Zongyue Xing, Jingcheng Wang, Huamei Sun. A study of defects and hydrogen behavior in the high-speed Ni selective plating layer by positron annihilation[J]. Nuclear techniques, 1990, 13(3): 148-152.
Zongyue Xing, Jingcheng Wang, Huamei Sun. A study of defects and hydrogen behavior in the high-speed Ni selective plating layer by positron annihilation[J]. Nuclear techniques, 1990, 13(3): 148-152.DOI:
A high-speed Ni selective plating treated at different temperatures was studied by measuring S-parameter of Doppler-broadening spectrum and hydrogen content in addition to X-ray diffraction
electron diffraction
scaning electron microscope and transmission electron microscope. The results show that the material may have high density of defects.The dsfects can be distinctly divided into two types
sensitive to and not sensitive to hydrogen. Because of the particularity of the selective plating process the hydrogen proton screening effect of defects in the layer was not observed by measuring the parameters of positron annihilation.
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