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Abstract

The radiation enhanced sublimation (RES) of boron-containing graphites and amorphous boron-containing carbon films (a-C/B:H films) was investigated; the results show that it is not completely suppressed. However, the onset temperature for RES is shifted to higher values compared to carbon, resulting in a reduced yield in a limited temperature range to about 1800 K. The reduction of RES of boron-containing carbon materials depends on the boron content, as well as on the microstructure of the bulk material. Above 1800 K, the thermal sublimation of boron leads to a recovery of RES up to values observed for pure carbon.

Additional information

Authors: VIETZKE E, Institut für Plasmaphysik, Kernforschungsanlage Jülich GmbH, Jülich (DE);PHILIPPS V, Institut für Plasmaphysik, Kernforschungsanlage Jülich GmbH, Jülich (DE);FLASKAMP K, Institut für Plasmaphysik, Kernforschungsanlage Jülich GmbH, Jülich (DE);WINTER J, Institut für Plasmaphysik, Kernforschungsanlage Jülich GmbH, Jülich (DE);VEPREK S, Technische Universität München, Institut für Chemie, Garching (DE)
Bibliographic Reference: Article: Journal of Nuclear Materials, Vol. 176 & 177 (1990) pp. 481-485
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