Fracture toughness and hardness at micro- and nanoindentation of phosphate glasses depending on their composition

POPA, M.; SHIKIMAKA, O.; GRABCO, D.; SAVA, B. A.; BOROICA, L.; ELISA, M.; PYRTSAC, C.; BARBOS, Z.; BELEI, I.

Fracture toughness and hardness at micro- and nanoindentation of phosphate glasses depending on their composition

POPA, M.; SHIKIMAKA, O.; GRABCO, D.; SAVA, B. A.; BOROICA, L.; ELISA, M.; PYRTSAC, C.; BARBOS, Z.; BELEI, I.

URI: http://repository.utm.md/handle/5014/17873

Date: 2016

Abstract:

Two groups of glasses of a basic aluminophosphate (Al2O3–P2O5–Li2O–BaO–La2O3) composition (APG) doped with Dy2O3, Tb2O3 and Fe2O3, and borophosphate (B2O3–P2O5–Li2O–Al2O3–ZnO) composition (BPG) codoped with Dy2O3–Tb2O3, Bi2O3–PbO and CoO were investigated for hardness (H), Young’s modulus (E) and fracture toughness (KIC) and the comparative analysis was carried out. The dynamic nanoindentation and quasistatic microindentation technique within the load range of 0.02–2.0 N were used in this study.

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