TY - JOUR
T1 - YPSZ-LSM interactions in spark plasma sintered ceramics
AU - Cortés-Escobedo, Claudia A.
AU - Bolarín-Miró, Ana M.
AU - Jesús, Félix Sánchez De
AU - Portales-Martínez, Benjamín
AU - Vázquez-Díaz, Alma L.
PY - 2012
Y1 - 2012
N2 - The objective of the present study is to analyze the interactions between yttria partially stabilized zirconia and strontium-doped lanthanum manganite (YPSZ-LSM) and lanthanum manganite (LM), after processing by spark plasma sintering. LSM (La1-xSrxMnO3±δ with x = 0.15) and LM (LaMnO3±δ) were obtained by a mechanosynthesis process using two different types of manganese oxide as precursors: MnO (II) and MnO2 (IV). The manganite powders were mixed with YPSZ in a 1:1 weight ratio. The mixed powders were uni-axial compacted at 16 MPa and spark plasma sintered (SPS) at 1000°C and 1300°C. Results of the interaction between YPSZ and LSM were obtained and are reported from XRD and SEM analyses. For samples that have been sintered at 1000°C, only those that contain LM and LSM that has been synthesized from manganese (IV) show the formation of lanthanum zirconate; in contrast, all of the samples that have been sintered at 1300°C give raise to lanthanum zirconate. Cubic zirconia is present at room temperature in 15% Sr-doped lanthanum manganite mixtures (1300°C SPS).
AB - The objective of the present study is to analyze the interactions between yttria partially stabilized zirconia and strontium-doped lanthanum manganite (YPSZ-LSM) and lanthanum manganite (LM), after processing by spark plasma sintering. LSM (La1-xSrxMnO3±δ with x = 0.15) and LM (LaMnO3±δ) were obtained by a mechanosynthesis process using two different types of manganese oxide as precursors: MnO (II) and MnO2 (IV). The manganite powders were mixed with YPSZ in a 1:1 weight ratio. The mixed powders were uni-axial compacted at 16 MPa and spark plasma sintered (SPS) at 1000°C and 1300°C. Results of the interaction between YPSZ and LSM were obtained and are reported from XRD and SEM analyses. For samples that have been sintered at 1000°C, only those that contain LM and LSM that has been synthesized from manganese (IV) show the formation of lanthanum zirconate; in contrast, all of the samples that have been sintered at 1300°C give raise to lanthanum zirconate. Cubic zirconia is present at room temperature in 15% Sr-doped lanthanum manganite mixtures (1300°C SPS).
KW - Lanthanum manganites
KW - Spark plasma sintering
KW - Structure
KW - Yttria stabilized zirconia
UR - http://www.scopus.com/inward/record.url?scp=84866005656&partnerID=8YFLogxK
M3 - Artículo
SN - 1229-9162
VL - 13
SP - 457
EP - 460
JO - Journal of Ceramic Processing Research
JF - Journal of Ceramic Processing Research
IS - 4
ER -