4.7 Article

Transmitting, emitting and controlling light: Processing of transparent ceramics using current-activated pressure-assisted densification

Journal

SCRIPTA MATERIALIA
Volume 69, Issue 2, Pages 149-154

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2013.02.013

Keywords

Spark plasma sintering (SPS); Field-activated sintering technique (FAST); Optical ceramics; Luminescent materials

Funding

  1. National Science Foundation (NSF) [DMR 0956071]
  2. Direct For Mathematical & Physical Scien [0956071] Funding Source: National Science Foundation
  3. Division Of Materials Research [0956071] Funding Source: National Science Foundation

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We review recent advances in using current-activated pressure-assisted densification (CAPAD) for fabricating polycrystalline ceramics that are transparent to visible and infrared light. In addition, we discuss important one-dimensional (vacancies), two-dimensional (grain boundaries) and three-dimensional (pores) defects that can affect optical properties. We pay special attention to procedures whereby the benefits of CAPAD can be used to ensure the precise control of microstructure that facilitates transparency and other functionalities. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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