Morphological, Electrical, and Mechanical Characterization of a Sustainable Three-Phase Composite Based on Natural Rubber, Leather Residue, and PZT Particles. RSD [Internet]. 2025 Oct. 28 [cited 2025 Dec. 9];14(10):e164141049793. Available from: https://www.rsdjournal.org/rsd/article/view/49793