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| 1 | TiO_(2)纳米颗粒对7075铝合金表面等离子体电解氧化涂层性能的影响显示文摘采用等离子体电解氧化(PEO)技术,利用单极脉冲波形在含有胶体TiO_(2)纳米颗粒的溶胶电解液中制备Al_(2)O_(3)−TiO_(2)复合涂层。溶胶溶液是将1、3和5 g/L的草酸钛酸钾(PTO)溶解在硅酸盐溶液中制得。利用扫描电镜、能量色散光谱、X射线衍射和拉曼光谱对涂层进行表征。采用极化和阻抗技术研究涂层的腐蚀行为。结果表明,TiO_(2)通过微放电方式进入涂层,并掺杂到氧化铝相中。TiO_(2)掺入量较高时,表面微孔减少;反之,掺入量较低时则微孔增多。TiO_(2)含量越高,涂层的外层越致密,内层越厚。电化学测试结果表明,与在不含PTO溶液中制备的涂层相比,在含3 g/L PTO溶液中制备的涂层腐蚀性能得到大幅提高。在不含PTO溶液中制备的涂层含有γ-Al_(2)O_(3),δ-Al_(2)O_(3)和非晶相,而PTO的存在促进α-Al_(2)O_(3)的生成。 | Mehri HASHEMZADEH Keyvan RAEISSI Fakhreddin ASHRAFIZADEH Amin HAKIMIZAD Monica SANTAMARIA | 2021 | Transactions of Nonferrous Metals Society of China2021，31，12： | 2 |
| 2 | Electrophoretic deposition of nanostructured hydroxyapatite coating on AZ91 magnesium alloy implants with different surface treatments显示文摘 | Ramin Ptojaee Mohammadhossein Fathi Keyvan Raeissi | 2013 | Applied Surface Science2013，285，15： | 1 |
| 3 | Electrophoretic deposition of nanostructured hydroxyapatite coating on AZ91 magnesium alloy implants with different surface treatments显示文摘 | RAMIN ROJAEE MOHAMMADHOSSEIN FATHI KEYVAN RAEISSI | 2013 | Applied Surface Science2013，，285： | 1 |
| 4 | Controlling the degradation rate of AZ91 magnesium alloy via sol-gel derived nanostructured hydroxyapatite coating显示文摘 | RAMIN ROJACE MOHAMMADHOSSEIN FATHI KEYVAN RAEISSI | 2013 | Materials Science and Engineering C2013，，33： | 1 |
| 5 | Corrosion and wear resistance of coatings produced on AZ31 Mg alloy by plasma electrolytic oxidation in silicate-based K2TiF6 containing solution:Effect of waveform显示文摘In this research,plasma electrolytic oxidation coatings were prepared on AZ31 Mg alloy in a silicate-based solution containing K_(2)TiF_(6) using bipolar and soft sparking waveforms with 10,20,and 30%cathodic duty cycles.The coatings displayed a net-like surface morphology consisted of irregular micro-pores,micro-cracks,fused oxide particles,and a sintered structure.Due to the incorporation of TiO_(2) colloidal particles and the cathodic pulse repair effect,most of the micro-pores were sealed.Long-term corrosion performance of the coatings was investigated using electrochemical impedance spectroscopy during immersion in 3.5 wt.%NaCl solution up to 14 days.The coating grown by the soft sparking waveform with a 20%cathodic duty cycle having the lowest porosity(6.2%)and a sharp layer concentrated in F element at the substrate/coating interface shows the highest corrosion resistance.The friction coefficient of this coating has remained stable during the sliding even under 5 N normal load,showing relatively higher wear resistance than other coatings.The coating produced using the equivalent unipolar waveform,as the reference specimen,showed the highest friction coefficient and the lowest wear resistance despite its highest micro-hardness. | Maryam Rahmati Keyvan Raeissi Mohammad Reza Toroghinejad Amin Hakimizad Monica Santamaria | 2022 | Journal of Magnesium and Alloys2022，10，9： | 0 |
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