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Journal of Inorganic Materials

Journal of Inorganic Materials >

2009 , Vol. 24 >Issue 4: 764 - 768

DOI: https://doi.org/10.3724/SP.J.1077.2009.00764

Research Paper

Effects of Precipitants on the Properties of Nd3+∶Lu2O3 Nano-powders

  • ZHOU Ding ,
  • SHI Ying ,
  • YUN Ping ,
  • XIE Jian-Jun
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  • Department of Electronics and Information Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China

Received date: 2008-10-21

  Revised date: 2009-01-16

  Online published: 2009-07-20

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Abstract

Neodymium doped lutetia nanocrystalline powders were synthesized by a wet chemical processing using three different precipitants, i.e. ammonium hydroxide (NH4OH), ammonium hydrogen carbonate (NH4HCO3) and the mixed solution of NH4OH+NH4HCO3, respectively. Compared with the other two precipitants, the Nd-doped Lu2O3 powder synthesized by mixed solution of NH4OH+NH4HCO3 had the advantages of higher specific surface area, smaller particle size (30nm) and narrower particle size distribution (from 60nm to 160nm). Green compacts were formed from as-synthesized Nd3+∶Lu2O3 powders by dry-pressing followed by a cold isostatic pressing. The green compact made from powders synthesized by mixed precipitants acheived the highest linear thermal shrinkage of about 17% at 1400℃, demonstrating more superior sinterbility than the other two powders. Highly transparent samples were obtained after being sintered in flowing H2 atmosphere at 1880℃ for 8h. The linear optical transmittance of the polished transparent samples reached 75.5% at the wavelength of 1080nm.

Key words： Nd3+∶Lu2O3; co-precipitation processing; powder characteristics; transparent ceramic

Cite this article

ZHOU Ding , SHI Ying , YUN Ping , XIE Jian-Jun . Effects of Precipitants on the Properties of Nd3+∶Lu2O3 Nano-powders[J]. Journal of Inorganic Materials, 2009 , 24(4) : 764 -768 . DOI: 10.3724/SP.J.1077.2009.00764

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