Fabrication of highly-transparent Er:CaF2 ceramics by hot-pressing technique

• Autorzy: Zhou W. B. , Cai F F , Zhi G L , Mei B C

Identyfikatory

DOI

10.2478/s13536-013-0196-3

• Języki publikacji: EN

Abstrakty

EN

Highly-transparent trivalent erbium ion doped calcium fluoride (5 mol % Er:CaF2) ceramics were fabricated by a hotpressing (HP) method using high-purity Er:CaF2 nanoparticles, which were synthesized by co-precipitation method. The mean grain size of the nanoparticles was about 24.7 nm. The nanoparticles were sintered at 600 respectively, for 30 min under a uniaxial pressure of 30 MPa and vacuum of 10-3 Pa with 1 mol % lithium fluoride (LiF) as sintering additive. The 5 mol % Er:CaF2 ceramics sintered at 800 C exhibits high density and pore-free microstructure with an average grain size of about 8 μm. The optical transmittance of the transparent ceramics is close to 85 % at visible and nearinfrared wavelengths. The strong and broad absorptions peaks corresponding to characteristic absorption of trivalent erbium ions make the ceramics a potential candidate for infrared and upconversion laser operating.

Słowa kluczowe

EN

calcium fluoride; transparent ceramics; nanoparticles; transmittance

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2014
• Tom: Vol. 32, No. 3
• Strony: 358--363
• Opis fizyczny: Bibliogr. 15 poz., rys., wykr.

Twórcy

autor

Zhou W. B.

• School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, P.R. China

autor

Cai F F

• State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P.R. China

autor

Zhi G L

• State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P.R. China

autor

Mei B C

• State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P.R. China

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