluminum magnesium boron-lanthanum hexaboride composite ceramic material is successfully prepared through high-energy ball milling, compression molding, microwave presintering and sintering treatment. By adding lanthanum hexaboride, the high-temperature oxidation resistance and chemical corrosion resistance of aluminum-magnesium-boron can be improved, and grains of the composite ceramic material can be refined. The boron powder and the boron carbide are used for reducing lanthanum, aluminum and magnesium oxides together to obtain the aluminum-magnesium-boron and lanthanum hexaboride two-phase composite ceramic material, no other impurity phase exists, the synthesis temperature required by the method is low, and the cost is lower than that during reduction of pure boron powder.
本发明提供了一种铝镁硼‑六硼化镧复合陶瓷材料及其制备方法，属于复合陶瓷材料技术领域。本发明通过高能球磨、压制成型、微波预烧结和烧结处理，成功制备得到铝镁硼‑六硼化镧复合陶瓷材料。本发明中六硼化镧的加入，能够提高铝镁硼的高温抗氧化和耐化学腐蚀性能，同时能够细化复合陶瓷材料的晶粒。且本发明利用硼粉和碳化硼共同还原镧、铝和镁的氧化物，得到铝镁硼和六硼化镧的两相复合陶瓷材料，无其他杂质相，本发明的方法所需合成温度低，成本较纯硼粉还原时低。
Aluminum magnesium boron-lanthanum hexaboride composite ceramic material and preparation method thereof
一种铝镁硼-六硼化镧复合陶瓷材料及其制备方法
ZHUANG LEI (Autor:in) / SU NAN (Autor:in) / TIAN TIAN (Autor:in) / SANG WEI (Autor:in) / ZHAO YUKUN (Autor:in)
16.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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