CAST GLASSCERAMIC MATERIAL Russian patent published in 2020 - IPC C03C10/00 C03C10/02 

FIELD: technological processes.

SUBSTANCE: invention describes a cast glass-crystalline material containing oxides of silicon, magnesium, aluminum, titanium, manganese and having in structure spinel phases, wherein it additionally contains oxides of calcium, iron (II), iron (III), sodium, potassium, chromium, vanadium, sulfur S² in compound Fe₂S, with the following ratio of ingredients, wt%: SiO₂ 43.0–46.0; MgO 12.0–16.0; Al₂O₃ 10.0–17.0; CaO 9.0–15.0; FeO 3.0–7.0; Fe₂O₃ 1.0–1.2; TiO₂ 0.4–0.8; Na₂O 0.3–1.0; K₂O 0.33–1.10; MnO 0.20–0.30; Cr₂O₃ 2.4–3.0; V₂O₅ 0.1–0.2; S^2- 0.02–0.06 (in Fe₂S compound), wherein its structure contains spinel phases in crystalline spherolith components with size of 4–7.5 mcm, consisting of two phases: spherolith nucleus – spinelid with size of 2–3 mcm and spherolith shell– pyroxenide with size of 2–4.5 mcm, and the thickness of the glass-phase interlayer between spherulites is 5–7 mcm.

EFFECT: obtaining cast glass-crystalline material having the ability to absorb impact kinetic energy and high wear resistance without using scarce and / or expensive and / or toxic components.

1 cl, 1 dwg, 2 tbl