Dip coating of YBCO films on three dimensional substrates
OwnerDavid S. Applegateinventor
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Abstract
A method for providing a superconductive coating on three dimensional substrates by dip coating is disclosed. The dip coating formulation includes terpineol, butoxyethyl acetate, binder, dispersant, YBCO, and alcohol and has a viscosity ranging from 60 cPs to about 125 cPs. After the substrate is dipped in the dip coating formulation, it is dried, baked and then sintered. The formulation is prepared by dissolving the binder and the dispersant in the terpineol and butoxyethyl acetate solvents to create a vehicle. The YBCO is then milled with a vehicle to create a thick ink which is subsequently thinned with ethanol to produce a dip ink formulation having the aforenoted viscosity.
Claims51
A formulation for dip coating a superconducting coating onto a substrate, the formulation comprising:
- from about 6 to about 8 wt % terpineol,
- from about 6 to about 8 wt % butoxyethyl acetate,
- from about 0.4 to about 1.0 wt % of a binder,
- from about 0.5 to about 2 wt % of a dispersant,
- from about 60 to about 70 wt % YBa2Cu3O6+x, and
- from about 18 to about 20 wt % of an alcohol.
A method for applying a superconducting coating onto a substrate by dip coating, the method comprising:
- providing a dip coating formulation comprising
- from about 6 to about 8 wt % terpineol,
- from about 6 to about 8 wt % butoxyethyl acetate,
- from about 0.4 to about 1.0 wt % of a binder,
- from about 0.5 to about 2 wt % of a dispersant,
- from about 60 to about 70 wt % YBa2CU3O6+x, and
- from about 18 to about 20 wt % of an alcohol;
- dipping the substrate in the dip coating formulation;
- removing the substrate from the dip coating formulation;
- drying the substrate;
- baking the substrate;
- sintering the substrate.
A method of preparing a formulation for dip coating a superconducting coating onto a substrate, the method comprising:
- providing at least two solvents comprising terpineol and butoxyethyl acetate;
- dissolving binder and dispersant in the solvents to form a vehicle;
- milling YBa2Cu3O6+x powder and the vehicle to produce an ink;
- thinning the ink with ethanol to a viscosity ranging from about 60 cPs to about 125 cPs to produce the formulation.
Dependencies are inferred from the claim text.