TY - JOUR
T1 - Synthesis and structural characterization of ternary compounds belonging to the series RE2+mNi4+mAl15+4m (RE = rare earth metal)
AU - Delsante, Simona
AU - Richter, Klaus
AU - Ipser, Herbert
AU - Borzone, Gabriella
N1 - Delsante, S.a , Richter, K.W.b , Ipser, H.b , Borzone, G.a
a Department of Chemistry and Industrial Chemistry, INSTM, University of Genova, Via Dodecaneso 31, 16146-Genova, Italy
b Department of Inorganic Chemistry / Materials Chemistry, University of Vienna, Wien, Austria
PY - 2009
Y1 - 2009
N2 - The investigation of selected alloys in the Al-rich part of ten RE-Ni-Al systems (RE = rare earth metal) has proved the existence of eight new ternary compounds: five with stoichiometry "R4Ni6Al 23" (mC66-Y4Ni6Al23-type, for RE = Pr, Nd, Tb, Dy, Ho) and three with stoichiometry "R3Ni 5Al19" (oC108-Gd3Ni5Al 19-type, for RE = Sm, Dy and Er). In addition, the existence of R4Ni6Al23 (RE = Ce and Gd) and of Gd 3Ni5Al19 has been confirmed. Lattice parameters have been determined and compared with those previously reported in literature. The samples have been synthesized from pure elements by induction melting, annealed at 800°C and then water quenched. Micrographic characterization was carried out using a light optical microscope (LOM) and a scanning electron microscope (SEM). The structural characterization was performed by X-ray powder diffraction.
AB - The investigation of selected alloys in the Al-rich part of ten RE-Ni-Al systems (RE = rare earth metal) has proved the existence of eight new ternary compounds: five with stoichiometry "R4Ni6Al 23" (mC66-Y4Ni6Al23-type, for RE = Pr, Nd, Tb, Dy, Ho) and three with stoichiometry "R3Ni 5Al19" (oC108-Gd3Ni5Al 19-type, for RE = Sm, Dy and Er). In addition, the existence of R4Ni6Al23 (RE = Ce and Gd) and of Gd 3Ni5Al19 has been confirmed. Lattice parameters have been determined and compared with those previously reported in literature. The samples have been synthesized from pure elements by induction melting, annealed at 800°C and then water quenched. Micrographic characterization was carried out using a light optical microscope (LOM) and a scanning electron microscope (SEM). The structural characterization was performed by X-ray powder diffraction.
U2 - 10.1002/zaac.200800419
DO - 10.1002/zaac.200800419
M3 - Article
SN - 0044-2313
VL - 635
SP - 365
EP - 368
JO - Zeitschrift für Anorganische und Allgemeine Chemie
JF - Zeitschrift für Anorganische und Allgemeine Chemie
IS - 2
ER -