Skip to main content
SpringerLink
Log in

Preparation of Ln3−x Eu x S4 (Ln=Ce, Pr, and Nd) ceramics by pressureless sintering

  • Articles/Inorganic Nonmetallic Material
  • Published:
Chinese Science Bulletin

Abstract

The preparation of ternary rare earth sulfides of Ln3−x Eu x S4 (Ln = Ce, Pr, and Nd) ceramics was investigated, and the effect of Eu substitution on Ln3−x Eu x S4 ceramics was also studied. Ln3−x Eu x S4 powders were synthesized by the sulfurization of their oxide powders using carbon disulfide gas. Ln3−x Eu x S4 ceramics were sintered by pressure-less sintering method. All pressureless sintered Ln3−x Eu x S4 ceramics crystallized in γ-phase. It was found that Eu substitution could improve the density of Ln3−x Eu x S4 ceramics. Furthermore, Eu substitution might narrow the optical band gaps of Ln3−x Eu x S4 ceramics.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Ryan F M, Greenberg I N, Carter F L, et al. Thermoelectric properties of some cerium sulfide semiconductors from 4 to 1300 K. J Appl Phys, 1962, 33: 864–868

    Article  Google Scholar 

  2. Taher S.M., Gruber J.B. Thermoelectric efficiency of rare earth sesquisulfides. Mater Res Bull, 1981, 16: 1407–1412

    Article  Google Scholar 

  3. Takeshita T, Gschneidner K A Jr, Beaudry B J, Preparation of γ-LaSy (1.33<γ<1.50) alloys by the pressure-assisted reaction sintering method and their thermoelectric properties. J Appl Phys, 1985, 57: 4633–4637

    Article  Google Scholar 

  4. Wood C, Lockwood A, Parker J, et al. Thermoelectric properties of lanthanum sulfide. J Appl Phys, 1985, 58: 1542–1547

    Article  Google Scholar 

  5. Gadzhiev G G, Ismailov S M, Khamidov M M, et al. Thermophysical properties of sulfides of lanthanum, praseodymium, gadolinium, and dysprosium. High Temp, 2000, 38: 875–879

    Article  Google Scholar 

  6. Gadzhiev G G, Ismailov S M, Khamidov M M, et al. Thermal and electrical properties of gadolinium sulfides at high temperature. High Temp, 2001, 39: 407–412

    Article  Google Scholar 

  7. Golubkov A V, Kazamin M M, Kaminskii V V, et al. Thermoelectric properties of SmSx (x = 0.8–1.5). Inorg Mater, 2003, 39: 1251–1256

    Article  Google Scholar 

  8. Ohta M, Hirai S, Mori T, et al. Effect of non-stoichiometry on thermoelectric properties of γ-Tb2S3−x . J Alloy Compd, 2006, 418: 209–212

    Article  Google Scholar 

  9. Nakahara J F, Takeshita T, Tchetter M J, et al. Thermoelectric properties of lanthanum sulfide with Sm, Eu, and Yb additives. J Appl Phys, 1988, 63: 2331–2336

    Article  Google Scholar 

  10. Katsuyama S, Tanaka Y, Hashimoto H, et al. Effect of substitution of La by alkaline earth metal on the thermoelectric properties and the phase stability of γ-La3S4. J Appl Phys, 1997, 82: 5513–5519

    Article  Google Scholar 

  11. Yuan H, Zhang J, Yu R, et al. Preparation and thermoelectric properties of ternary rare earth sulfide γ-Ce3−x EuxS4. J Rare Earths, 2008, 26: 817–820

    Article  Google Scholar 

  12. Shannon R D, Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Cryst A, 1976, 32: 751–767

    Article  Google Scholar 

  13. Kortum G, Schreyer G, Validity of the Kubelka-Munk function for reflection spectra with powders. Z Naturforsch, 1957, 11A: 1018–1022

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. MOE Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, 510275, China

    HaiBin Yuan, JianHui Zhang, RuiJin Yu & Qiang Su

  2. Institute of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, 454000, China

    HaiBin Yuan

Authors
  1. HaiBin Yuan
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. JianHui Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. RuiJin Yu
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Qiang Su
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Qiang Su.

About this article

Cite this article

Yuan, H., Zhang, J., Yu, R. et al. Preparation of Ln3−x Eu x S4 (Ln=Ce, Pr, and Nd) ceramics by pressureless sintering. Chin. Sci. Bull. 54, 2694–2697 (2009). https://doi.org/10.1007/s11434-009-0132-4

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11434-009-0132-4

Keywords

Search

Navigation