Peculiarities of layered perovskite-related GdSrFeO4 compound solid state synthesis

New DySrAlO4 Compound Synthesis and Formation Process Correlations for LnSrAlO4 (Ln = Nd, Gd, Dy) Series

“…However, the existence and stability of mixed LnMBO 4 oxides (M = alkaline earth metal; B is Al or 3d metal) of K 2 NiF 4 -type phases sets the crystal problem of the MO rock salt (RS) and LnBO 3 perovskite (P) layer adaptability composing of the 1:1 (P/RS) intergrowth structure [10][11][12]. Hence, the K 2 NiF 4 -type structure peculiarity predetermines apparently the synthetic complexities in LnMBO 4 oxides production [10,11,13,14] and thus resulted in restriction or absence of data on numerous P/RS series formation.…”

Thermodynamics and kinetics of non-autonomous phase formation in nanostructured materials with variable functional properties

“…This statement is supported, for instance, by the case of autocatalytic solid-phase reaction of chrysoberyl formation, as described in [138]. A large number of papers, both on the subject of analysis of the activation temperature in sintering and inelastic deformation of materials [139,140] and on that of the analysis of solidphase reaction mechanisms [141][142][143][144][145][146][147][148][149][150][151], show that all these solid-phase processes start in the systems only after the nonautonomous phase has transitioned to a liquid-like state, i.e., they are liquid-phase reactions in a sense, as stated in [75,78]. As another example, we can compare the findings from the study of Ruddlesden-Popper phase formation kinetics from different reagents [151][152][153][154][155][156][157][158][159][160][161][162][163][164][165][166][167][168] with data on the values of some temperature transformations in the Ln 2 O 3 -SrO-Al 2 O 3 system [169][170][171][172][173], in which the compounds are formed that are promising for the production of functional and structural high-temperature materials [174]…”

“…As another example, we can compare the findings from the study of Ruddlesden-Popper phase formation kinetics from different reagents [151][152][153][154][155][156][157][158][159][160][161][162][163][164][165][166][167][168] with data on the values of some temperature transformations in the Ln 2 O 3 -SrO-Al 2 O 3 system [169][170][171][172][173], in which the compounds are formed that are promising for the production of functional and structural high-temperature materials [174][175][176][177][178][179][180]. This comparison has shown that solid-phase reactions are activated in the system considered only after the nonautonomous phases have transited to a liquid-like state, as may be concluded on the basis of these papers [1,15,59,75,[78][79][80][81][82]84,133,[138][139][140]142,…”

Flintstone as a nanocomposite material for photonics

“…This statement is supported, for instance, by the case of autocatalytic solid-phase reaction of chrysoberyl formation, as described in [138]. A large number of papers, both on the subject of analysis of the activation temperature in sintering and inelastic deformation of materials [139,140] and on that of the analysis of solidphase reaction mechanisms [141][142][143][144][145][146][147][148][149][150][151], show that all these solid-phase processes start in the systems only after the nonautonomous phase has transitioned to a liquid-like state, i.e., they are liquid-phase reactions in a sense, as stated in [75,78]. As another example, we can compare the findings from the study of Ruddlesden-Popper phase formation kinetics from different reagents [151][152][153][154][155][156][157][158][159][160][161][162][163][164][165][166][167][168] with data on the values of some temperature transformations in the Ln 2 O 3 -SrO-Al 2 O 3 system [169][170][171][172][173], in which the compounds are formed that are promising for the production of functional and structural high-temperature materials [174]…”

“…As another example, we can compare the findings from the study of Ruddlesden-Popper phase formation kinetics from different reagents [151][152][153][154][155][156][157][158][159][160][161][162][163][164][165][166][167][168] with data on the values of some temperature transformations in the Ln 2 O 3 -SrO-Al 2 O 3 system [169][170][171][172][173], in which the compounds are formed that are promising for the production of functional and structural high-temperature materials [174][175][176][177][178][179][180]. This comparison has shown that solid-phase reactions are activated in the system considered only after the nonautonomous phases have transited to a liquid-like state, as may be concluded on the basis of these papers [1,15,59,75,[78][79][80][81][82]84,133,[138][139][140]…”