| 1 | X-Ray Photoelectron Spectroscopy Study of the Metal/Cermet Interface显示文摘Interfacial reactions between aluminium and polycrystalline cermet TiC_(0.6) were investigated using x-ray photoelectron spectroscopy,Auger electron spectroscopy and x-ray diffraction.It was found that titanium exists in two chemical states.The carbide and oxide of titanium can be detected simultaneously,and the atomic ratio of Ti:C:O is 5:3:2.This suggests that TiC^(0.6) is a Ti-oxycarbide or oxygenated TiC composite:Ti_(5)C_(3)O_(2)(TiO_(2)+4TiC_(0.75)).When Al is deposited in vacuum on the Ti-oxycarbide surface,the active Al atoms react chemically only with TiO_(2) at room temperature,but not with Tico.75 in Ti-oxycarbide.The reaction products are Al2O3 and theintermetallic compound Als Ti.Annealing the Al/TiC_(0.6) interface at 750℃,Al reacts also with TiC_(0.75) to form a brittle Al_(4)C_(3) phase. | 陆华 沈电洪 薛其坤 M.Polak N.Froumin | 2001 | Chinese Physics Letters2001，18，1： | 0 |
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