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发明公开
CN106631169A 一种Ti3SiC2/SiC/Al复合材料的制备方法 无效 - 撤回

一种Ti<sub>3</sub>SiC<sub>2</sub>/SiC/Al复合材料的制备方法
摘要：
本发明涉及一种Ti3SiC2/SiC/Al复合材料的制备方法，该方法包括如下步骤：1）Al基合金的制备：Al基合金的各元素质量百分比为：Al，60‑80wt%；Ti，5‑20wt%；Cu，0‑10wt%；Si，5‑25wt%；将Al锭置于石墨坩埚中，并加热至完全熔化，然后将钛、硅、铜三种物质加入到熔化后的铝液中，升温至800‑1100℃，并保温，搅拌至完全溶解，即得到熔融状态的Al基合金液；2）SiC陶瓷的处理；3）浸渗工艺：将步骤2）中处理好的SiC陶瓷浸入到步骤1）中制备好的熔融状态的Al基合金液中，浸渗温度为800℃‑1100℃，浸渗时间为1‑10h，取出试样冷却至室温即得到Ti3SiC2/SiC/Al复合材料。该方法能够显著提高SiC陶瓷基复合材料的韧性，克服了现有技术中只能在高温高真空等苛刻工艺条件进行制备的缺点，大大降低生产成本。
摘要（英）：

The invention relates to a method for preparing a Ti3SiC2/SiC/Al composite material. The method includes the following steps of 1) Al-based alloy preparing, wherein Al-based alloy is prepared from, by mass, 60 wt%-80 wt% of Al, 5 wt%-20 wt% of Ti, 0 wt%-10 wt% of Cu and 5 wt%-25 wt% of Si, a Al ingot is put into a graphite crucible and heated till the Al ingot is completely molten, then threes substances of titanium, silicon and copper are added into the molten aluminum, the temperature is increased to be 800 DEG C to 1,100 DEG C and kept, the product is stirred to be completely dissolved, and molten-state Al-based alloy liquid is obtained; 2) SiC ceramic treating; 3) infiltrating technology conducting, wherein SiC ceramic obtained after treating in the step 2) is soaked into the molten-state Al-based alloy liquid prepared in the step 1), the infiltrating temperature is 800 DEG C to 1,100 DEG C, the infiltrating time is 1 h to 10 h, a sample is taken out and cooled to be at the room temperature, and the Ti3SiC2/SiC/Al composite material is obtained. By means of the method, the toughness of the SiC-ceramic-based composite material can be remarkably improved, the defect that the Ti3SiC2/SiC/Al composite material only can be prepared under the harsh technical conditions such as the high temperature and the high vacuum in the prior art is overcome, and the production cost is greatly reduced.

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