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首页> 外文期刊>Journal of Sol-Gel Science and Technology >Synthesis and Characterization of the beta-BaB_2O_4 Phase Obtained by the Polymeric Precursor Method
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Synthesis and Characterization of the beta-BaB_2O_4 Phase Obtained by the Polymeric Precursor Method

机译：聚合前体法获得的β-BaB_2O_4相的合成与表征

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摘要

A modified polymeric precursor method based on the Pechini process was used to synthesize beta-BaB_2O_4 (beta-BBO) crystalline phase.D-sorbitol (C_6H_(14)O_6) was used as a polymerizing agent to avoid the loss of boron during the samples' calcination and crystallization.The beta-BBO stoichiometric crystalline phase was only obtained when sorbitol was added to the solution.The results of Raman spectroscopy show that the amorphous phase is only completely eliminated when the samples are heat-treated at 750 deg C for 20 h.Thin films of beta-BBO phase displaying a preferred orientation were obtained when crystallized at 750 deg C for 2 h and deposited on sapphire substrate.
机译：采用基于Pechini工艺的改良聚合物前驱体方法合成β-BaB_2O_4（β-BBO）晶相，D-山梨醇（C_6H_（14）O_6）作为聚合剂可避免样品中硼的损失煅烧和结晶。只有在将山梨糖醇加入溶液后才能获得β-BBO化学计量的结晶相。拉曼光谱法的结果表明，只有在750℃下热处理20个样品后，非晶相才被完全消除。 h。在750℃结晶2小时并沉积在蓝宝石衬底上时，获得了显示出较好取向的β-BBO相薄膜。

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