Sgl Carbon Composites

Hitco Technologies Inc.

Robert Howard Metter

Doug Wilson

Raj Mathur

Gary Pruett

Joseph David Hathcock

Peter M Winsek

A chemical process apparatus component comprising a high purity, corrosion resistant composite including a continuous carbon fiber reinforced carbon matrix having a level of total metal impurity below about 10 ppm, preferably below about 5 ppm. Most preferably, the composite has a level of metal impurity below the detection limit of inductively coupled plasma spectroscopy for the metals Ag, Al, Ba, Be, Ca, Cd, Co, Cr, Cu, K, Mg, Mn, Mo, Na, Ni, P, Pb, Sr and Zn.

Corrosion resistant composites useful in chemical reactors

A chemical process apparatus component comprising a high purity, corrosion resistant composite including a continuous carbon fiber reinforced carbon matrix having a level of total metal impurity below about 10 ppm, preferably below about 5 ppm. Most preferably, the composite has a level of metal impurity below the detection limit of inductively coupled plasma spectroscopy for the metals Ag, Al, Ba, Be, Ca, Cd, Co, Cr, Cu, K, Mg, Mn, Mo, Na, Ni, P, Pb, Sr and Zn. A process utilizing at least one of the above components for use in a chemical process apparatus, wherein said component is in contact with at least one of i) a high purity material, such as for processing, and ii) a corrosive process media.

Chemical process employing corrosion resistant composites

A Czochralski process furnace component comprises a high purity, semiconductor standard composite including a carbon fiber reinforced carbon matrix having a total level of metal impurity below about 10 ppm, preferably below about 5 ppm, and most preferably having a level of metal impurity below the detection limit of inductively coupled plasma spectroscopy for the metals Ag, Al, Ba, Be, Ca, Cd, Co, Cr, Cu, K, Mg, Mn, Mo, Na, Ni, P, Pb, Sr and Zn. A crucible susceptor for a crystal growing process for pulling a crystal ingot from a crystal material melt in a crucible comprises a high purity composite comprising a two dimensional, continuously woven carbon fiber fabric reinforced carbon matrix; the high purity composite having a total level of metal impurity less than about 10 parts per million; the crucible susceptor being a one piece, ply lay-up structure of said high purity composite, having a side ring and a base, said side ring and said base having substantially the same thickness.

High purity carbon/carbon composite useful as a crucible susceptor

A Czochralski process furnace component is disclosed. The component comprises a high purity, semiconductor standard composite including a carbon fiber reinforced carbon matrix having a level of metal impurity below the detection limit of inductively coupled plasma spectroscopy. A process for producing the components includes heat treatment of the carbon fiber and the components.

High purity composite useful as furnace components

A Czochralski process furnace component comprises a high purity, semiconductor standard composite including a carbon fiber reinforced carbon matrix having a level of metal impurity below the detection limit of inductively coupled plasma spectroscopy. A process for producing the components includes heat treatment of the carbon fiber and the components.

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Orange, CA, United States of America

Robert Howard Metter