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研究了含硼石墨ＧＢ１１０（１０ｗｔ．％Ｂ）甲烷（ＣＨ４）的热解吸谱，发现甲烷的解吸谱主要由３个峰构成，估算出了ＣＨ４不同峰值的解吸激活能。为了弄清含硼石墨中甲烷的形成与解吸机理，分别对高纯石墨ＩＳＯ８８０Ｕ和Ｂ４Ｃ涂层进行了热解吸实验，同时对材料的微观结构进行了分析。经过比较，表明甲烷在含硼石墨中的形成与解吸有３个过程：氢离子注入导致甲烷沿气孔内壁形成，并通过石墨内部的微通道向表面自由扩散；被石墨中Ｂ４Ｃ析出物所俘获的氢原子与Ｂ４Ｃ化合物中的碳原子反应，从而生成甲烷并解吸出来；以及石墨晶格俘获的氢原子与碳原子化学反应产生的甲烷，通过体扩散过程解吸。其中前后两个过程起主导作用。
The thermal desorption spectra of methane (CH4) from GB110 (10wt.% B) containing boron graphite were studied. It was found that the desorption spectrum of methane mainly consisted of three peaks, and the desorption activation energies of different peaks of CH4 were estimated. In order to understand the formation and desorption mechanism of methane in boron-containing graphite, the thermal desorption experiments of high-purity graphite ISO880U and B4C coatings were carried out respectively, and the microstructure of the materials was also analyzed. After comparison, it shows that there are three processes of methane formation and desorption in boron-containing graphite: hydrogen ion injection leads to the formation of methane along the inner wall of the pores and free diffusion to the surface through microchannels in graphite; and it is captured by B4C precipitates in graphite The hydrogen atom reacts with the carbon atoms in the B4C compound to generate and desorb the methane; and the methane produced by the chemical reaction between the hydrogen atoms and the carbon atoms captured by the graphite crystal lattice is desorbed by the bulk diffusion process. Which before and after the two processes play a leading role.