3-D carbon-carbon composites for crystal pulling furnace hardwar

Details 3-D carbon-carbon composites for crystal pulling furnace hardwar 3-D carbon-carbon composites for crystal pulling furnace hardwar

1994-07-22

1997-04-01

Breneman, R. Bruce

Single-crystal, oriented-crystal, and epitaxy growth processes;

Processes of growth from liquid or supercritical state

Having pulling during growth

117200, C30B 3500

Patent

active

056161751

ABSTRACT:
A piece of crystal pulling furnace hardware, especially one selected from among crucible holder tops, crucible holder bottoms, heaters, heat shields, and pedestals, is provided as a three-dimensional carbon-carbon composite. The enhanced physical properties of such a material provide advantages in the diameter of the crystal being pulled, the use of larger charges of crystallizable material in the furnace, and an increased life for the hardware.

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