Transparent and Luminescent ZnS Ceramics Consolidated by Vacuum Hot Pressing Method
Abstract
In this study, ZnS powders with homogeneous morphology were synthesized using a colloidal processing method. Vacuum hot pressing was subsequently applied to consolidate the ZnS powders into infrared transparent ceramics (77.3% transmittance at wavelengths of 6.74 and 9.29 μm). The phase composition of the sintered ZnS suggests the presence of wurtzite as a minor phase in addition to the primary sphalerite phase, and microstructural analysis indicates that the ceramics are highly densified. It has been found that the VHP‐sintered ZnS ceramics exhibit blue (450 nm) and green (530 nm) luminescence, which is due to the formation of zinc vacancies and sulfur interstitials, respectively, during the sintering process.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 06, 2015
- Source ID
- 10.1111/jace.13781
Entities
People
- Yiquan Wu
- Yiyu Li
Organizations
- Alfred University
- Office of Naval Research