Preparation and Application of Transparent Ceramics

A special issue of Inorganics (ISSN 2304-6740).

Deadline for manuscript submissions: 31 December 2025 | Viewed by 562

Special Issue Editor

College of Physics, Sichuan University, Chengdu 610064, China
Interests: luminescent materials; transparent ceramics; radiation shielding and detection; optical thermometry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Transparent ceramics have emerged as a critical class of optical materials, offering unique advantages over transparent single crystals and glass, such as high thermal stability, exceptional mechanical strength, geometric versatility, and doping flexibility. Recent papers have highlighted the broad application prospects of transparent ceramics in a variety of fields, including transparent windows, infrared domes, lamp envelopes, optoelectronic components, composite armors, as well as solid-state lighting and lasers.

This special issue focuses on the recent advances in the preparation, characterization, and application of inorganic transparent ceramics. Topics of interest include, but are not limited to, powder synthesis and sintering techniques (e.g., spark plasma sintering, cold sintering), microstructure control, performance optimization, and emerging applications in laser systems, transparent windows, scintillators, and radiation-resistant optics.

We also welcome original reviews and perspectives that related to the challenges and future prospects of advanced transparent ceramics, and those enhancing their performance and exploring new applications.

By compiling cutting-edge contributions, this special issue aims to promote interdisciplinary discussions and accelerate the development of next-generation transparent ceramics.

Dr. Kailei Lu
Guest Editor

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Keywords

  • inorganic transparent ceramic
  • polycrystalline ceramics
  • nanocomposite ceramics
  • optical materials
  • sintering densification
  • optical properties
  • sintering techniques

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Published Papers (1 paper)

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Research

13 pages, 3753 KiB  
Article
Highly Transparent Yb:Y2O3 Laser Ceramics with High Thermal Conductivity Obtained via a Sintering-Additive-Free Strategy
by Zhongchao Fu, Qiang Wu, Nan Wu, Haibo Long, Jinsheng Li, Yi Ren and Zhaoxia Hou
Inorganics 2025, 13(7), 217; https://doi.org/10.3390/inorganics13070217 - 27 Jun 2025
Viewed by 431
Abstract
Fine-grained Yb:Y2O3 laser ceramics with excellent transmittance and thermal conductivity were fabricated from commercial powders. The process involved aqueous colloidal forming, additive-free air pre-sintering at 1400 °C, and hot isostatic pressing at 1550 °C. Suspensions were prepared with a deionization [...] Read more.
Fine-grained Yb:Y2O3 laser ceramics with excellent transmittance and thermal conductivity were fabricated from commercial powders. The process involved aqueous colloidal forming, additive-free air pre-sintering at 1400 °C, and hot isostatic pressing at 1550 °C. Suspensions were prepared with a deionization process to alleviate the hydrolysis issue, which optimizes the microstructure uniformity and enhances the green compacts’ density after consolidation. The microstructure, in-line transmittance, microhardness, and fracture toughness of the Yb3+-doped Y2O3 ceramics with different concentrations were measured. The 5.0 at% Yb3+-doped Y2O3 ceramic yielded a superior transmittance of 80.1% at 1100 nm and 83.0% in the mid-infrared region. The average grain size was 752 nm. The sample exhibited a thermal conductivity of 9.94 W·m−1·K−1 while achieving a 1076 nm laser output with a 42 mW peak power and 4.3% slope efficiency. Full article
(This article belongs to the Special Issue Preparation and Application of Transparent Ceramics)
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