Ko Eun Ha, Kim Tae-Hee, Choi Sooseok, Park Dong-Wha
J Nanosci Nanotechnol. 2015 Nov;15(11):8515-20. doi: 10.1166/jnn.2015.11469.
Cubic boron nitride (c-BN) which is has extremely high hardness and thermal conductivity comparable to the diamond was synthesized in nanoparticle form by using non-transferred thermal plasma. The input power of arc plasma was fixed at 13.5 kW and the operating pressure was also fixed at atmospheric pressure. Boron oxide (B2O3) and melamine (C3H6N6) were used as raw materials for the sources of boron and nitrogen. Ammonia gas (NH3) was additionally injected to plasma jet as reactive gas providing additional nitrogen. Decomposed B2O3 and C3H6N6 enhance reactivity for synthesizing c-BN with exothermic reactions between carbon, hydrogen and oxygen. Products were collected from the inner wall of reactor. In X-ray diffraction and scanning electron microscope measurements, the collected powder was confirmed as c-BN nanoparticles which have crystalline size smaller than 150 nm.
立方氮化硼（c-BN）具有极高的硬度和与金刚石相当的热导率，通过使用非转移热等离子体以纳米颗粒形式合成。电弧等离子体的输入功率固定为13.5千瓦，操作压力也固定在大气压。氧化硼（B2O3）和三聚氰胺（C3H6N6）用作硼和氮源的原料。额外注入氨气（NH3）作为反应气体，为等离子体射流提供额外的氮。分解的B2O3和C3H6N6增强了合成c-BN的反应活性，通过碳、氢和氧之间的放热反应进行。产物从反应器内壁收集。在X射线衍射和扫描电子显微镜测量中，收集到的粉末被确认为结晶尺寸小于150纳米的c-BN纳米颗粒。
