Abstract Fibers of amorphous carbon are deployed as a model system to explore the incidence of flash in electronic conductors. The onset of flash is confirmed by a non-linear rise in conductivity and intense electroluminescence. The electroluminescence spectra are quite different from those seen in oxides. Flash causes a significant transformation of the amorphous carbon into graphite. However, flash also leads to embrittlement of the fibers presumably by the scission of covalent bonds. The fibers were heated with electrical current without using a furnace. The maximum temperature remained just below the melting point of platinum, the metal used for the electrodes.

中文翻译：

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电子导体中的闪光效应：以无定形碳纤维为例

摘要 无定形碳纤维被用作模型系统来探索电子导体中闪光的发生率。电导率的非线性上升和强烈的电致发光证实了闪光的开始。电致发光光谱与在氧化物中看到的完全不同。闪蒸导致无定形碳显着转变为石墨。然而，毛边也可能通过共价键的断裂导致纤维变脆。在不使用炉子的情况下用电流加热纤维。最高温度保持在略低于铂的熔点，铂是用于电极的金属。