Reaction mechanism for combustion synthesis of β-SiAlON by using Si, Al, and SiO2 as raw materials
Reaction mechanism for combustion synthesis of β-SiAlON by using Si, Al, and SiO2 as raw materials
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DOI：
10.1016/j.jallcom.2013.01.170
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发表时间：
2013-06
影响因子：
6.2
通讯作者：
Xuemei Yi;Jing Niu;Tomokazu Nakamura;T. Akiyama
中科院分区：
文献类型：
--
作者：
Xuemei Yi;Jing Niu;Tomokazu Nakamura;T. Akiyama
以硅、铝和二氧化硅为原料，在氮气压力为1 MPa的条件下缓慢加热，合成了β-SiAlON(z=1)。温度记录显示在整个过程中发生了几个放热和吸热反应，在∼800°C和∼1350°C处有两个主要的放热反应，测量的着火温度约为1350℃，由这两个放热反应估算的总反应热为592.62kJ/kg。
β-SiAlON (z=1) was combustion synthesized by slowly heating the raw mixture of Si, Al, and SiO2under a constant nitrogen pressure of 1MPa. The temperature record showed several exothermic and endothermic reactions during the entire process and two main exothermic reactions at ∼800°C and ∼1350°C. The measured ignition temperature was approximately 1350°C. The total enthalpy of reaction estimated from the two exothermic reactions was 592.62kJ/kg.