Methods to bond silica parts
OwnerRichard J. Phillips, Shailendra B. Rathodinventors
Life of this patent
Estimating the term…
Abstract
A method of bonding a first silica part to a second silica part includes coating contacting surfaces of the first and second silica parts with a solution having one of silica and silica precursors. The coated surfaces of the first silica part are placed adjacent to the coated surfaces of the second silica part to form an assembly, and the assembly is heated.
Claims19
A method of bonding a first silica part to a second silica part, the method comprising:
- providing the first silica part;
- providing the second silica part;
- coating contacting surfaces of the first silica part and second silica part with a solution having at least one of silica and silica precursors;
- placing the coated surfaces of the first silica part adjacent to the coated surfaces of the second silica part to form an assembly;
- and
- heating the assembly.
A crucible for use in directional solidification of multicrystalline ingots, the crucible comprising:
- a base;
- a sidewall extending around the base to form a vessel for the containment of material therein;
- and
- a weir attached to the base at a location inward from the sidewall to define an inner cavity and an outer cavity, the weir having at least one passage therethrough to allow material in the outer cavity to be moved into the inner cavity.
A system for growing a single crystal ingot, the system comprising:
- a crucible having:
- a base;
- a sidewall extending about the base to form a vessel for the containment of material therein;
- and
- a weir affixed to the base at a location inward from the sidewall to define an inner cavity and an outer cavity, the weir has at least one passage therethrough to allow material in the outer cavity to be moved into the inner cavity;
- a heater located adjacent to the crucible for supplying heat to the crucible to maintain the melt material contained therein;
- and
- a feed tube connected with the crucible for supplying a feedstock material to the crucible.
A method for growing a single crystal ingot from a crucible having a base and a sidewall and a weir affixed to the base at a location inward from the sidewall to define an inner cavity and an outer cavity, the weir having at least one passage therethrough to allow material in the outer cavity to be moved into the inner cavity, the method comprising:
- placing a feedstock material into the crucible;
- melting the feedstock material to form a melt that passes through the passage from the outer cavity to the inner cavity;
- lowering a seed crystal into the melt;
- and
- pulling the seed crystal from the melt to pull an ingot from the seed crystal.
Dependencies are inferred from the claim text.