C22C 32/0005

Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides whether added as such or formed in situ {with at least one oxides and at least one of carbides, nitrides, borides or silicides as the main non-metallic constituents}