Fabrication of Polycrystalline Transparent Co+2: MgAl2O4 by a Combination of Spark Plasma Sintering (SPS) and Hot Isostatic Pressing (HIP) Processes

Maxim Sokol; Sergey Kalabukhov; Nahum Frage

doi:10.1051/matecconf/201710903002

Fabrication of Polycrystalline Transparent Co⁺²: MgAl₂O₄ by a Combination of Spark Plasma Sintering (SPS) and Hot Isostatic Pressing (HIP) Processes

Maxim Sokol, Sergey Kalabukhov, Nahum Frage

Department of Materials Engineering

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

Transparent Co²⁺ doped MgAl₂O_b4 spinel was fabricated by SPS consolidation followed by and HIP treatment. It was established that HIP treatment significantly improved transparency of the ceramic in a wide range of wavelengths, especially, in a range, which is relevant for Q-switching. Nonlinear absorption was demonstrated and the ground and excited state absorption cross sections were estimated. The positive effect of the HIP treatment on the optical properties is related to an elimination of extremely fine porosity and to the location of Co ions at Mg²⁺sites in the spinel ionic structure. The experimental results indicate that the fabricated specimens can be used as a passive laser Q-switching material.

Original language	English
Article number	03002
Journal	MATEC Web of Conferences
Volume	109
DOIs	https://doi.org/10.1051/matecconf/201710903002
State	Published - 31 May 2017
Event	2nd International Conference on Materials Science and Nanotechnology, ICMSNT 2017 and 2017 2nd International Symposium on Material Science and Technology, ISMST 2017 - Auckland, New Zealand Duration: 19 Apr 2017 → 22 Apr 2017

ASJC Scopus subject areas

General Chemistry
General Materials Science
General Engineering

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title = "Fabrication of Polycrystalline Transparent Co+2: MgAl2O4 by a Combination of Spark Plasma Sintering (SPS) and Hot Isostatic Pressing (HIP) Processes",

abstract = "Transparent Co2+ doped MgAl2Ob4 spinel was fabricated by SPS consolidation followed by and HIP treatment. It was established that HIP treatment significantly improved transparency of the ceramic in a wide range of wavelengths, especially, in a range, which is relevant for Q-switching. Nonlinear absorption was demonstrated and the ground and excited state absorption cross sections were estimated. The positive effect of the HIP treatment on the optical properties is related to an elimination of extremely fine porosity and to the location of Co ions at Mg2+sites in the spinel ionic structure. The experimental results indicate that the fabricated specimens can be used as a passive laser Q-switching material.",

author = "Maxim Sokol and Sergey Kalabukhov and Nahum Frage",

note = "Publisher Copyright: {\textcopyright} 2017 The Authors, published by EDP Sciences.; 2nd International Conference on Materials Science and Nanotechnology, ICMSNT 2017 and 2017 2nd International Symposium on Material Science and Technology, ISMST 2017 ; Conference date: 19-04-2017 Through 22-04-2017",

year = "2017",

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T1 - Fabrication of Polycrystalline Transparent Co+2

T2 - 2nd International Conference on Materials Science and Nanotechnology, ICMSNT 2017 and 2017 2nd International Symposium on Material Science and Technology, ISMST 2017

AU - Sokol, Maxim

AU - Kalabukhov, Sergey

AU - Frage, Nahum

PY - 2017/5/31

Y1 - 2017/5/31

N2 - Transparent Co2+ doped MgAl2Ob4 spinel was fabricated by SPS consolidation followed by and HIP treatment. It was established that HIP treatment significantly improved transparency of the ceramic in a wide range of wavelengths, especially, in a range, which is relevant for Q-switching. Nonlinear absorption was demonstrated and the ground and excited state absorption cross sections were estimated. The positive effect of the HIP treatment on the optical properties is related to an elimination of extremely fine porosity and to the location of Co ions at Mg2+sites in the spinel ionic structure. The experimental results indicate that the fabricated specimens can be used as a passive laser Q-switching material.

AB - Transparent Co2+ doped MgAl2Ob4 spinel was fabricated by SPS consolidation followed by and HIP treatment. It was established that HIP treatment significantly improved transparency of the ceramic in a wide range of wavelengths, especially, in a range, which is relevant for Q-switching. Nonlinear absorption was demonstrated and the ground and excited state absorption cross sections were estimated. The positive effect of the HIP treatment on the optical properties is related to an elimination of extremely fine porosity and to the location of Co ions at Mg2+sites in the spinel ionic structure. The experimental results indicate that the fabricated specimens can be used as a passive laser Q-switching material.

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DO - 10.1051/matecconf/201710903002

M3 - Conference article

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SN - 2261-236X

VL - 109

JO - MATEC Web of Conferences

JF - MATEC Web of Conferences

M1 - 03002

Y2 - 19 April 2017 through 22 April 2017

ER -

Fabrication of Polycrystalline Transparent Co⁺²: MgAl₂O₄ by a Combination of Spark Plasma Sintering (SPS) and Hot Isostatic Pressing (HIP) Processes

Abstract

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