Densification of transparent yttrium aluminum garnet (YAG) by SPS processing

Naum Frage; Sergey Kalabukhov; Nataliya Sverdlov; Vladimir Ezersky; Moshe P. Dariel

doi:10.1016/j.jeurceramsoc.2010.08.006

Densification of transparent yttrium aluminum garnet (YAG) by SPS processing

Naum Frage, Sergey Kalabukhov, Nataliya Sverdlov, Vladimir Ezersky, Moshe P. Dariel

Department of Materials Engineering

Research output: Contribution to journal › Article › peer-review

98 Scopus citations

Abstract

Nano-size YAG powder co-mixed with 0.25 wt% LiF was used to fabricate transparent polycrystalline YAG specimens by means of the Spark Plasma Sintering (SPS) technique. The presence of the LiF additive in the initial nano-powder allows obtaining fully dense disc shaped (up to 4. mm thick) transparent specimens at the outcome of a 2 h treatment at 1300°C. The presence of LiF plays a key role in the mass transport related effects during the densification of YAG to full density and also in the elimination of the residual carbon contamination, allowing reaching a level of optical transmittance close to the theoretical value.

Original language	English
Pages (from-to)	3331-3337
Number of pages	7
Journal	Journal of the European Ceramic Society
Volume	30
Issue number	16
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2010.08.006
State	Published - 1 Dec 2010

Keywords

LiF additive
Optical transparency
SPS
YAG

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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10.1016/j.jeurceramsoc.2010.08.006

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title = "Densification of transparent yttrium aluminum garnet (YAG) by SPS processing",

abstract = "Nano-size YAG powder co-mixed with 0.25 wt% LiF was used to fabricate transparent polycrystalline YAG specimens by means of the Spark Plasma Sintering (SPS) technique. The presence of the LiF additive in the initial nano-powder allows obtaining fully dense disc shaped (up to 4. mm thick) transparent specimens at the outcome of a 2 h treatment at 1300°C. The presence of LiF plays a key role in the mass transport related effects during the densification of YAG to full density and also in the elimination of the residual carbon contamination, allowing reaching a level of optical transmittance close to the theoretical value.",

keywords = "LiF additive, Optical transparency, SPS, YAG",

author = "Naum Frage and Sergey Kalabukhov and Nataliya Sverdlov and Vladimir Ezersky and Dariel, {Moshe P.}",

note = "Funding Information: Supported partly by the Israel Ministry of Science , under Grant No. 3-3429 . We wish to express our thanks and appreciation to the FBK – Fondazione Bruno Kessler at Trento, Italy for enabling us to carry out high resolution microstructural identification and, in particular to Dr. Salvatore Gennaro who performed the TOF measurements and analysed the results.",

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doi = "10.1016/j.jeurceramsoc.2010.08.006",

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AU - Frage, Naum

AU - Kalabukhov, Sergey

AU - Sverdlov, Nataliya

AU - Ezersky, Vladimir

AU - Dariel, Moshe P.

N1 - Funding Information: Supported partly by the Israel Ministry of Science , under Grant No. 3-3429 . We wish to express our thanks and appreciation to the FBK – Fondazione Bruno Kessler at Trento, Italy for enabling us to carry out high resolution microstructural identification and, in particular to Dr. Salvatore Gennaro who performed the TOF measurements and analysed the results.

PY - 2010/12/1

Y1 - 2010/12/1

N2 - Nano-size YAG powder co-mixed with 0.25 wt% LiF was used to fabricate transparent polycrystalline YAG specimens by means of the Spark Plasma Sintering (SPS) technique. The presence of the LiF additive in the initial nano-powder allows obtaining fully dense disc shaped (up to 4. mm thick) transparent specimens at the outcome of a 2 h treatment at 1300°C. The presence of LiF plays a key role in the mass transport related effects during the densification of YAG to full density and also in the elimination of the residual carbon contamination, allowing reaching a level of optical transmittance close to the theoretical value.

AB - Nano-size YAG powder co-mixed with 0.25 wt% LiF was used to fabricate transparent polycrystalline YAG specimens by means of the Spark Plasma Sintering (SPS) technique. The presence of the LiF additive in the initial nano-powder allows obtaining fully dense disc shaped (up to 4. mm thick) transparent specimens at the outcome of a 2 h treatment at 1300°C. The presence of LiF plays a key role in the mass transport related effects during the densification of YAG to full density and also in the elimination of the residual carbon contamination, allowing reaching a level of optical transmittance close to the theoretical value.

KW - LiF additive

KW - Optical transparency

KW - SPS

KW - YAG

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U2 - 10.1016/j.jeurceramsoc.2010.08.006

DO - 10.1016/j.jeurceramsoc.2010.08.006

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SN - 0955-2219

VL - 30

SP - 3331

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JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 16

ER -

Densification of transparent yttrium aluminum garnet (YAG) by SPS processing

Abstract

Keywords

ASJC Scopus subject areas

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