研究目的
Investigating the effects of ultrasonic power and current density on the electrodeposition of Fe-Ni films for OLED mask making, focusing on improving surface quality and reducing thermal expansion.
研究成果
The research successfully demonstrated that ultrasonic-assisted electrodeposition can produce Fe-Ni films with improved surface quality and reduced thermal expansion for OLED mask making. Optimal conditions were identified at an ultrasonic power of 93 W and a current density of 1 A/dm2, yielding films with desirable properties.
研究不足
The study is limited by the technical constraints of ultrasonic power and current density settings, which may not cover all potential variations in electrodeposition conditions. Additionally, the transient cavitation effect at higher ultrasonic powers could negatively impact film quality.
1：Experimental Design and Method Selection:
The study utilized ultrasonic-assisted electrodeposition to fabricate Fe-Ni films, examining the effects of varying ultrasonic powers and current densities.
2：Sample Selection and Data Sources:
Fe-Ni films with a thickness of 50 ± 5 μm were electrodeposited under different conditions.
3：List of Experimental Equipment and Materials:
Equipment included a scanning electron microscopy (S3400 N, HITACHI), rough meter (M2, Mahr), intelligent digital tester (HXS-1000A, HAOWEI), X-ray diffraction (Focus D8, BRUKEK), and Nano Indenter (XP, MTS). Materials included NiSO4·6H2O, FeSO4·7H2O, H3BO3, NiCl2, saccharin, reducing agent, and wetting agent.
4：Experimental Procedures and Operational Workflow:
The electrodeposition process was conducted with varying ultrasonic powers and current densities, followed by property tests including surface morphology, iron content, roughness, micro-hardness, and Young's modulus.
5：Data Analysis Methods:
Data were analyzed using Jade software for grain size estimation and the Scherrer equation for crystalline grain size calculation.
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