Publication detail

Transparent LiOH-doped magnesium aluminate spinel produced by spark plasma sintering: Effects of heating rate and dopant concentration

POUCHLÝ, V. TALIMIAN, A. KAŠTYL, J. CHVÍLA, M. ŠČASNOVIČ, E. BELTRAN, A. LOZANO, J. GALUSEK, D.

Original Title

Transparent LiOH-doped magnesium aluminate spinel produced by spark plasma sintering: Effects of heating rate and dopant concentration

Type

journal article in Web of Science

Language

English

Original Abstract

The effects of LiOH doping of magnesium aluminate spinel powders and various Spark Plasma Sintering (SPS) schedules on densification behavior and final transparency of polycrystalline magnesium aluminate spinel were studied. Two commercial magnesium aluminate spinel powders, with different specific surface areas, were doped with up to 0.6 wt% of LiOH and consolidated using SPS with slow (2.75 degrees C/min) and fast (100 degrees C/min) heating rates. The slow heating rate was optimal for undoped magnesium aluminate spinel (LiOH-free) with the best real in-line transmittance (RIT) of 84.8% (measured at 633 nm on a disc 0.8 mm thick). For the magnesium aluminate spinel doped with 0.3 wt% of LiOH, the fast heating rate was beneficial, and an RIT of 76.5% was achieved. mu-Raman analysis confirmed that the addition of LiOH suppressed carbon contamination.

Keywords

Spark plasma sintering; MgO spinel; Optical properties

Authors

POUCHLÝ, V.; TALIMIAN, A.; KAŠTYL, J.; CHVÍLA, M.; ŠČASNOVIČ, E.; BELTRAN, A.; LOZANO, J.; GALUSEK, D.

Released

1. 7. 2023

Publisher

Elsevier

Location

OXFORD

ISBN

1873-619X

Periodical

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY

Year of study

43

Number

8

State

United Kingdom of Great Britain and Northern Ireland

Pages from

3544

Pages to

3552

Pages count

9

URL

https://www.sciencedirect.com/science/article/pii/S0955221923000729

Full text in the Digital Library

http://hdl.handle.net/11012/213604

BibTex

@article{BUT184139,
  author="Václav {Pouchlý} and Ali {Talimian} and Jaroslav {Kaštyl} and Martin {Chvíla} and Erik {Ščasnovič} and Ana Maria {Beltran} and Juan Gabriel {Lozano	} and Dušan {Galusek}",
  title="Transparent LiOH-doped magnesium aluminate spinel produced by spark plasma sintering: Effects of heating rate and dopant concentration",
  journal="JOURNAL OF THE EUROPEAN CERAMIC SOCIETY",
  year="2023",
  volume="43",
  number="8",
  pages="3544--3552",
  doi="10.1016/j.jeurceramsoc.2023.01.059",
  issn="1873-619X",
  url="https://www.sciencedirect.com/science/article/pii/S0955221923000729"
}