Functional Properties of Nd:YAG Polycrystalline Ceramics Processed by High-Pressure Spark Plasma Sintering (HPSPS)

Maxim Sokol; Sergey Kalabukhov; Vladimir Kasiyan; Moshe P. Dariel; Nachum Frage

doi:https://doi.org/10.1111/jace.14051

Functional Properties of Nd:YAG Polycrystalline Ceramics Processed by High-Pressure Spark Plasma Sintering (HPSPS)

Maxim Sokol, Sergey Kalabukhov, Vladimir Kasiyan, Moshe P. Dariel, Nachum Frage

Department of Materials Engineering

Ben-Gurion University of the Negev

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

Abstract

High-pressure spark plasma sintering (HPSPS) was employed to fabricate polycrystalline Nd:YAG specimens with desired functional properties. Specimens fabricated under a uniaxial pressure of 300 MPa at 1300°C at a heating rate of 50°C/min and holding time of 60 min displayed submicrometer microstructure and elevated mechanical properties, including resistance to thermal shock. Optical properties (i.e., spectral transmittance, fluorescence emission spectra and fluorescence lifetime) of the HPSPS-processed specimens were close to those obtained with specimens fabricated by conventional sintering procedure. Specifically, remarkable differences in threshold power and laser slope efficiency were found and attributed to the variance in Nd concentration in the specimens tested. The results of this study indicate that the low cost and timesaving HPSPS process allows for the fabrication of polycrystalline Nd:YAG specimens with optical properties suitable for laser applications.

Original language	English
Pages (from-to)	802-807
Number of pages	6
Journal	Journal of the American Ceramic Society
Volume	99
Issue number	3
DOIs	https://doi.org/10.1111/jace.14051
State	Published - 1 Mar 2016

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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title = "Functional Properties of Nd:YAG Polycrystalline Ceramics Processed by High-Pressure Spark Plasma Sintering (HPSPS)",

abstract = "High-pressure spark plasma sintering (HPSPS) was employed to fabricate polycrystalline Nd:YAG specimens with desired functional properties. Specimens fabricated under a uniaxial pressure of 300 MPa at 1300°C at a heating rate of 50°C/min and holding time of 60 min displayed submicrometer microstructure and elevated mechanical properties, including resistance to thermal shock. Optical properties (i.e., spectral transmittance, fluorescence emission spectra and fluorescence lifetime) of the HPSPS-processed specimens were close to those obtained with specimens fabricated by conventional sintering procedure. Specifically, remarkable differences in threshold power and laser slope efficiency were found and attributed to the variance in Nd concentration in the specimens tested. The results of this study indicate that the low cost and timesaving HPSPS process allows for the fabrication of polycrystalline Nd:YAG specimens with optical properties suitable for laser applications.",

author = "Maxim Sokol and Sergey Kalabukhov and Vladimir Kasiyan and Dariel, {Moshe P.} and Nachum Frage",

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T1 - Functional Properties of Nd:YAG Polycrystalline Ceramics Processed by High-Pressure Spark Plasma Sintering (HPSPS)

AU - Sokol, Maxim

AU - Kalabukhov, Sergey

AU - Kasiyan, Vladimir

AU - Dariel, Moshe P.

AU - Frage, Nachum

PY - 2016/3/1

Y1 - 2016/3/1

N2 - High-pressure spark plasma sintering (HPSPS) was employed to fabricate polycrystalline Nd:YAG specimens with desired functional properties. Specimens fabricated under a uniaxial pressure of 300 MPa at 1300°C at a heating rate of 50°C/min and holding time of 60 min displayed submicrometer microstructure and elevated mechanical properties, including resistance to thermal shock. Optical properties (i.e., spectral transmittance, fluorescence emission spectra and fluorescence lifetime) of the HPSPS-processed specimens were close to those obtained with specimens fabricated by conventional sintering procedure. Specifically, remarkable differences in threshold power and laser slope efficiency were found and attributed to the variance in Nd concentration in the specimens tested. The results of this study indicate that the low cost and timesaving HPSPS process allows for the fabrication of polycrystalline Nd:YAG specimens with optical properties suitable for laser applications.

AB - High-pressure spark plasma sintering (HPSPS) was employed to fabricate polycrystalline Nd:YAG specimens with desired functional properties. Specimens fabricated under a uniaxial pressure of 300 MPa at 1300°C at a heating rate of 50°C/min and holding time of 60 min displayed submicrometer microstructure and elevated mechanical properties, including resistance to thermal shock. Optical properties (i.e., spectral transmittance, fluorescence emission spectra and fluorescence lifetime) of the HPSPS-processed specimens were close to those obtained with specimens fabricated by conventional sintering procedure. Specifically, remarkable differences in threshold power and laser slope efficiency were found and attributed to the variance in Nd concentration in the specimens tested. The results of this study indicate that the low cost and timesaving HPSPS process allows for the fabrication of polycrystalline Nd:YAG specimens with optical properties suitable for laser applications.

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Functional Properties of Nd:YAG Polycrystalline Ceramics Processed by High-Pressure Spark Plasma Sintering (HPSPS)

Abstract

All Science Journal Classification (ASJC) codes

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