【摘要】：用具有消融作用的聚乙烯材料制作約束管,以天然石墨粉為原料進(jìn)行電爆試驗(yàn)。結(jié)果表明,約束管對(duì)電爆炸石墨粉產(chǎn)物具有良好的高溫調(diào)控和約束效果;石墨粉發(fā)生電爆炸,制備產(chǎn)物中存在球形顆粒、多面體顆粒和片層及褶皺狀片層的石墨烯。分析認(rèn)為,球形顆粒是由爆炸瞬間產(chǎn)物中液相凝固形成;多面體顆粒是氣相粒子凝華形成;而爆炸瞬間產(chǎn)生強(qiáng)大的沖擊波,使石墨發(fā)生層狀剝離后形成石墨烯。提高沉積在粉末上的能量密度,制備產(chǎn)物中顆粒狀減少,片層狀增多。
[Abstract]:The restraint tube was made of polyethylene material with ablation effect, and the electric explosion test was carried out with natural graphite powder as raw material. The results show that the confined tube has good high temperature control and restraint effect on the product of electroexplosion graphite powder, and there are spherical particles, polyhedral particles and graphene in the lamellar layer and wrinkled lamellar graphene produced by electric explosion of graphite powder. It is considered that the spherical particles are formed by liquid phase solidification in the product at the moment of explosion, the polyhedral particles are formed by the condensation of gas phase particles, and the strong shock wave is produced at the moment of explosion, which causes graphene to be formed after layered peeling of graphite. By increasing the energy density deposited on the powder, the particles in the prepared products decreased and the lamellae increased.
【作者單位】： 蘭州理工大學(xué)省部共建有色金屬先進(jìn)加工與再利用國家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51264026)
【分類號(hào)】：TQ127.11

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本文編號(hào)：2513505