Compositional correlations in the thermal stability of amorphous iron-rare earth metal-boron alloys

1990 ◽  
Vol 117-118 ◽  
pp. 547-550 ◽  
Author(s):  
Jae-Kwan Kim ◽  
Ken-ichi Hirano
Keyword(s):  
Thermal Stability ◽  
Rare Earth ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Amorphous Iron ◽  
Thermal Stability Of

scholarly journals SYNTHESIS, STRUCTUREAND PROPERTIES OF COMPLEX COMPOUNDS OF LANTANOIDES WITH 2-(METHYLAMINO) BENZOIC ACID

2020 ◽  
Vol 3 (28(55)) ◽  
pp. 46-49
Author(s):  
M.H. Shamsutdinova ◽  
N.R. Tashligov ◽  
L.E. Ilyasova
Keyword(s):  
Thermal Stability ◽  
Rare Earth ◽  
Benzoic Acid ◽  
Rare Earth Metal ◽  
Coordination Compounds ◽  
Metal Ion ◽  
Earth Metal ◽  
Complex Compounds ◽  
Carboxyl Group ◽  
Stability Ranges

Synthesis of complex compounds of 2-(methylamino) benzoic acid (L) with ions of samarium (III), europium (III), terbium (III), gadolinium (III) and dysprosium (III). According to elemental analysis and thermogravimetry, the complexes obtained are hydrates of the composition LnL3 • nH2O, where n = 1-5. The area of their thermal stability ranges from 100 ° C to 240 ° C. Electronic and infrared absorptionspectra of the ligand and complexeswith rare-earth metal ions were measured. According to the IR spectra, coordination of the ligand with the metal ion is carried out on the carboxyl group. The carboxyl group is coordinated bidentately. A mercury lampwith a wavelength of 248 nm was used to excite the luminescence. The highest luminescence intensity is observed for the coordination compounds Eu3 +, Tb3 +, and Dy3 +

A Two-dimensional Rare Earth Metal-Organic Polymer {[Pr2(csph)2(H2O)4]·6H2O}n with 3-Carboxylate-4-sulfonatophenolate (csph) Ligands

2010 ◽  
Vol 65 (1) ◽  
pp. 27-31
Author(s):  
Gang Wu ◽  
Zhu-Mei Wang ◽  
Xiu-Tao Ge ◽  
Xiao-Ling Wang ◽  
Qian-Feng Zhang
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Organic Polymer ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Orthorhombic Space Group ◽  
Carboxylate Groups ◽  
Metal Organic ◽  
Thermal Stability Of

A two-dimensional rare earth metal-organic polymer {[Pr2(csph)2(H2O)4]· 6H2O}n (1) with 3- carboxylate-4-sulfonato-phenolate (csph) ligands was obtained by hydrothermal synthesis and characterized by elemental analysis and IR spectroscopy, and also by single-crystal X-ray diffraction. The crystal is orthorhombic, space group Pbcn with a = 15.9113(6), b = 9.3563(4), c = 16.0497(6) Å , Z = 4, and V = 2240.46(16) Å3. The praseodymium atom is coordinated to eight oxygen atoms from the csph3− ligands and two water molecules to form a distorted dodecahedron. The csph3− ligands involved in forming a two-dimensional framework are all multiply bridging via the sulfonate (μ2, η2) and the carboxylate groups (μ3, η2:η1). The thermal stability of complex 1 was studied by thermogravimetric analysis (TGA), and the photoluminescence properties of complex 1 were also investigated

Phase selectivity and tunable photophysical nature of rare earth metal–organic frameworks of EuxY1−x-PTC (H3PTC = 2,4,6-pyridine tricarboxylic acid; x = 0–1)

2020 ◽  
Vol 49 (42) ◽  
pp. 14985-14994
Author(s):  
Xu-Sheng Gao ◽  
Mei-Juan Ding ◽  
Jin Zhang ◽  
Li-Duo Zhao ◽  
Xiao-Ming Ren
Keyword(s):  
Rare Earth ◽  
Solid Solutions ◽  
Rare Earth Metal ◽  
Metal Organic Frameworks ◽  
Earth Metal ◽  
Tricarboxylic Acid ◽  
Excitation Wavelength ◽  
Metal Organic ◽  
Phase Selectivity

All solid solutions (EuxY1−x-PTC, x = 0.013–0.82) are isomorphic to Eu-PTC, but different from Y-PTC, and show phase selectivity as well as excitation wavelength dependent emission.

scholarly journals Experimental Investigation of WE54 magnesium rare earth metal alloys by ageing treatment

2021 ◽  
Vol 1104 (1) ◽  
pp. 012025
Author(s):  
Sachendra ◽  
Shailesh Kumar Singh ◽  
Ujjwal ◽  
Satyajeet Kumar ◽  
Kuldeep Singh
Keyword(s):  
Experimental Investigation ◽  
Rare Earth ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Metal Alloys ◽  
Ageing Treatment
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