Donald M Kroeger, 85Saint Petersburg, FL

6286194, Sep 11, 2001

Nov 26, 1997

8/979243

Donald M. Kroeger - Knoxville TN
Fr Lis - Andersonville TN

Lockheed Martin Energy Systems, Inc. - Oak Ridge TN

B21B 1500

29335

A process and apparatus for manufacturing a superconductor. The process is accomplished by depositing a superconductor precursor powder on a continuous length of a first substrate ribbon, overlaying a continuous length of a second substrate ribbon on said first substrate ribbon, and applying sufficient pressure to form a bound layered superconductor comprising a layer of said superconducting precursor powder between said first substrate ribbon and said second substrates ribbon. The layered superconductor is then heat treated to establish the superconducting phase of said superconductor precursor powder.

6447714, Sep 10, 2002

May 15, 2000

09/571561

Amit Goyal - Knoxville TN
Robert K. Williams - Knoxville TN
Donald M. Kroeger - Knoxville TN

UT-Battelle, LLC - Oak Ridge TN

B22F 318

419 28, 419 29, 419 38, 505490

A method of preparing a biaxially textured alloy article comprises the steps of preparing a mixture comprising Ni powder and at least one powder selected from the group consisting of Cr, W, V, Mo, Cu, Al, Ce, YSZ, Y, Rare Earths, (RE), MgO, CeO , and Y O ; compacting the mixture, followed by heat treating and rapidly recrystallizing to produce a biaxial texture on the article. In some embodiments the alloy article further comprises electromagnetic or electro-optical devices and possesses superconducting properties.

6451450, Sep 17, 2002

May 2, 2000

09/563665

Amit Goyal - Knoxville TN
Donald M. Kroeger - Knoxville TN
Mariappan Paranthaman - Knoxville TN
Dominic F. Lee - Knoxville TN
Roeland Feenstra - Knoxville TN
David P. Norton - Gainesville FL

UT-Battelle, LLC - Oak Ridge TN

B32B 1504

428629, 428469, 428697, 428699, 428702, 428680, 505775, 505779, 505812, 148512, 148525, 148537, 427 62

A laminate article consists of a substrate and a biaxially textured protective layer over the substrate. The substrate can be biaxially textured and also have reduced magnetism over the magnetism of Ni. The substrate can be selected from the group consisting of nickel, copper, iron, aluminum, silver and alloys containing any of the foregoing. The protective layer can be selected from the group consisting of gold, silver, platinum, palladium, and nickel and alloys containing any of the foregoing. The protective layer is also non-oxidizable under conditions employed to deposit a desired, subsequent oxide buffer layer. Layers of YBCO, CeO , YSZ, LaAlO , SrTiO , Y O , RE O , SrRuO , LaNiO and La ZrO can be deposited over the protective layer. A method of forming the laminate article is also disclosed.

6468591, Oct 22, 2002

Sep 24, 1999

09/405871

Mariappan Paranthaman - Knoxville TN
Amit Goyal - Knoxville TN
Donald M. Kroeger - Knoxville TN

UT-Battelle, LLC

B05D 136

427404, 427402, 427405, 4274191, 4274192

Buffer layer architectures are epitaxially deposited on biaxially-textured rolled-Ni and/or Cu substrates for high current conductors, and more particularly buffer layer architectures such as MgO/Ag/Pt/Ni, MgO/Ag/Pd/Ni, MgO/Ag/Ni, MgO/Ag/Pd/Cu, MgO/Ag/Pt/Cu, and MgO/Ag/Cu. Techniques used to deposit these buffer layers include electron beam evaporation, thermal evaporation, rf magnetron sputtering, pulsed laser deposition, metal-organic chemical vapor deposition (MOCVD), combustion CVD, and spray pyrolysis.

6486100, Nov 26, 2002

Dec 13, 2000

09/736035

Dominic F. Lee - Knoxville TN
Donald M. Kroeger - Knoxville TN
Amit Goyal - Knoxville TN

UT-Battelle, LLC - Oak Ridge TN

C30B 2518

505470, 505700, 148 52, 148525, 148537

A multi-domained bulk REBa CU O with low-angle domain boundaries which resemble a quasi-single domained material and a method for producing the same comprising arranging multiple seeds, which can be small single crystals, single domained melt-textured REBa CU O pieces, textured substrates comprises of grains with low misorientation angles, or thick film REBa CU O deposited on such textured substrate, such seeds being tailored for various REBa CU O compounds, in specific pattern and relative seed orientations on a superconductor precursor material which may be placed in contact with a porous substrate so as to reduce the amount of liquid phase in the melt. Because seeds can be arranged in virtually any pattern, high quality REBa CU O elements of virtually unlimited size and complex geometry can be fabricated.

6599346, Jul 29, 2003

Aug 16, 2001

09/931433

Amit Goyal - Knoxville TN
Robert K. Williams - Knoxville TN
Donald M. Kroeger - Knoxville TN

UT-Battelle, LLC - Oak Ridge TN

C22C 104

75246, 148426, 148427, 148429

A biaxially textured alloy article having a magnetism less than pure Ni includes a rolled and annealed compacted and sintered powder-metallurgy preform article, the preform article having been formed from a powder mixture selected from the group of mixtures consisting of: at least 60 at % Ni powder and at least one of Cr powder, W powder, V powder, Mo powder, Cu powder, Al powder, Ce powder, YSZ powder, Y powder, Mg powder, and RE powder; the article having a fine and homogeneous grain structure; and having a dominant cube oriented {100}100 orientation texture; and further having a Curie temperature less than that of pure Ni.

6602313, Aug 5, 2003

Aug 16, 2001

09/931514

Amit Goyal - Knoxville TN
Robert K. Williams - Knoxville TN
Donald M. Kroeger - Knoxville TN

UT Battelle, LLC - Oak Ridge TN

C22C 104

75245

A biaxially textured alloy article having a magnetism less than pure Ni includes a rolled and annealed compacted and sintered powder-metallurgy preform article, the preform article having been formed from a powder mixture selected from the group of ternary mixtures consisting of: Ni powder, Cu powder, and Al powder, Ni powder, Cr powder, and Al powder; Ni powder, W powder and Al powder; Ni powder, V powder, and Al powder; Ni powder, Mo powder, and Al powder; the article having a fine and homogeneous grain structure; and having a dominant cube oriented {100}100 orientation texture; and further having a Curie temperature less than that of pure Ni.

6607838, Aug 19, 2003

Oct 28, 2002

10/281637

Amit Goyal - Knoxville TN, 37923
Robert K. Williams - Knoxville TN, 37922
Donald M. Kroeger - Knoxville TN, 37923

B22F 702

428551, 428552, 428457, 428469

A biaxially textured alloy article having a magnetism less than pure Ni includes a rolled and annealed compacted and sintered powder-metallurgy preform article, the preform article having been formed from a powder mixture selected from the group of mixtures consisting of: at least 60 at % Ni powder and at least one of Cr powder, W powder, V powder, Mo powder, Cu powder, Al powder, Ce powder, YSZ powder, Y powder, Mg powder, and RE powder; the article having a fine and homogeneous grain structure; and having a dominant cube oriented {100}100 orientation texture; and further having a Curie temperature less than that of pure Ni.