Neodymium ion diffusion during sintering of Nd : YAG transparent ceramics

Using an electron microprobe, we measured and characterized the Nd3+ ion diffusion across a boundary between Nd doped and undoped ceramic yttrium aluminium garnet (YAG) for different temperature ramps and hold times and temperatures. The results show significant Nd ion diffusion on the order of micr...

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Bibliographic Details
Published inJournal of physics. D, Applied physics Vol. 42; no. 5; pp. 052001 - 052001 (5)
Main Authors Hollingsworth, Joel P, Kuntz, Joshua D, Soules, Thomas F
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 07.03.2009
Institute of Physics
Subjects
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Materials science
Materials synthesis; materials processing
Physics
Grain boundaries
Grain growth
Impurities
Neodymium additions
Sintering
Doping
Impurity diffusion
Grain boundary migration
YAG
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Summary:Using an electron microprobe, we measured and characterized the Nd3+ ion diffusion across a boundary between Nd doped and undoped ceramic yttrium aluminium garnet (YAG) for different temperature ramps and hold times and temperatures. The results show significant Nd ion diffusion on the order of micrometres to tens of micrometres depending on the time and temperature of sintering. The data fit well a model including bulk diffusion, grain boundary diffusion and grain growth. Grain boundary diffusion dominates and grain growth limits grain boundary diffusion by reducing the total cross-sectional area of grain boundaries.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/42/5/052001