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最近几年,出现了利用原料各组分的化学反应生成复合材料或增强相的方法。这种方法能较好地解决制造成本、界面和成型性等问题。Lanxide、XD、高温合成及反应挤压铸造等多种用于制备反应生成复合材料的工艺都已相继出现。本文采用TiO_2粉末和纯铝为原料,探讨了一种新的高温反应制备复合材料的方法。 先将直径约1μm的TiO_2粉末放入模具中静压制成预制块,然后加热到预定温度,浇入熔融纯铝(99.5％),加压使铝液渗入TiO_2预制块,得到含47Vf％·TiO_2的铝
In recent years, there has been a method of using the chemical reaction of the raw material components to form a composite material or reinforcing phase. This method can better solve the problems of manufacturing cost, interface and formability. Many processes for preparation of composite materials such as Lanxide, XD, high temperature synthesis and reactive squeeze casting have emerged. In this paper, the use of TiO 2 powder and pure aluminum as raw materials, to explore a new method of high temperature synthesis of composite materials. Firstly, TiO 2 powder with a diameter of about 1 μm was put into a mold and hydrostatically made into a prefabricated block, then heated to a predetermined temperature, poured into molten pure aluminum (99.5% TiO 2 aluminum