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Scintillator conversion as optoelectronic functional devices are widely used in high-energy physics, nuclear medicine, and geological exploration detector device. The scintillator material is a scintillation crystal, due to the the monocrystalline material Preparation of the equipment requirements, the preparation period is long, the cost is high. Compared with flashing ceramics have a low-cost, processing performance, easy-to-cut performance characteristics has become a hot research field in the material. SrHfO 3 : Ce transparent flashing ceramic performance can meet the CT with the requirements of the scintillator material, and in the uniformity of the light-emitting ion doping aspect superior flashing monocrystalline. Preparation the excellent SrHfO 3 : Ce flashing ceramics to be solved key technology is a synthetic performance flashing powder material and to determine the various parameters of the ceramic sintering process. This paper focuses on the SrHfO 3 : Ce flash ceramic powder preparation process and performance, and explore blink ceramic sintering system. Sol - gel prepared SrHfO 3 : Ce flashing powder by means of XRD, TG-DTA, FTIR, SEM, PL test sample preparation phase change, crystallization process, grain size, powder and ceramic morphology, experimental conditions set and sample luminescence properties were analyzed. (1) citric acid as the complexing agent, the sol - gel the prepared SrHfO 3 : Ce nanopowder analyzes of various process parameters on the performance of powder. The research shows that: the experimental process parameters pH = 5, the initial concentration of 0.10mol / L, the gelling temperature of 80 ° C, the drying temperature of 130 ° C, the calcination temperature of 1000 ° C insulation 2h, a particle size of approximately 30-100nm, evenly dispersed high crystallinity and luminescent properties of good spherical powders. Powders at the wavelength of 385 nm under the excitation spectrum is located at 200-340nm, and the emergence of three excitation peak were 218,242 and 308nm. The emission spectrum of the excitation wavelength of 218 nm there are three broad bands, a peak 380,487 and 526nm. Respectively, corresponding to the electronic transition in the Ce3 the 5d split level with 4f energy level emission absorption and backfill. When the the doped Ce molar fraction is less than 1.5%, the emission intensity is enhanced with increasing Ce content exceeding 1.5% occurs after the concentration quenching, resulting in an emission peak intensity decreases. (2) the use of dry-pressed the the molding method repression green vacuum two-stage sintering ceramic samples prepared. Explore the influence of process parameters in the molding and sintering process of ceramic sintering. The results show that: green layered premise, an appropriate increase in the green density helps sintering densification, when the sample green density of 52%, the relative density of 94.2%; gradually increased with the sintering temperature, the the sample densification increasingly high, 94.2% to 1680 ℃; sintering additive Y2O3 incorporation of less than 8% guaranteed system single-phase is not destroyed, the incorporation of 6%, can effectively reduce the sintering temperature of 40 ℃, to obtain the crystal grain size uniform, approximately 1μm, the relative density of 97.5% of the samples. Ceramic samples due to the high degree of crystallinity, its luminescent characteristics compared powder has changed greatly, the excitation and emission spectra are only a broadband spectrum, and a peak, but still corresponding to Ce 3 The light emitting characteristics of .
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