Transparent Ceramics: Sinterability, Optical Properties and Its Applications
A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".
Deadline for manuscript submissions: closed (10 February 2022) | Viewed by 832
Special Issue Editors
Interests: sialon ceramics; transparent phosphor ceramic plate; luminescence
Special Issue Information
Dear Colleagues,
Transparent polycrystalline ceramics were developed to overcome the limitations of glasses and single crystals. Single crystals have high optical quality and good mechanical properties, but their higher cost and complex production techniques made the material unaffordable. Compared to single crystals, the polycrystalline transparent ceramics show similar optical quality, mechanical and thermal stability, are produced in complex shapes, and are not size limited. Transparent ceramics are high-performance materials applied in the field of solid-state lasers, phosphor ceramic plates for high power solid-state lighting, scintillators, infrared (IR) night vision, IR heat-seeking devices, transparent armor windows, cutting tools, wear and scratch-resistant parts, and synthetic opals and rubies.
In recent years, advanced technologies have been introduced to improve the quality of transparent ceramics. Almost full densification of ceramics is required to get optical grade transparent ceramics. There are many research works that have been carried out to obtain a fine nano-ceramic powder. Moreover, various sintering technologies, such as pressureless sintering, hot press (HP) sintering, hot isostatic pressure (HIP) sintering, and spark plasma sintering, are applied to achieve full densification. The most popular transparent polycrystalline ceramic is yttrium aluminum garnet (YAG), which is applied in laser technology and is commercially available. The most studied transparent ceramics include Al2O3, AlON, rare earth oxides (Re2O3), and spinel (MgAl2O4). There is always a need for novel transparent ceramics with novel optical properties. The fabrication of high-quality transparent ceramics needs high temperature and high pressure, which is not eco-friendly. Therefore, green synthesis technology is of importance.
It is my pleasure to invite the researchers to submit their manuscripts in this Special Issue.
Dr. Bhupendra Joshi
Dr. Gobinda Gyawali
Guest Editors
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Keywords
- transparent ceramics
- oxide ceramics
- non-oxide ceramics
- ceramic processing
- powder synthesis
- sintering
- opical properties
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