Preparation and Characterization of Yb – doped YAG Ceramics (Contributo in atti di convegno)

Type

• Contributo in atti di convegno (Classe)
• Prodotto della ricerca (Classe)

Label

• Preparation and Characterization of Yb – doped YAG Ceramics (Contributo in atti di convegno) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

Alternative label

• J. Hostaša, L. Esposito, D. Alderighi, and A. Pirri (2011)
  Preparation and Characterization of Yb – doped YAG Ceramics
  in 7th Laser Ceramics Symposium, LCS 2011, Singapore, 14-17/11/2011
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• J. Hostaša, L. Esposito, D. Alderighi, and A. Pirri (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• CNR ISTEC CNR IFAC (literal)

Titolo

• Preparation and Characterization of Yb – doped YAG Ceramics (literal)

Abstract

• Rare-earth doped yttrium aluminum garnet (YAG) ceramics are among the most widely produced transparent ceramics for laser applications. Yb:YAG ceramics are an interesting IR laser material [1], which allows significantly higher doping compared to the generally more used Nd:YAG [2, 3]. This work presents the preparation of polycrystalline Yb:YAG ceramics with dopant concentration from 0 up to 20 at.% via solid state reactive sintering. Samples were prepared via cold isostatic pressing of spray dried mixture of pure oxide powders with TEOS as a sintering aid. Sintering was conducted under high vacuum and clean atmosphere. Samples with optical transmittance higher than 80 % were prepared (see Fig. 1) and their laser performance was examined. The effect of Yb on both the optical properties (transmittance) and mechanical properties (tensile modulus and hardness) was studied. The crucial factor affecting the optical properties of transparent ceramics is the potential presence of other phases or pores [4]. Final microstructure of prepared samples was thus analyzed via optical and scanning electron microscopy and EDS. In addition, high-temperature behavior was studied, so that the important and critical preparation steps, which affect the final microstructure, and thus the optical as well as laser properties, could be selected and optimized. (literal)

Prodotto di

• Dispositivi e materiali laser innovativi e metodi spettroscopici avanzati (MD.P03.002.001) (Modulo)
• Materiali ceramici trasparenti per applicazioni ottiche ed elettromagnetiche (SP.P01.033.003) (Modulo)
• Institute of science and technology for ceramics (ISTEC) (Istituto)
• Institute of applied physics \"Nello Carrara\" (IFAC) (Istituto)

Autore CNR

• DANIELE ALDERIGHI (Persona)
• LAURA ESPOSITO (Unità di personale interno)
• JAN HOSTASA (Unità di personale esterno)
• ANGELA PIRRI (Unità di personale interno)

Incoming links:

Prodotto

• Institute of science and technology for ceramics (ISTEC) (Istituto)
• Institute of applied physics \"Nello Carrara\" (IFAC) (Istituto)
• Materiali ceramici trasparenti per applicazioni ottiche ed elettromagnetiche (SP.P01.033.003) (Modulo)
• Dispositivi e materiali laser innovativi e metodi spettroscopici avanzati (MD.P03.002.001) (Modulo)

Autore CNR di

• LAURA ESPOSITO (Unità di personale interno)
• JAN HOSTASA (Unità di personale esterno)
• DANIELE ALDERIGHI (Persona)
• ANGELA PIRRI (Unità di personale interno)