Dependence of the Efficiency Electron Beam Assisted Synthesis of YAG:Ce Ceramics on the Power Density of the Electron Flow

Karipbaeyev, Zhakyp; Полисадова, Е. Ф.; Ermolaev, A. V.; Лисицын, В. М.; Alpyssova, G.; Mussakhanov, Dossymkhan; Kukenova, A.; Abil, Zhalgas

doi:10.1109/efre47760.2020.9242038

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Assessment and Analysis Of Electron Energy Loss Distribution...1

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2023

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“…Earlier studies have provided a ballpark estimation of the temperature at which the ceramic precursor, commonly referred to as the "charge", is heated during its formation [39]. This temperature is directly influenced by the intensity of the electron irradiation applied.…”

Section: Assessment and Analysis Of Electron Energy Loss Distribution...mentioning

confidence: 99%

Study of β-Ga2O3 Ceramics Synthesized under Powerful Electron Beam

Usseinov,

Karipbayev,

Purans

et al. 2023

Materials

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The synthesis of β-Ga2O3 ceramic was achieved using high-energy electron beams for the first time. The irradiation of gallium oxide powder in a copper crucible using a 1.4 MeV electron beam resulted in a monolithic ceramic structure, eliminating powder particles and imperfections. The synthesized β-Ga2O3 ceramic exhibited a close-to-ideal composition of O/Ga in a 3:2 ratio. X-ray diffraction analysis confirmed a monoclinic structure (space group C2/m) that matched the reference diagram before and after annealing. Photoluminescence spectra revealed multiple luminescence peaks at blue (~2.7 eV) and UV (3.3, 3.4, 3.8 eV) wavelengths for the synthesized ceramic and commercial crystals. Raman spectroscopy confirmed the bonding modes in the synthesized ceramic. The electron beam-assisted method offers a rapid and cost-effective approach for β-Ga2O3 ceramic production without requiring additional equipment or complex manipulations. This method holds promise for fabricating refractory ceramics with high melting points, both doped and undoped.

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Section: Assessment and Analysis Of Electron Energy Loss Distribution...mentioning

confidence: 99%