Si-C-N nano-powders with tunable carbon content were synthesized through the reduction of silicon tetrachloride (SiCl₄) and trichloromethylsilane (SiCl₃CH₃) solution by sodium in liquid ammonia. The nano-powders contain two domains of structure, Si-C-N amorphous or continuous random networks (CRNs), and free carbon. The carbon content in Si_3+nC_nN₄ CRNs_, is tunable from n = 0 to n = 1. Free carbon will appeared with the increase of the C/Si mole ratio when C/Si is higher than 1/4. The crystallization of amorphous Si-C-N powders occurs at temperatures ranging from 1300 °C to 1500 °C depending on the carbon content. The additive-free dense Si-C-N ceramics with relatively low porosity were fabricated by Spark Plasma Sintering (SPS).

通过在液氨中用钠还原四氯化硅（SiCl ₄）和三氯甲基硅烷（SiCl ₃ CH ₃）溶液，合成了具有可调碳含量的Si-CN纳米粉。纳米粉末包含两个结构域：Si-CN非晶或连续无规网络（CRN）和自由碳。Si _{3 + n} C _n N ₄ CRNs中的碳含量_，当C / Si高于1/4时，随C / Si摩尔比的增加，自由碳会从n = 0调整到n = 1。取决于碳含量，非晶Si-CN粉末的结晶会在1300°C至1500°C的温度范围内发生。通过火花等离子体烧结（SPS）制造了具有较低孔隙率的无添加剂致密Si-CN陶瓷。