In this study, tungsten （W） was coated on a copper （Cu） substrate by using doubleglow discharge technique using a pure W panel as the target and argon （Ar） as the discharge and sputtering gas. The crystal struct...In this study, tungsten （W） was coated on a copper （Cu） substrate by using doubleglow discharge technique using a pure W panel as the target and argon （Ar） as the discharge and sputtering gas. The crystal structure of the W coating was examined by X-ray diffraction （XRD）. Scanning electron microscopy （SEM） was performed with cross-section images to investigate the penetration depth of W into the Cu body. Additionally, the properties of wearability resistance, corrosion resistance and mechanical strength of the W coated Cu matrix were also measured. It is concluded that in double-glow plasma, W coated Cu can be facilely prepared. It is noticed that the treatment temperature heavily dominates the properties of the W-Cu composite.展开更多
In this paper,a W-Cu composite coating was prepared on the Cu substrate through the double-glow discharge technology using a pure W plate as a target.In here argon gas was input into the chamber as the discharge and s...In this paper,a W-Cu composite coating was prepared on the Cu substrate through the double-glow discharge technology using a pure W plate as a target.In here argon gas was input into the chamber as the discharge and sputtering gas.The crystal composition and microstructure of W-Cu composite coating were examined by x-ray diffraction(XRD),scanning electron microscopy(SEM).The compose in the cross section was detected by energy dispersive spectrometer(EDS),the distribution of elements along the penetration thickness was then obtained.Then the friction coefficient,the polarization electrochemical corrosion test and the microhardness of W-Cu composite coating was measured.The results indicated that a thick and no-delaminated W-Cu composite coating could be prepared on the Cu substrate by the double-glow plasma technology.展开更多
SiOx and diamond-like carbon(DLC)coatings as the fingerprint resistance and corrosion resistance layers were deposited by capacitively coupled plasma(CCP)-enhanced chemical vapor deposition powered by radio frequency(...SiOx and diamond-like carbon(DLC)coatings as the fingerprint resistance and corrosion resistance layers were deposited by capacitively coupled plasma(CCP)-enhanced chemical vapor deposition powered by radio frequency(RF-PECVD).In here hexamethyldisiloxane(HMDSO)as monomer for SiOx coating,C2H2 as the carbon source for DLC growth precursor,and Ar as the dilution gas were utilized.The important factors affected fingerprint resistance was explored in detail.Besides,the corrosion resistant test on coatings and substrates were then examined by the potentiodynamic polarization measurement and salt-spray corrosion test,respectively.The chemical structure and composition of SiOx and DLC films were analyzed by FTIR,and the relationship between them and anti-corrosion property was discussed.The results show that the DLC coating demonstrates a better anti-fingerprint behavior than that of coated SiOx,especially in acidic solution environment.展开更多
基金supported by National Natural Science Foundation of China (No.11175024)Beijing Natural Science Foundation (Nos.1112012,2011BAD24B01,KM201110015008,KM201010015005 and PHR20110516)
文摘In this study, tungsten （W） was coated on a copper （Cu） substrate by using doubleglow discharge technique using a pure W panel as the target and argon （Ar） as the discharge and sputtering gas. The crystal structure of the W coating was examined by X-ray diffraction （XRD）. Scanning electron microscopy （SEM） was performed with cross-section images to investigate the penetration depth of W into the Cu body. Additionally, the properties of wearability resistance, corrosion resistance and mechanical strength of the W coated Cu matrix were also measured. It is concluded that in double-glow plasma, W coated Cu can be facilely prepared. It is noticed that the treatment temperature heavily dominates the properties of the W-Cu composite.
文摘In this paper,a W-Cu composite coating was prepared on the Cu substrate through the double-glow discharge technology using a pure W plate as a target.In here argon gas was input into the chamber as the discharge and sputtering gas.The crystal composition and microstructure of W-Cu composite coating were examined by x-ray diffraction(XRD),scanning electron microscopy(SEM).The compose in the cross section was detected by energy dispersive spectrometer(EDS),the distribution of elements along the penetration thickness was then obtained.Then the friction coefficient,the polarization electrochemical corrosion test and the microhardness of W-Cu composite coating was measured.The results indicated that a thick and no-delaminated W-Cu composite coating could be prepared on the Cu substrate by the double-glow plasma technology.
基金Beijing Natural Science Foundation(No.1112012),KM201110015008,KM201010015005 and PHR20110516
文摘SiOx and diamond-like carbon(DLC)coatings as the fingerprint resistance and corrosion resistance layers were deposited by capacitively coupled plasma(CCP)-enhanced chemical vapor deposition powered by radio frequency(RF-PECVD).In here hexamethyldisiloxane(HMDSO)as monomer for SiOx coating,C2H2 as the carbon source for DLC growth precursor,and Ar as the dilution gas were utilized.The important factors affected fingerprint resistance was explored in detail.Besides,the corrosion resistant test on coatings and substrates were then examined by the potentiodynamic polarization measurement and salt-spray corrosion test,respectively.The chemical structure and composition of SiOx and DLC films were analyzed by FTIR,and the relationship between them and anti-corrosion property was discussed.The results show that the DLC coating demonstrates a better anti-fingerprint behavior than that of coated SiOx,especially in acidic solution environment.
