Phase formation in yttrium aluminum garnet powders synthesized by chemical methods

@article{Sim2000PhaseFI,
  title={Phase formation in yttrium aluminum garnet powders synthesized by chemical methods},
  author={S. M. Sim and Kristin A. Keller and T. Mah},
  journal={Journal of Materials Science},
  year={2000},
  volume={35},
  pages={713-717}
}
Yttrium aluminum garnet (YAG) powders were synthesized by precipitation of hydroxides using three types of precursors: nitrates (nitrate process), isopropoxides (alkoxide process), and isopropoxides chelated with ethyl acetoacetate (modified alkoxide process). The phase development in the powders during heat treatments was investigated with DTA and XRD. An intermediate hexagonal YAlO3 (YAH) phase was formed at 800°C in all powders regardless of the synthesis processes, but its complete… 
Synthesis and Characterization of Ce3+:YAG Phosphors by Heterogeneous Precipitation Using Different Alumina Sources
Ce3+-doped yttrium aluminum garnet (Ce:YAG) phosphor powders were synthesized by heterogeneous precipitation process using three different aluminum sources: α-phase, θ-phase, and boehmite (AlOOH).
Synthesis of Cerium‐Activated Yttrium Aluminate Based Fine Phosphors by an Aerosol Route
Polycrystalline fine powders of yttrium aluminate doped with Ce3+ were synthesised by spray pyrolysis of a polymeric precursor, which was obtained by dissolving the corresponding nitrates in a
Synthesis and Phase Transformation Behavior of YAG Powders by a Mechanochemical Solid Reaction
Yttrium aluminum garnet (YAG) powders were synthesized via mechanochemical solid reaction using with three types of aluminum compounds. reacted mechanochemically with all A1 compounds and formed YAM
Synthesis of Y3Fe5O12 (YIG) assisted by high-energy ball milling
Yttrium iron garnet, Y3Fe5O12 (YIG) powders were synthesized by mechanochemical processing (MCP) from Fe2O3 and Y2O3, followed by an annealing. The aim of this work was to demonstrate that MCP
Phase transformations upon the synthesis of Y3Al5O12:Nd
Methods of X-ray diffraction and thermal analysis have been used to study the processes of the formation of activated yttrium aluminum garnet Y3Al5O12:Nd (YAG:Nd) upon the thermal decomposition of
Y3Fe5O12 Prepared by Mechanosynthesis from Different Iron Sources
Yttrium iron garnet, Y3Fe5O12 (YIG) powders were synthesized by mechanochemical processing (MCP) from different iron sources (FeO, Fe2O3 and Fe3O4) mixed with Y2O3, followed by a heat treatment.
Phase evolution of YAG powders obtained by gel combustion combined with field-assisted rapid synthesis technique
Abstract Yttrium aluminum garnet (YAG) nanopowders were synthesized by a novel method combining gel combustion and field-assisted rapid synthesis technique. It is noted that hexagonal YAlO 3 (YAH) is
Preparation of YAG:Ce spheroidal phase-pure particles by solvo-thermal method and their photoluminescence
Abstract Cerium-doped yttrium aluminum garnet (YAG:Ce) powder was synthesized by a solvo-thermal method under mild conditions with inexpensive aluminum and yttrium nitrates as the starting materials
Y 3 Fe 5 O 12 Prepared by Mechanosynthesis from Different Iron Sources
Yttrium iron garnet, Y3Fe5O12 (YIG) powders were synthesized by mechanochemical processing (MCP) from different iron sources (FeO, Fe2O3 and Fe3O4) mixed with Y2O3, followed by a heat treatment. The
Crystallization kinetics of glass microspheres with yttrium aluminium garnet (YAG) composition
A combination of sol–gel Pechini method and flame synthesis was used to prepare yttrium aluminate glass microspheres with the garnet composition (YAG, 62.5 mol% aluminium oxide, 37.5 mol% yttrium
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 12 REFERENCES
Synthesis of yttrium aluminum garnet from yttrium and aluminum isobutyrate precursors
Mixtures of yttrium and aluminum isobutyrates, M(O2CCHMe2)3= M(O2CiPr)3 (M = Y or Al), were examined as precursors for processing yttrium aluminum garnet (YAG, A15Y3O12). Both precursors were
An investigation of phase stability in the Y2O3-Al2O3 system
The stability of the three known phases in the Y2O3-Al2O3 pseudo-binary system has been investigated. YAlO3 (YAP) and Y4Al2O9 (YAM) decompose at elevated temperatures, the products of the reaction
Phase Development and Luminescence in Chromium‐Doped Yttrium Aluminum Garnet (YAG:Cr) Phosphors
The phase development and luminescence of chromium-doped yttrium aluminum garnet (Y3Al5O12:Cr or YAG:Cr) phosphors, prepared by both a chemical precipitation technique and a solid-state reaction,
Coprecipitation of yttrium and aluminium hydroxide for preparation of yttrium aluminium garnet
Coprecipitation of yttrium and aluminium hydroxide for the preparation of pure yttrium aluminium garnet (YAG) powder with small grain size is the subject of this study. Starting materials are
Formation of alkoxy-derived yttrium aluminium oxides
Monoclinic Y4Al2O9 and hexagonal YAlO3 crystallize at low temperatures from amorphous materials prepared by the hydrolysis of yttrium and aluminium double alkoxides. Hexagonal YAlO3 transforms to the
Stable and Metastable Equilibria in the Systems Y2O2-Al2O3, and Gd2O3-Fe2O3
The phase equilibrium relations in the systems Y2O3-Al2O3 and Gd2O3-Fe2O3 were examined. Each system has two stable binary compounds. A 3:s molar ratio garnet-type compound exists in both systems.
Fabrication of Polycrystal line, Transparent YAG Ceramics by a Solid‐State Reaction Method
Polycrystalline, transparent YAG (Y{sub 3}Al{sub 5}O{sub 12}) ceramics were fabricated by a solid-state reaction method using high-purity Al{sub 2}O{sub 3} and Y{sub 2}O{sub 3} powders. The mixed
Creep Mechanism of Polycrystalline Yttrium Aluminum Garnet
The high-temperature deformation behavior of a fine-grained polycrystalline yttrium aluminum garnet (YAG) was studied in the temperature range of 1400° to 1610°C using constant strain rate
Fabrication and Optical Properties of High‐Performance Polycrystalline Nd:YAG Ceramics for Solid‐State Lasers
Transparent polycrystalline YAG with nearly the same optical characteristics as those of a single crystal were fabricated by a solid-state reaction method using high-purity powders (>99.99 wt%
Translucent Y3Al5O12 ceramics
Abstract The sintering of Y 3 Al 5 O 12 to full density and translucency using either SiO 2 or MgO as a dopant is described. The resulting ceramics have a regular microstructures and low optical
...
1
2
...