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Information × Registration Number 0204U000552, 0101U007512 , R & D reports Title Investigation of hef generation properties of praseodymium in nonlinear boron crystals popup.stage_title Head Oseledchik Yu.S., Registration Date 11-02-2004 Organization Zaporozhye State Engineer Academy popup.description2 The phase diagram of the SrO - B2O3 system in the concentration range 50 - 75 mol % B2O3 was investigated. The new strontium borate Sr4B14O25 was synthesis. The incongruent melting temperature of Sr4B14O25 is (1012±5) 0С, and it may be crystallized from the melt with (64 - 65) mol % B2O3 concentration. The crystal structure was checked by X - ray diffraction. The Sr4B14O25:Pr+3 crystal belongs to the monoclinic system with the space group C2/m. The Pr+3 doped strontium borate crystals SrB4O7 and Sr4B14O25 was grown from melt with molar ratio of RE2O3/SrO from 0 to 0,01. Polycrystalline samples of SrB4O7:Pr3+ were obtained for the molar ratio Pr2O3/SrO < 0.002 of lanthanides dopants. In contrast to solid state reactions, new strontium borate crystals Sr4B14O25: Pr+3 for the molar ratio Pr2O3/SrO > 0.002 lanthanides dopants in the melt were obtained by crystallization of the melt Product Description popup.authors popup.nrat_date 2020-04-02 Close