[1] A IKESUE, T KINOSHITA, K KAMATA et al. Fabrication and optical properties of high performance polycrystalline Nd:YAG ceramics for solid-state lasers. Journal of the American Ceramic Society, 78, 1033-1040(1995).

[2] L MESSING G, J STEVENSON A. Toward pore-free ceramics. Science, 322, 383-384(2008).

[3] A IKESUE, L AUNG Y, T TAIRA et al. Progress in ceramic lasers. Annual Review of Materials Research, 36, 397-429(2006).

[4] J WANG Z, H ZHOU G, Y JIANG D et al. Recent development of A₂B₂O₇ system transparent ceramics. Journal of Advanced Ceramics, 7, 289-306(2018).

[5] B WEI J, G TOCI, A PIRRI et al. Fabrication and property of Yb:CaF₂ laser ceramics from co-precipitated nanopowders. Journal of Inorganic Materials, 34, 1341-1348(2019).

[6] A KRELL, K WAETZIG, J KLIMKE. Influence of the structure of MgO·. nAl2O3 spinel lattices on transparent ceramics processing and properties. Journal of the European Ceramic Society, 32, 2887-2898(2012).

[7] P FEDOROV P, V OSIKO V, V KUZNETSOV S et al. Fluoride laser nanoceramics. Journal of Physics: Conference Series, 345, 1-21(2012).

[8] V LUPEI, A LUPEI, A IKESUE. Transparent polycrystalline ceramic laser materials. Optical Materials, 30, 1781-1786(2008).

[9] F TANG, Y CAO, W GUO et al. Fabrication and laser behavior of the Yb:YAG ceramic microchips. Optical Materials, 33, 1278-1282(2011).

[10] L ESPOSITO, L COSTA A, V MEDRI. Reactive sintering of YAG- based materials using micrometer-sized powders. Journal of the European Ceramic Society, 28, 1065-1071(2008).

[11] A MAITRE, C SALLE, R BOULESTEIX et al. Effect of silica on the reactive sintering of polycrystalline Nd:YAG ceramics. Journal of the American Ceramic Society, 91, 406-413(2008).

[12] J STEVENSON A, R KUPP E, L MESSING G. Low temperature, transient liquid phase sintering of B₂O₃-SiO₂-doped Nd:YAG transparent ceramics. Journal of Materials Research, 26, 1151-1158(2011).

[13] H LEE S, S KOCHAWATTANA, L MESSING G et al. Solid-state reactive sintering of transparent polycrystalline Nd:YAG ceramics. Journal of the American Ceramic Society, 89, 1945-1950(2006).

[14] J LI, J LIU, L LIU B et al. Influence of heat treatment of powder mixture on the microstructure and optical transmission of Nd:YAG transparent ceramics. Journal of the European Ceramic Society, 34, 2497-2507(2014).

[15] X LI X, J WANG W, G HU Z. Preparation of uniformly dispersed YAG ultrafine powders by coprecipitation method with SDS treatment. Powder Metallurgy and Metal Ceramics, 48, 413-418(2009).

[16] X LI, H LIU, Y WANG J et al. Preparation and properties of YAG nano-sized powder from different precipitating agent. Optical Materials, 25, 407-412(2004).

[17] Q WANG Q, Y SHI, G FENG Y et al. Li J. Spectral characteristics and laser parameters of solar pumped Cr,Nd:YAG transparent ceramics. Chinese Journal of Luminescence, 40, 1365-1372(2019).

[18] J STEVENSON A, X LI, A MARTINEZ M et al. Effect of SiO₂ on densification and microstructure development in Nd:YAG transparent ceramics. Journal of the American Ceramic Society, 94, 1380-1387(2011).

[19] H KWON O, L MESSING G. A theoretical analysis of solution- precipitation controlled densification during liquid phase sintering. Acta Metallurgica et Materialia, 39, 2059-2068(1991).

[20] A IKESUE, K KAMATA. Microstructure and optical properties of hot isostatically pressed Nd:YAC ceramics. Journal of the American Ceramic Society, 79, 1927-1933(1996).

[21] N JIANG, C OUYNAG, Y LIU et al. Effect of air annealing on the optical properties and laser performance of Yb:YAG transparent ceramics. Optical Materials, 95, 109203(2019).

[22] A IKESUE, K YOSHIDA, T YAMAMOTO et al. Optical scattering centers in polycrystalline Nd:YAG laser. Journal of the American Ceramic Society, 80, 1517-1522(1997).

[23] R KUPP E, S KOCHAWATTANA, H LEE S et al. Particle size effects on yttrium aluminum garnet (YAG) phase formation by solid-state reaction. Journal of Materials Research, 29, 2303-2311(2014).

[24] L YANG, C LU T, H XU et al. Synthesis of YAG powder by the modified Sol-Gel combustion method. Journal of Alloys and Compounds, 484, 449-451(2009).

[25] G SONG J, L PANG C, L CHEN et al. Preparation and properties of porous ceramics using YAG powder by hydrothermal precipitation method. Journal of Synthetic Crystals, 47, 343-347(2018).

[26] D ZHANG X, H LIU, W HE et al. Novel synthesis of YAG by solvothermal method. Journal of Crystal Growth, 275, E1913-E1917(2005).

[27] J LI, B PAN Y, G QIU F et al. Synthesis of nanosized Nd:YAG powders via gel combustion. Ceramics International, 33, 1047-1052(2007).

[28] Y MA B, W ZHANG, Z SHEN B. Preparation and characterization of highly transparent Nd:YAG/YAG composite ceramics. Optical Materials, 79, 63-71(2018).

[29] H SANG Y, H LIU, D SUN X et al. Formation and calcination temperature-dependent sintering activity of YAG precursor synthesized via reverse titration method. Journal of Alloys and Compounds, 509, 2407-2413(2011).

[30] N SUN L, S ZHAO M, J TAN et al. Preparation of co-doped Ce,Pr: GAGG powder by chemical co-precipitation method and luminescence properties. Chinese Journal of Luminescence, 40, 137-142(2019).

[31] W JING, F LI, Q YU S et al. High efficiency synthesis of Nd:YAG powder by a spray co-precipitation method for transparent ceramics. Journal of the European Ceramic Society, 38, 2454-2461(2018).

[32] Q LIU, C Chen, W DAI J et al. Effect of ammonium carbonate to metal ions molar ratio on synthesis and sintering of Nd:YAG nanopowders. Optical Materials, 80, 127-137(2018).

[33] G LI J, T IKEGAMI, H LEE J et al. Co-precipitation synthesis and sintering of yttrium aluminum garnet (YAG) powders: the effect of precipitant. Journal of the European Ceramic Society, 20, 2395-2405(2000).

[34] Y LI X, Q LIU, W HU Z et al. Influence of ammonium hydrogen carbonate to metal ions molar ratio on co-precipitated nanopowders for TGG transparent ceramics. Journal of Inorganic Materials, 34, 791-796(2019).

[35] H TONG S, C LU T, W GUO. Synthesis of YAG powder by alcohol-water co-precipitation method. Materials Letters, 61, 4287-4289(2007).

[36] H TONG S, C LU T, W GUO et al. Sinterability of Nd:YAG powder prepared by alcohol-water co-precipitation method. Key Engineering Materials, 368-372, 423-425(2008).

[37] T CHEN X, Q WU Y, N WEI et al. Fabrication, photoluminescence and terahertz absorption properties of Yb:YAG transparent ceramics with various Yb dopant concentrations. Optical Materials, 85, 106-112(2018).

[38] T CHEN X, C LU T, N WEI et al. Fabrication and microstructure development of Yb:YAG transparent ceramics from co-precipitated powders without additives. Journal of the American Ceramic Society, 102, 7154-7167(2019).

[39] M RAHMANI, O MIRZAEE, M TAJALLY et al. Comparison of synthesis and spark plasma sintering of YAG nano particles by variation of pH and precipitator agent. Ceramics International, 44, 23215-23225(2018).

[40] G SINGH, S RESHMA S, R SELVAMANI et al. Investigations on vacuum sintered ytterbium-doped YAG ceramic: a laser-host material. Bulletin of Materials Science, 42, 273(2019).

[41] T CHEN X, Q WU Y, N WEI et al. The roles of cation additives on the color center and optical properties of Yb:YAG transparent ceramic. Journal of The European Ceramic Society, 38, 1957-1965(2018).