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

被引：4
作者：
Sokol, Maxim [1 ]
Kalabukhov, Sergey [1 ]
Frage, Nahum [1 ]
机构：
[1] Ben Gurion Univ Negev, Dept Mat Engn, POB 653, IL-84105 Beer Sheva, Israel
来源：
2017 2ND INTERNATIONAL CONFERENCE ON MATERIALS SCIENCE AND NANOTECHNOLOGY (ICMSNT 2017) / 2017 2ND INTERNATIONAL SYMPOSIUM ON MATERIAL SCIENCE AND TECHNOLOGY (ISMST 2017) | 2017年 / 109卷
关键词：
ABSORBER Q-SWITCH; NONLINEAR ABSORPTION; SATURABLE ABSORBERS; OPTICAL-PROPERTIES; GLASS-CERAMICS; GRAIN-SIZE; PERFORMANCE;
D O I：
10.1051/matecconf/201710903002
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Transparent Co2+ doped MgAl2O4 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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页数：6
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