Results 71 to 80 of about 7,996 (167)
Origin of carbonatite-related niobium deposits: Insights from pyrochlore geochemistry
The carbonatite-related Nb deposits of the Alto Parana & iacute;ba Igneous Province (APIP) in central Brazil, currently account for similar to 92 % of the global Nb production.
Velasquez-Ruiz, Felipe +6 more
core +1 more source
Clarification of status of species in the pyrochlore supergroup
, 2013 After careful consideration of the semantics of status categories for mineral species names, minor corrections and disambiguations are presented for a recent report on the nomenclature of the pyrochlore supergroup.
Atencio, D., Christy, A. G.
core +1 more source
A mineralogical study of pyrochlore and betafite.
, 1959 Pyrochlore has been found in many localities and promises to be an important source of niobium. Betafite is also widespread in occurrence and has been mined intermittently in Madagascar as a minor uranium ore; in other localities it does not seem to ...
Hogarth, Donald. D.
core
The synthesis and characterisation of pyrochlore frameworks
, 2010 Structural studies have been undertaken on a wide range of pyrochlore phases, with afocus on garnering a better understanding of the factors determining the formation andbehavior of these materials.
Simon, Charles Francis
core +1 more source
The spin-1/2 Heisenberg ferromagnet on the pyrochlore lattice: A Green's function study
Condensed Matter Physics, 2018 We consider the pyrochlore-lattice quantum Heisenberg ferromagnet and discuss the properties of this spin model at arbitrary temperatures. To this end, we use the Green's function technique within the random-phase (or Tyablikov) approximation as well as ...
T. Hutak +4 more
doaj +1 more source
Pyrochlore compounds with lanthanides
Tato bakalářská práce je věnována studiu pyrochlorových sloučenin s lanthanoidy. Je zde popsána struktura, možnosti jejich syntézy a důležité vlastnosti, kterých se hojně využívá v moderních technologiích.
Koláčková, Iva
core +1 more source
ChemistryThe phase-pure cubic pyrochlore of the Bi2Cr0.5Co0.5Nb2O9+Δ composition can be successfully synthesized by a modified sol–gel method (Pecini method-PM) and a traditional solid-phase method (SPM).
Nadezhda A. Zhuk +5 more
doaj +1 more source
Strain engineered pyrochlore at high pressure
, 2017 Strain engineering is a promising method for next-generation materials processing techniques. Here, we use mechanical milling and annealing followed by compression in diamond anvil cell to tailor the intrinsic and extrinsic strain in pyrochlore, Dy2Ti2O7
Sulgiye Park +6 more
core +1 more source
'CHEMICAL ASSEMBLY' SYNTHESIS OF PIEZO-PHASE NANOSIZE POWDERS USED FOR PIEZO-CERAMICS MANUFACTURING
Вестник Донского государственного технического университета, 2018 'Chemical assembly' method of the nanoprecursors multifunctional matrixes which skeleton structure is similar to the structure of a final reaction product is developed.
Larisa E. PUSTOVAYA +3 more
doaj