Plastic deformation of bunsenite (NiO) at temperatures below 1 050 °C

F. Guiberteau , A. Donminguez-Rodriguez , M. Spendel , J. Castaing

Constant strain rate compression tests along < 100 > and < 111 > have been performed on NiO single crystals (ε ∼ 7 x 10-5 s-1). Yield stresses, work hardening rates and thermal activation parameters have been measured between 77 K and 1 323 K. The flow-stress for samples compressed along ( 100 〉 shows an anomaly at the Néel temperature much smaller than the one previously published [3, 5]. The plastic anisotropy is compared to other ionic compounds and the hardening mechanism are discussed based on mechanical data.

Mots clés: nickel compounds; work hardening; yield stress; constant strain rate compression tests; plastic deformation; bunsenite; NiO single; work hardening rates; thermal activation parameters; Neel temperature; plastic anisotropy; hardening mechanism

Domaines: Articles anciens

F. Guiberteau, A. Donminguez-Rodriguez, M. Spendel, J. Castaing. Plastic deformation of bunsenite (NiO) at temperatures below 1 050 °C. Revue de Physique Appliquée, 1986, 21 (2), pp.87-92. ⟨10.1051/rphysap:0198600210208700⟩. ⟨jpa-00245426⟩