PMID- 38541411 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240330 IS - 1996-1944 (Print) IS - 1996-1944 (Electronic) IS - 1996-1944 (Linking) VI - 17 IP - 6 DP - 2024 Mar 8 TI - Preparation of Ce-Doped Gd(3)(Al, Ga)(5)O(12) Nanopowders via Microwave-Assisted Homogenization Precipitation for Transparent Ceramic Scintillators. LID - 10.3390/ma17061258 [doi] LID - 1258 AB - Ce-doped gadolinium gallium aluminum oxide (Ce: GGAG) precursors were first prepared by the microwave-assisted homogeneous precipitation method (MAHP). Thermal gravity-differential thermal analysis (TG-DTA), X-ray diffraction (XRD), specific surface area analysis (BET) and field emission scanning electron microscopy (FE-SEM) were employed to investigate the crystal structure, phase evolution and morphologies of the Ce: GGAG precursors and powders. The influence of Ga ion concentration in the salt solution on the properties of Ce: GGAG powders was investigated. All the precursors were transformed into single-phase GGAG after being calcined at 950 degrees C in a furnace for 3 h. Monodispersed Ce: GGAG powders were obtained as the Ga ion concentration was lower than 0.06 mol/L. Single-phase and dense Ce: GGAG ceramics were obtained after sintering at 1600 degrees C in a flowing oxygen atmosphere for 10 h. Specifically, the Ce: GGAG ceramic reached its maximum density of ~6.68 g/cm(3), which was close to its theoretical density of 6.70 g/cm(3), and exhibited the highest optical transmittance of 65.2% at 800 nm after hot isostatic pressing sintering (HIP) as the Ga ion concentration was 0.02 mol/L. The decay time and light yield of the GGAG ceramic were 35 ns and 35,000 +/- 1250 ph/MeV, respectively, suggesting that Ce: GGAG ceramics prepared using MAHP-synthesized nanopowders are promising for scintillation applications. FAU - Liu, Min AU - Liu M AD - School of Materials Science & Engineering, Shanghai Institute of Technology, Shanghai 201418, China. FAU - Zhang, Yansen AU - Zhang Y AUID- ORCID: 0009-0006-0152-1598 AD - School of Materials Science & Engineering, Shanghai Institute of Technology, Shanghai 201418, China. AD - Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China. FAU - Hu, Song AU - Hu S AUID- ORCID: 0000-0002-6750-6992 AD - Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China. FAU - Zhou, Guohong AU - Zhou G AD - Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China. FAU - Qin, Xianpeng AU - Qin X AUID- ORCID: 0000-0002-7318-1100 AD - Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China. FAU - Wang, Shiwei AU - Wang S AD - Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China. LA - eng PT - Journal Article DEP - 20240308 PL - Switzerland TA - Materials (Basel) JT - Materials (Basel, Switzerland) JID - 101555929 PMC - PMC10971854 OTO - NOTNLM OT - Ce: GGAG OT - microwave-assisted homogenization precipitation OT - scintillation OT - transparent ceramic COIS- The authors declare no conflicts of interest. EDAT- 2024/03/28 06:44 MHDA- 2024/03/28 06:45 PMCR- 2024/03/08 CRDT- 2024/03/28 01:13 PHST- 2023/11/23 00:00 [received] PHST- 2024/02/28 00:00 [revised] PHST- 2024/03/05 00:00 [accepted] PHST- 2024/03/28 06:45 [medline] PHST- 2024/03/28 06:44 [pubmed] PHST- 2024/03/28 01:13 [entrez] PHST- 2024/03/08 00:00 [pmc-release] AID - ma17061258 [pii] AID - materials-17-01258 [pii] AID - 10.3390/ma17061258 [doi] PST - epublish SO - Materials (Basel). 2024 Mar 8;17(6):1258. doi: 10.3390/ma17061258.