Hidayat, I.; Feriyanto, D.; Zakaria, S.; Abdulmalik, S.; Nurato, N.; Romahadi, D. Compound Development As a Protective Layer on Fecral Substrate by a Combination of γ-Al2O3 Ultrasonic and NiO Electroplating Techniques to Improve Thermal Stability. Sinergi 2026, 30, 23-30.