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Sm^(3+)/Ce^(3+)共掺杂B_(2)O_(3)-Al_(2)O_(3)-SiO_(2)玻璃的结构和激光吸收性能
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作者 吕雪娟 苏玉长 +1 位作者 王丽容 卢庆叶 《粉末冶金材料科学与工程》 2023年第2期151-159,共9页
在硼铝硅酸盐玻璃(43B_(2)O_(3)-25Al_(2)O_(3)-32SiO_(2))中进行Sm^(3+)/Ce^(3+)共掺杂,采用固相熔融法制备(B_(2)O_(3)-Al_(2)O_(3)-SiO_(2))-20Sm_(2)O_(3)-x CeO_(2)(x为0~6%,摩尔分数)玻璃,借助X射线衍射、扫描电镜、X射线光电子... 在硼铝硅酸盐玻璃(43B_(2)O_(3)-25Al_(2)O_(3)-32SiO_(2))中进行Sm^(3+)/Ce^(3+)共掺杂,采用固相熔融法制备(B_(2)O_(3)-Al_(2)O_(3)-SiO_(2))-20Sm_(2)O_(3)-x CeO_(2)(x为0~6%,摩尔分数)玻璃,借助X射线衍射、扫描电镜、X射线光电子能谱、紫外-可见-近红外分光光度计等表征方法研究玻璃的结构和激光吸收性能。结果表明,所有样品均为玻璃状,Sm^(3+)和Ce^(3+)均匀分布。随CeO_(2)的摩尔分数从0增加到2%,玻璃中桥氧的摩尔分数从60.12%增加到63.82%,而当CeO_(2)的摩尔分数增加到6%时,桥氧的摩尔分数下降到59.41%。CeO_(2)摩尔分数为2%时玻璃的激光吸收性能最好,漫反射吸收峰位为1076 nm,漫反射率为48.10%。Sm^(3+)/Ce^(3+)共掺杂的硼铝硅酸盐玻璃是一种很有前景的1.06μm波长激光的吸收材料。 展开更多
关键词 Sm^(3+)/Ce^(3+)共掺杂 B_(2)O_(3)-Al_(2)O_(3)-SiO_(2) 玻璃材料 1.06μm激光 激光吸收性能
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Performance Improvements in Temperature Reconstructions of 2-D Tunable Diode Laser Absorption Spectroscopy(TDLAS) 被引量:9
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作者 Doo-Won Choi Min-Gyu Jeon +3 位作者 Gyeong-Rae Cho Takahiro Kamimoto Yoshihiro Deguchi Deog-Hee Doh 《Journal of Thermal Science》 SCIE EI CAS CSCD 2016年第1期84-89,共6页
Performance improvement was attained in data reconstructions of 2-dimensional tunable diode laser absorption spectroscopy(TDLAS). Multiplicative Algebraic Reconstruction Technique(MART) algorithm was adopted for data ... Performance improvement was attained in data reconstructions of 2-dimensional tunable diode laser absorption spectroscopy(TDLAS). Multiplicative Algebraic Reconstruction Technique(MART) algorithm was adopted for data reconstruction. The data obtained in an experiment for the measurement of temperature and concentration fields of gas flows were used. The measurement theory is based upon the Beer-Lambert law, and the measurement system consists of a tunable laser, collimators, detectors, and an analyzer. Methane was used as a fuel for combustion with air in the Bunsen-type burner. The data used for the reconstruction are from the optical signals of 8-laser beams passed on a cross-section of the methane flame. The performances of MART algorithm in data reconstruction were validated and compared with those obtained by Algebraic Reconstruction Technique(ART) algorithm. 展开更多
关键词 Data Reconstruction TDLAS MART ART
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