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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation of SiBCN nanoparticles
The invention belongs to the technical field of ultrahigh-temperature ceramic materials, and particularly relates to preparation of SiBCN nanoparticles, which comprises the following steps: firstly, stirring boron trichloride, methyl dichlorosilane and hexamethyldisilazane which are used as raw materials in a precooling environment under the protection of inert atmosphere to prepare a prepolymer of a SiBCN ceramic precursor; carrying out heating polymerization on the prepolymer to obtain a SiBCN ceramic precursor; and grinding the precursor, and sintering at a high temperature under the protection of an inert atmosphere to obtain the nano-particles. The preparation method is simple, efficient and low in production cost, and the prepared SiBCN particles are uniform in size distribution.
本发明属于超高温陶瓷材料技术领域，具体涉及一种SiBCN纳米颗粒的制备，本发明首先以三氯化硼、甲基二氯硅烷和六甲基二硅氮烷为原料，在惰性气氛保护下于预冷的环境中经搅拌制得SiBCN陶瓷先驱体的预聚体，预聚体经加热聚合后制得SiBCN陶瓷先驱体；然后对上述先驱体进行研磨后在惰性气氛保护下高温烧结成纳米颗粒。本发明制备方法简单高效，生产成本低，所制得的SiBCN颗粒尺寸分布均匀。
Preparation of SiBCN nanoparticles
The invention belongs to the technical field of ultrahigh-temperature ceramic materials, and particularly relates to preparation of SiBCN nanoparticles, which comprises the following steps: firstly, stirring boron trichloride, methyl dichlorosilane and hexamethyldisilazane which are used as raw materials in a precooling environment under the protection of inert atmosphere to prepare a prepolymer of a SiBCN ceramic precursor; carrying out heating polymerization on the prepolymer to obtain a SiBCN ceramic precursor; and grinding the precursor, and sintering at a high temperature under the protection of an inert atmosphere to obtain the nano-particles. The preparation method is simple, efficient and low in production cost, and the prepared SiBCN particles are uniform in size distribution.
本发明属于超高温陶瓷材料技术领域，具体涉及一种SiBCN纳米颗粒的制备，本发明首先以三氯化硼、甲基二氯硅烷和六甲基二硅氮烷为原料，在惰性气氛保护下于预冷的环境中经搅拌制得SiBCN陶瓷先驱体的预聚体，预聚体经加热聚合后制得SiBCN陶瓷先驱体；然后对上述先驱体进行研磨后在惰性气氛保护下高温烧结成纳米颗粒。本发明制备方法简单高效，生产成本低，所制得的SiBCN颗粒尺寸分布均匀。
Preparation of SiBCN nanoparticles
一种SiBCN纳米颗粒的制备
LI BIN (Autor:in) / WANG CAIYAN (Autor:in) / ZHOU HAIJIE (Autor:in) / TIAN ZHILIN (Autor:in)
11.02.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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