Effect of astaxanthin concentration on the wear properties of castor oil and wear rate prediction using non-linear regression by pin-on-disk tests. Superficies y Vacío, [S. l.], v. 39, p. 261001, 2026. DOI: 10.47566/2026_syv39_1-261001. Disponível em: https://superficiesyvacio.smctsm.org.mx/index.php/SyV/article/view/2026_syv39_1-261001. Acesso em: 31 oct. 2026.