“Investigation on the Micro Hardness of Electroless Ni-P Duplex Coatings Reinforced With ZnO, Al2O3, and SiC Particles ”. International Journal of Engineering Research and Science & Technology 18, no. 1 (March 25, 2022): 67–73. Accessed July 27, 2026. https://ijerst.org/index.php/ijerst/article/view/108.