The Ga20Ge20Se60 glass-ceramics as a promising long-wave IR optical material

M.V. Sukhanov,A.P. Velmuzhov,B.S. Stepanov,R.D. Blagin,L.A. Ketkova,D.G. Fukina,T.V. Kotereva, I.A. Modin,V.S. Shiryaev

Journal of Non-Crystalline Solids（2022）

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Abstract

•Ga20Ge20Se60 glass-ceramics with a crystalline phase volume fraction of 50–55% are prepared.•The phase formation during Ga20Ge20Se60 quenching from different temperatures is studied.•Annealing of glass-ceramics at 480 °C leads to the appearance of mi0xed GaGeSe3 phase.•Fracture toughness, elastic modulus, and abrasive resistance increase with increasing gallium content in GaxGe40-xSe60 (x = 5–20) samples.

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Key words

Ga-Ge-Se glass-ceramics,Crystallization,X-ray diffraction analysis,Crystal phases,Isomorphic substitution,Transparence,Mechanical properties

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