Elkem As

Elkem Asa

Gunnar Schussler

Karl Forwald

Oyvind Sorli

Kai Johansen

Gunnar Halvorsen

Georg Frommeyer

Oyvind Mikkelsen

Leif L'Estrade

The present invention relates to high strength, oxidation and wear resistant titanium-silicon base alloy containing:

High strength, oxidation and wear resistant titanium-silicon based alloy

The invention relates to a rapidly solidified silicon-based alloy, containing 2-40% by weight Al, 2-45% by weight Ti, 0-10% by weight of one or more of the elements V, Cr, Fe, Mn, Ni, Co, 0-1% by weight of one or more of the elements B, Sr and P, the rest, except for impurities, being silicon in an amount of at least 35% by weight. The invention further relates to a method for producing such alloys where a molten alloy is provided and is solidified at a rate of solidification of at least 10.sup.3 .degree. C./second. Consolidated products are produced from the silicon-based alloy by forming articles from powdered alloy and consolidating the formed articles.

Silicon alloy, method for producing the alloy and method for production

The invention relates to a method for continuous production of silicon powder comprising the combination of the following steps:

Silicon powder and method for production of silicon powder

The present invention relates to a silicon powder, which is characterized in that it is produced by gas atomizing of molten silicon and having a particle size between 0,1 and 1000 .mu.m, a specific surface area between 0.001 and 1 m.sup.2 /g, and the following chemical composition in percent by weight: 0.1-1% iron, 0.01-1% aluminium, 0-8% copper, 0-1% calcium, 0-1% zinc, 0-1% tin, 0-5% boron, 0-0.5% phosphorus, 0-0.5% sodium, 0-0.5% lithium, 0-0.5% potassium, 0-0.5% magnesium, 0-0.5% strontium, 0-0.5% barium, 0-0.5% beryllium, the rest being silicon and less than 0.3% impurities such as Ti, V, Cr, Mo, W and Zr.

Silicon powder and a method for producing silicon powder by gas

The present application relates to a method for production of trichloromonosilane in a fluidized bed reactor by reaction of silicon powder and HCl at a temperature between 280.degree. and 300.degree. C. wherein silicon powder which has been produced by gas atomization of molten silicon is used. The gas atomized silicon powder has a preferred particle size between 1 and 1000 .mu.m.

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Drammen, Norway

Gunnar Schussler