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发明公开
CN102994790A Al2O3-TiC-Fe金属陶瓷复合粉的低温制备方法 无效 - 驳回

Al2O3-TiC-Fe金属陶瓷复合粉的低温制备方法
摘要：
本发明公开了一种Al2O3-TiC-Fe金属陶瓷复合粉的低温制备方法，包括以下步骤：1）按照FeTiO3∶Al∶C=1∶2∶1的摩尔比例称取钛铁矿粉、铝粉和石墨粉混合；2）将步骤1）得到的混合粉倒入球磨罐中，球料比24∶1~3∶1，球磨1~10h，转速100~500r/min，然后将球磨后的粉料放入干燥器干燥；3）将步骤2）得到的混合料装入模具，放入烧结炉，抽真空后通氩气或氮气保护，在650~800℃下烧结5min~5h，最后冷却得到Al2O3-TiC-Fe金属陶瓷复合粉。本发明与现有技术相比，烧结温度大幅降低，大大降低了能源的消耗，并且简化了制备工艺，非常适合于大规模工业化生产。
摘要（英）：

The invention discloses a low-temperature preparation method of Al2O3-TiC-Fe metal ceramic compound powder, which comprises the following steps of: 1, weighing ilmenite powder, aluminum powder and graphite powder according to a molar ratio of FeTiO3 to Al to C being 1 to 2 to 1, and mixing; 2, pouring mixed powder obtained in the step 1 into a ball grinding tank for ball-grinding for 1-10h under the conditions that the ratio of ball to material is 24:1-3:1 and the rotating speed is 100-500r/min, then drying the ball-ground powder in a dryer; and 3, loading a mixture obtained in the step 2 in a mould, placing the mould in a sintering furnace, vacuumizing and then introducing argon or nitrogen for protection, sintering for 5min-5h at a temperature of 650-800 DEG C, and finally cooling to obtain the Al2O3-TiC-Fe metal ceramic compound powder. Compared with the prior art, the low-temperature preparation method has the advantages that the sintering temperature is greatly reduced, the energy consumption is greatly reduced, and the preparation process is simplified; and the low-temperature preparation method is very suitable for large-scale industrial production.

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