Semi Solid TiB2 Precursor Mixture
AssigneeAlcan International Limited
InventorsMartin Dionne, Jean-Paul Huni
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Abstract
The invention relates to a metal boride precursor mixture comprising a metal oxide and a boric oxide combined in such a manner so as to produce intimately linked clusters wherein the boric oxide is found within the metal oxide. Furthermore, the invention discloses a carbon composite material made with the metal boride precursor mixture and a carbonaceous component. Finally, the invention also teaches the process for preparing the metal boride precursor mixture comprising steps of providing a metal oxide and a boron oxide, mechanically mixing the metal oxide and the boron oxide at a temperature that liquefies the boron oxide and may impregnate the metal oxide to produce an intimately linked cluster of metal oxide and boric oxide.
Claims19
A metal boride precursor mixture comprising:
- a metal oxide, and
- boric oxide (B2O3),
- wherein the metal oxide and the boric oxide are physically linked in clusters and the boric oxide is intimately supported by the metal oxide.
A carbon composite material for use in an aluminium electrolysis cell as at least one of a cathode and a cell wall material, the composite material comprising:
- a carbonaceous component, and
- a metal boride precursor mixture comprising
- a metal oxide, and
- boric oxide,
- wherein the metal oxide and the boric oxide are physically linked in clusters and the boric oxide is intimately supported by the metal oxide.
A process for producing a metal boride precursor mixture comprising steps of:
- providing a metal oxide wherein the metal oxide has a particle surface
- providing a boron component;
- mechanically mixing the metal oxide and the boron component to produce a particulate mix, and
- heating the particulate mix to a temperature where the boron component becomes a liquefied boric oxide and impregnates the particle surface to produce a physically linked cluster of metal oxide and boric oxide, and the boric oxide is intimately supported by the metal oxide.
Dependencies are inferred from the claim text.