Spark plasma sintering of zirconia/nano-nickel composites Carlos F. Gutierrez-Gonzalez, Nestor W. Solis Pinargote, Said Agouram, Pavel Y. Peretyagin, Sonia Lopez-Esteban and Ramon Torrecillas Mechanics & Industry, 16 7 (2015) 703 Published online: 30 November 2015 DOI: 10.1051/meca/2015090