TY - JOUR
T1 - Microstructure and mechanical properties of Ba0.5Sr0.5Co0.8Fe0.2O3-δ perovskite-structured oxides doped with different contents of Ni
AU - Wang, Li
AU - Dou, Rui
AU - Li, Yizhe
AU - Bai, M.
AU - Hall, David
AU - Chen, Ying
PY - 2016/3/21
Y1 - 2016/3/21
N2 - Microstructural evolution and mechanical properties of Ba0.5Sr0.5(Co0.8Fe0.2)1−XNiXO3−δ with X=0, 2, 4, 6, 8, 15, 20, and 25 mol% have been systematically investigated. The porosity increases from 4.0% to 17% with increasing the content of Ni doping from 0 to 25 mol%. Meanwhile, the grain size decreases from 22.5 to 5 µm. All the samples are indexed to be a single cubic phase when the Ni doping content is below 25 mol%. Otherwise, secondary phases (NiO) are found along grain boundaries and inside grains. Hardness and Young's modulus first increase with increasing the content of Ni doping from 0 to 8 mol% and then both decrease with the further increase in the content of Ni doping. The fracture toughness increases with increasing the content of Ni doping from 0 to 20 mol%. However, it decreases with further increasing the content of Ni doping due to the increase in porosity.
AB - Microstructural evolution and mechanical properties of Ba0.5Sr0.5(Co0.8Fe0.2)1−XNiXO3−δ with X=0, 2, 4, 6, 8, 15, 20, and 25 mol% have been systematically investigated. The porosity increases from 4.0% to 17% with increasing the content of Ni doping from 0 to 25 mol%. Meanwhile, the grain size decreases from 22.5 to 5 µm. All the samples are indexed to be a single cubic phase when the Ni doping content is below 25 mol%. Otherwise, secondary phases (NiO) are found along grain boundaries and inside grains. Hardness and Young's modulus first increase with increasing the content of Ni doping from 0 to 8 mol% and then both decrease with the further increase in the content of Ni doping. The fracture toughness increases with increasing the content of Ni doping from 0 to 20 mol%. However, it decreases with further increasing the content of Ni doping due to the increase in porosity.
KW - BSCF
KW - Mechanical property
KW - Microstructure
KW - Ni doping
KW - Secondary phase
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-84957676604&partnerID=MN8TOARS
U2 - 10.1016/j.msea.2016.02.008
DO - 10.1016/j.msea.2016.02.008
M3 - Article
VL - 658
SP - 280
EP - 288
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
ER -