Production of bodies of refractory borides

Details Production of bodies of refractory borides Production of bodies of refractory borides

1995-08-28

1998-05-19

Valentine, Donald R.

Plastic and nonmetallic article shaping or treating: processes

Removal of liquid component or carrier through porous mold...

264 87, B28B 126

Patent

active

057531633

ABSTRACT:
A method of producing a self-sustaining body of refractory boride from the group consisting of the borides of titanium, chromium, vanadium, zirconium, hafnium, niobium, tantalum, molybdenum and cerium. This body includes a refractory boride and a dried colloid from the group consisting of colloidal alumina, silica, yttria, ceria, thoria, magnesia, lithia, monoaluminium phosphate and cerium acetate and is obtained from a slurry of the refractory boride in one or more of said colloids by casting the slurry on a porous plaster layer, and drying the cast slurry by draining through the plaster, or by pressing/drying. Subsequently, the dried body is subjected to heat treatment to bond the refractory boride in the dried colloid. The bodies are useful as components of aluminium electrowinning cells.

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