Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention belongs to the technical field of ceramic materials, and discloses a preparation method of magnesium oxide ceramic with high thermal shock resistance. The preparation method of the magnesium oxide ceramic with high thermal shock resistance comprises the steps of carrying out ball milling and mixing on micron-sized light magnesium oxide powder as a raw material and a rare earth oxideand a binder, carrying out compression molding under a hydraulic machine and then carrying out sintering, wherein the rare earth oxide is selected from rare earth cerium oxide, neodymium oxide and praseodymium oxide, 70% or more of the light magnesium oxide powder has a particle size of 0.5-1 [mu]m, 90% of the light magnesium oxide powder has a particle size of 0.5-2 [mu]m, the mass percentage ofthe light magnesium oxide powder is 91%-97%, and the mass percentage of the rare earth oxide is 2%-8%. The magnesium oxide ceramic prepared by the method has high thermal shock resistance, the servicelife of the magnesium oxide ceramic in a high-temperature environment can be prolonged, and the magnesium oxide ceramic is more suitable for being used as a crucible for smelting metal.
本发明属于陶瓷材料技术领域，公开了一种高抗热震氧化镁陶瓷的制备方法。本发明高抗热震氧化镁陶瓷的制备方法为：使用微米级轻质氧化镁粉末作为原料，与稀土氧化物和粘结剂球磨混合后在液压机下压制成型，再烧结而成，其中，所述稀土氧化物选自稀土氧化铈、氧化钕和氧化镨，所述轻质氧化镁粉末70%以上颗粒尺寸分布在0.5‑1μm之间，90%颗粒尺寸分布在0.5‑2μm之间，所述轻质氧化镁粉末的质量百分比为91%~97%，所述稀土氧化物的质量百分比为2%~8%。本发明方法制备的氧化镁陶瓷具有高抗热震性能，可以提高其在高温环境下的使用寿命，更适合用作冶炼金属的坩埚。
The invention belongs to the technical field of ceramic materials, and discloses a preparation method of magnesium oxide ceramic with high thermal shock resistance. The preparation method of the magnesium oxide ceramic with high thermal shock resistance comprises the steps of carrying out ball milling and mixing on micron-sized light magnesium oxide powder as a raw material and a rare earth oxideand a binder, carrying out compression molding under a hydraulic machine and then carrying out sintering, wherein the rare earth oxide is selected from rare earth cerium oxide, neodymium oxide and praseodymium oxide, 70% or more of the light magnesium oxide powder has a particle size of 0.5-1 [mu]m, 90% of the light magnesium oxide powder has a particle size of 0.5-2 [mu]m, the mass percentage ofthe light magnesium oxide powder is 91%-97%, and the mass percentage of the rare earth oxide is 2%-8%. The magnesium oxide ceramic prepared by the method has high thermal shock resistance, the servicelife of the magnesium oxide ceramic in a high-temperature environment can be prolonged, and the magnesium oxide ceramic is more suitable for being used as a crucible for smelting metal.
本发明属于陶瓷材料技术领域，公开了一种高抗热震氧化镁陶瓷的制备方法。本发明高抗热震氧化镁陶瓷的制备方法为：使用微米级轻质氧化镁粉末作为原料，与稀土氧化物和粘结剂球磨混合后在液压机下压制成型，再烧结而成，其中，所述稀土氧化物选自稀土氧化铈、氧化钕和氧化镨，所述轻质氧化镁粉末70%以上颗粒尺寸分布在0.5‑1μm之间，90%颗粒尺寸分布在0.5‑2μm之间，所述轻质氧化镁粉末的质量百分比为91%~97%，所述稀土氧化物的质量百分比为2%~8%。本发明方法制备的氧化镁陶瓷具有高抗热震性能，可以提高其在高温环境下的使用寿命，更适合用作冶炼金属的坩埚。
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