Synthesis of α-SiC particles at 1200 °C by microwave heating
Synthesis of α-SiC particles at 1200 °C by microwave heating
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DOI：
10.1016/j.powtec.2013.06.020
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发表时间：
2013-10
影响因子：
5.2
通讯作者：
Jian-lei Kuang;Wenbin Cao;Sharon Elder
中科院分区：
文献类型：
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作者：
Jian-lei Kuang;Wenbin Cao;Sharon Elder
By microwave heating at about 1200 °C and holding for 15 min, a new route was proposed to prepare α-SiC particles, using silicon, graphite and aluminum powders as starting materials in a N2–Ar atmosphere. Both Al and N2have played important roles in the synthesis of α-SiC by the formation of an AlN heterogeneous nuclei. Si–C atomic layers replicated the structure of the in-situ synthesized hexagonal AlN nuclei, then α-SiC particles formed under microwave activation. The maximum productivity of α-SiC particles in the synthesized products was 68 wt.%. This simple method could effectively reduce energy and time consumption in contrast to the traditional process for the synthesis of α-SiC.
