Investigations of Microstructures and Magnetic Properties through Off-time between Pulses and Controlled Cu Content in Pulse Electrodeposited NiCu Nanowires

در اين كار نانوسيم هاي آلياژي NiCu توسط پالس داخل قالب آلومينيوم اكسيد آندي قرار گرفتند. غلظت Cu و Ni ثابت نگه داشته شده و ميزان اسيديته 3 تنظيم گرديد. تاثير پارامترهاي نشست بر روي ميزان Cu و مناطيسيته آلياژ مورد بررسي قرار گرفت. ميكروسكوپ نيروي اتمي براي بررسي مورفولوژي محصول مورد استفاده قرار گرفت. آناليز VSM براي بررسي خصوصيات مغناطيسي مورد استفاده قرار گرفت. نتايج نشان داد با افزايش زمان خاموشي پالس، ميزان مس به عنوان عنصر غيرمغناطيس در آلياژ افزايش مي يابد.

NiCu alloy nanowires arrays were embedded into the anodic aluminum oxide (AAO) template by ac-pulse electrodeposition. Different off-time were used in electrolyte with constant concentration of Ni and Cu and acidity of 3. The effect of deposition parameters on alloy contents was investigated by studying the microstructure and magnetic properties of as-deposited NiCu alloy nanowires. Atomic force microscopy, x-ray analysis were employed to investigate the morphology and microstructure of prepared sample. Vibrating sample magnetometer was also used in order to study the magnetic properties of nanowires array. The obtained results revealed, with increase in off-time, Cu non-magnetic element content increases through electroless process.