Chemical Synthesis and Characterization of Flaky h-BCN at High Pressure and High Temperature  

作　　者：杨大鹏 李英爱 杨旭昕 杜勇慧 吉晓瑞 宫希亮 苏作鹏 张铁臣 

机构地区：[1]National Laboratory of Superhard Materials, Jilin University, Changchun 130023

出　　处：《Chinese Physics Letters》2007年第4期1088-1091,共4页中国物理快报（英文版）

摘　　要：Hexagonal boron carbonitrogen （h-BCN） compound is synthesized from a mixture of boron powder and CNH compound prepared by pyrolysis of melamine （CaH6N6） under high temperature （1400-1500℃） and high pressure （5.0-5.5 GPa）. X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy and Raman spec- troscopy are used to determine the chemical composition and bonds of the product. The results show that the product has composition of B0.18C0.64N0.16 （near BC4N） and atomic-level hybrid. X-ray diffraction analysis indicates that the powder has a hexagonal network structure. Scanning and transmission electron microscopy results suggest that h-BCN compound morphology is mainly flaky in width about 1 μm and thickness 200nm.Hexagonal boron carbonitrogen （h-BCN） compound is synthesized from a mixture of boron powder and CNH compound prepared by pyrolysis of melamine （CaH6N6） under high temperature （1400-1500℃） and high pressure （5.0-5.5 GPa）. X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy and Raman spec- troscopy are used to determine the chemical composition and bonds of the product. The results show that the product has composition of B0.18C0.64N0.16 （near BC4N） and atomic-level hybrid. X-ray diffraction analysis indicates that the powder has a hexagonal network structure. Scanning and transmission electron microscopy results suggest that h-BCN compound morphology is mainly flaky in width about 1 μm and thickness 200nm.

关 键 词：CARBON NITRIDE FILMS THIN-FILMS B-N BORON BC2N DEPOSITION STATE 

分 类 号：O433.5[机械工程—光学工程]