Phases transition, component variation and valence of Tb element during terbium gallium garnet polycrystalline synthesization

doi:10.1016/j.jssc.2022.123503

	Phases transition, component variation and valence of Tb element during terbium gallium garnet polycrystalline synthesization
	Zhang, Haotian 1,2,4; Chen, Yingying 1,2,4; Gao, Yuxi 1,2,4; He, Yi 1,2,4; Sun, Guihua 2,4; Dou, Renqin 2,4; Liu, Wenpeng 2,4; Ding, Shoujun 2,3,4; Zhang, Qingli 1,2,4
刊名	JOURNAL OF SOLID STATE CHEMISTRY
	2022-11-01
卷号	315
关键词	TGG Solid state reaction Phase transition XPS
ISSN号	0022-4596
DOI	10.1016/j.jssc.2022.123503
通讯作者	Zhang, Qingli(zql@aiofm.ac.cn)
英文摘要	Terbium gallium garnet (Tb3GaxO12, TGG) is an excellent magneto-optical material and widely used in magneto -optical isolators of laser systems, it is an important topic to grow large-size and high-quality single crystal. It was found that the TGG polycrystalline reacting completely was very important for good-quality single crystal growth. However, the phases transitions, Ga component volatilization and the valence of Tb element during synthesizing TGG polycrystalline with Tb4O7 and Ga2O3 were not been reported previously. In this work, the commercial Ga2O3 powder and Tb4O7 were selected as starting raw materials, and the samples with various initial chemical stoichiometric ratios were calcined at the different temperatures. The phases transition was semi-quantitatively investigated with X-ray diffraction (XRD) and Rietveld refinement. Some of the Ga2O3 from the starting mate-rial and Tb2O3 formed at high temperature gradually disappeared at no more than 1100 degrees C. The tri-terbium gallate dioxide (TGD) was found as a metastable phase, which disappeared at no more than 1200 degrees C. The chemical stoichiometric ratios change and Ga element loss were investigated with X-ray fluorescence (XRF) analysis and found that loss rate of Ga element is close to 23% after calcined at 1200 degrees C or higher temperatures for 48 h. The X-ray photoelectron spectroscopy (XPS) analysis shows that there is no or little Tb4+ ion existed in samples after being calcined at or above 900 degrees C. In summary, the appropriate initial molar ratio range for synthesizing pure TGG polycrystalline is Tb: Ga = 3 : 4.75-5.15, and the best calcination temperature is 1200 degrees C.
资助项目	Open Research Fund of Advanced Laser Technology Laboratory of Anhui Province[51802307] ; National Natural Science Foundation of China[202203a05020002] ; Anhui Major Provincial Science & Technology Project ; [AHL 20220 ZR04]
WOS关键词	FILM-FED GROWTH ; MAGNETOOPTICAL PROPERTIES ; CRYSTALS ; TGG ; CERAMICS
WOS研究方向	Chemistry
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000863764000015
资助机构	Open Research Fund of Advanced Laser Technology Laboratory of Anhui Province ; National Natural Science Foundation of China ; Anhui Major Provincial Science & Technology Project
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/129333]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, Qingli
作者单位	1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Adv Laser Technol Lab Anhui Prov, Hefei 230037, Peoples R China 3.Anhui Univ Technol, Maanshan 243032, Peoples R China 4.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Crystal Lab Laser Technol Res Ctr, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Haotian,Chen, Yingying,Gao, Yuxi,et al. Phases transition, component variation and valence of Tb element during terbium gallium garnet polycrystalline synthesization[J]. JOURNAL OF SOLID STATE CHEMISTRY,2022,315.
APA	Zhang, Haotian.,Chen, Yingying.,Gao, Yuxi.,He, Yi.,Sun, Guihua.,...&Zhang, Qingli.(2022).Phases transition, component variation and valence of Tb element during terbium gallium garnet polycrystalline synthesization.JOURNAL OF SOLID STATE CHEMISTRY,315.
MLA	Zhang, Haotian,et al."Phases transition, component variation and valence of Tb element during terbium gallium garnet polycrystalline synthesization".JOURNAL OF SOLID STATE CHEMISTRY 315(2022).