Reactive sintering of YAG-based materials using micrometer-sized powders

Role of powder properties and shaping techniques on the formation of pore-free YAG materials

“…The latter sample, prepared by cold isostatic pressing under the same experimental condition of sample 4, contains less and smaller residual pores and these relate to the grain size. 9,[13][14][15] On the other hand, sample 4 is a pure Nd:YAG material, whereas in case of the sample shown in Fig. 1 and prepared with nanometric powders, secondary phases formed during sintering.…”

“…Another problem encountered with nanometric powders is related to the difficulty to prepare slurries with the viscosity and stability needed for the slip casting (SC) technique, especially when different oxides are mixed together as in the case of the reactive sintering process. [8][9][10] On the other hand, slip casting is an attractive technique for laser source materials because complicated shapes can be obtained. 11,12 The present study shows the relationship of the shaping technique with the final density and residual porosity when micrometric powders characterized * Corresponding author.…”

Synthesis of Nd:YAG powders leading to transparent ceramics: The effect of MgO dopant

“…2 The Nd:YAG transparent ceramics are considered to be an alternative to single crystal because of its excellent performance, low-cost, ease of manufacture and mass-production and comparatively shorter times of preparation. 3,4 Owing to such application potential of Nd:YAG ceramics, a lot of efforts have been made to try to synthesize transparent polycrystalline Nd:YAG ceramics, such as solid-state reaction, 5,6 sol-gel, 7,8 hydrothermal, 9 and coprecipitation. [10][11][12][13] Among these, co-precipitation is a unique and useful method for obtaining well-dispersed Nd:YAG nanopowders with very good chemical homogeneity and high purity.…”

Diffusion-controlled solid-state reactive sintering of Nd:YAG transparent ceramics

“…For the last twenty years, tremendous efforts have been made to develop the YAG ceramics fabrication methods [13][14][15][16][17]. In comparison with quite sophisticated wet-chemical synthesis of YAG nanopowders [18][19][20], the solid-state reactive sintering is considered to be simple and cost-efficient.…”