An investigation of phase stability in the Y2O3-Al2O3 system

Abell, J.S.; Harris, I.R.; Cockayne, B.; Lent, B.

doi:10.1007/bf00551870

Cited by 44 publications

(52 citation statements)

References 10 publications

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“…The stability of YAG from room temperature to the congruent melting point at 1942°C is certain. [13,14] The stability of YAM and YAP is discussed controversial. In former studies they were found to be metastable.…”

Section: Previous Workmentioning

confidence: 99%

Phase Equilibria and Crystal Chemistry in the System CaO-Al2O3-Y2O3

Richter

Göbbels

2010

J. Phase Equilib. Diffus.

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Section: Previous Workmentioning

confidence: 99%

Phase Equilibria and Crystal Chemistry in the System CaO-Al2O3-Y2O3

Richter

Göbbels

2010

J. Phase Equilib. Diffus.

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“…The formation of YAG is described by (1) and is a well known reaction within the chemical system of alumina and yttria. [15][16][17] …”

Section: Resultsmentioning

confidence: 99%

A New Oxidation Protection Strategy for Silicon Carbide Foams

2008

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“…This is partly explained by the crystallization kinetics of the YAG phase [23][24][25], which strongly favor the formation of the metastable perovskite (YAP) phase, and by a high thermodynamic energy barrier to the formation of the garnet phase. Thus direct synthesis of YAG particles on a large scale is difficult, although YAG is known to be the most stable phase of the Y-Al-O material system at room temperature [26].…”

Section: Introductionmentioning

confidence: 99%

Direct Synthesis of Yttrium Aluminum Garnet Particles in an Inductively Coupled Radio-Frequency Plasma System

Jain

Girshick

Heberlein

et al. 2010

Plasma Chem Plasma Process

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Advanced phosphor materials such as cerium-doped yttrium aluminum garnet (YAG) are of interest for a variety of applications, including light-emitting diodes. Previous studies have shown that it is difficult to produce the desired YAG phase without ex-situ annealing irrespective of the synthesis technique used. This study focuses on direct synthesis of YAG phosphor particles using an inductively coupled thermal plasma system with a ceramic tube inserted coaxially into the chamber. Numerical modeling indicates that the tube provides a more uniform high-temperature region, without flow recirculation. This is hypothesized to aid in size and phase control through selective particle collection and in-flight annealing. Experiments conducted with the tube-insertion setup indicate that phase and size control of the particles is possible to a certain extent, depending on the size of the tube. Characterization results of the synthesized particles showed that submicronsized YAG particles are synthesized as the majority phase through the tube-insertion setup.

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An investigation of phase stability in the Y2O3-Al2O3 system

Cited by 44 publications

References 10 publications

Phase Equilibria and Crystal Chemistry in the System CaO-Al2O3-Y2O3

Phase Equilibria and Crystal Chemistry in the System CaO-Al2O3-Y2O3

A New Oxidation Protection Strategy for Silicon Carbide Foams

Direct Synthesis of Yttrium Aluminum Garnet Particles in an Inductively Coupled Radio-Frequency Plasma System

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