Effects of proton irradiation on the microstructure and mechanical properties of Amosic-3 silicon carbide minicomposites
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2019年第12期
论文作者：Chuanxin Liu Bo Chen Xiaoqiang Li Yahuan Zhao
文章页码：2935 - 2941
摘 要：One dimensional Amosic-3 silicon carbide fiber reinforced silicon carbide matrix composites（SiCf/SiC minicomposites） prepared by chemical vapor infiltration were irradiated with 2.8 Me V proton ions. The ion fluences were 1.0 × 1017 and 1.5 × 1017cm-2 at room temperature and 300?C, respectively. The microstructure and mechanical properties were investigated before and after proton irradiation. Raman spectra showed no evident change in Amosic-3 fibers regardless of irradiation temperature, which is confirmed by high resolution transmission electron microscopy observation. Pyrolytic carbon interphase showed slightly expansion after 300?C irradiation, however, no microstructure changes were observed in SiC matrix. Moreover, it can be deduced that no irradiation induced changes in mechanical properties were observed after present proton irradiation.
Chuanxin Liu，Bo Chen，Xiaoqiang Li，Yahuan Zhao
Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University
摘 要：One dimensional Amosic-3 silicon carbide fiber reinforced silicon carbide matrix composites（SiCf/SiC minicomposites） prepared by chemical vapor infiltration were irradiated with 2.8 Me V proton ions. The ion fluences were 1.0 × 1017 and 1.5 × 1017cm-2 at room temperature and 300?C, respectively. The microstructure and mechanical properties were investigated before and after proton irradiation. Raman spectra showed no evident change in Amosic-3 fibers regardless of irradiation temperature, which is confirmed by high resolution transmission electron microscopy observation. Pyrolytic carbon interphase showed slightly expansion after 300?C irradiation, however, no microstructure changes were observed in SiC matrix. Moreover, it can be deduced that no irradiation induced changes in mechanical properties were observed after present proton irradiation.
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