Method for securing ceramic structures and forming electrical connections on the same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-019/08
B05D-001/12
출원번호
US-0697922
(2003-10-30)
등록번호
US-7335341
(2008-02-26)
발명자
/ 주소
Van Steenkiste,Thomas Hubert
Mantese,Joseph V.
Li,Bob Xiaobin
Wethey,Pertrice Auguste
Johnston,Robert Paul
Nelson,David Emil
출원인 / 주소
Delphi Technologies, Inc.
대리인 / 주소
Fekete,Douglas D.
인용정보
피인용 횟수 :
21인용 특허 :
80
초록▼
A new kinetic spray process is disclosed that enables one to secure a plurality of ceramic elements together quickly without the need for glues or other adhesives. The process finds special utilization in the formation of non-thermal plasma reactors wherein the kinetic spray process can be used to s
A new kinetic spray process is disclosed that enables one to secure a plurality of ceramic elements together quickly without the need for glues or other adhesives. The process finds special utilization in the formation of non-thermal plasma reactors wherein the kinetic spray process can be used to simultaneously secure the ceramic elements together and to form electrical connections between like electrodes in the non-thermal plasma reactor.
대표청구항▼
The invention claimed is: 1. A method of securing a plurality of ceramic elements to each other comprising the steps of a) providing particles of a material to be sprayed; b) providing a supersonic nozzle; c) providing a plurality of ceramic elements releasably held together and positioned opposite
The invention claimed is: 1. A method of securing a plurality of ceramic elements to each other comprising the steps of a) providing particles of a material to be sprayed; b) providing a supersonic nozzle; c) providing a plurality of ceramic elements releasably held together and positioned opposite the nozzle; d) directing a flow of a gas through the nozzle, the gas having a temperature of from 600 to 1200 degrees Fahrenheit; and e) entraining the particles in the flow of the gas and accelerating the particles to a velocity sufficient to result in adherence of the particles to the ceramic elements upon impact, thereby forming at least a first band of adhered material on the ceramic elements and securing the ceramic elements together. 2. The method of claim 1, wherein step a) comprises providing particles having an average nominal diameter of from 60 to 106 microns. 3. The method of claim 1, wherein step b) comprises providing a nozzle having a throat with a diameter of from 1.5 to 3.0 millimeters. 4. The method of claim 1, wherein step a) comprises providing particles comprising an electrically conductive material. 5. The method of claim 4, wherein step a) comprises providing copper, a copper alloy, nickel, a nickel alloy, aluminum, an aluminum alloy, a stainless steel, and mixtures of these materials as the electrically conductive material. 6. The method of claim 1, wherein step e) comprises forming the first band having a thickness of from 1 millimeter to 2.5 centimeters. 7. The method of claim 1, wherein step e) comprises forming a plurality of bands. 8. The method of claim 1, wherein step e) further comprises directing the particles at the ceramic elements at an angle of from 0 to 45 degrees relative to a line drawn normal to the ceramic elements. 9. The method of claim 1, wherein step e) further comprises directing the particles at the ceramic elements at an angle of from 15 to 25 degrees relative to a line drawn normal to the ceramic elements. 10. The method of claim 1, wherein step e) further comprises moving one of the plurality ceramic elements or the nozzle past the other at a speed of from 0.5 to 13 centimeters per second. 11. The method of claim 1, wherein step e) further comprises moving one of the plurality ceramic elements or the nozzle past the other at a speed of from 0.5 to 6.5 centimeters per second. 12. The method of claim 1, wherein step c) comprises positioning the plurality of ceramic elements opposite the nozzle at a distance of from 10 to 40 millimeters. 13. The method of claim 1, wherein step c) comprises positioning the plurality of ceramic elements opposite the nozzle at a distance of from 10 to 20 millimeters. 14. The method of claim 1, further comprising after step e) the step of applying an outer layer over the band, the outer layer comprising one of tantalum or a ceramic. 15. The method of claim 1, wherein step e) further comprises embedding one of an electrically conductive wire or electrically conductive ribbon in the first band. 16. A method of forming a non-thermal plasma reactor comprising the steps of a) providing particles of an electrically conductive material to be sprayed; b) providing a supersonic nozzle; c) providing a first plurality of ceramic elements and a second plurality of ceramic elements, the ceramic elements releasably held together and positioned opposite the nozzle, with the first plurality of ceramic elements each having a ground electrode with a connector and the second plurality of ceramic elements each having a charge electrode with a connector; d) directing a flow of a gas through the nozzle, the gas having a temperature of from 600 to 1200 degrees Fahrenheit; and e) entraining the particles in the flow of the gas and accelerating the particles to a velocity sufficient to result in adherence of the particles to the ceramic elements upon impact, directing the accelerated particles at the connectors of the first plurality of ceramic elements forming a first band of adhered material electrically coupling the electrodes of the first plurality of ceramic elements together and directing the accelerated particles at the connectors of the second plurality of ceramic elements forming a second band of adhered material electrically coupling the electrodes of the second plurality of ceramic elements together, and the first and the second bands securing the ceramic elements together. 17. The method of claim 16, wherein step a) comprises providing particles having an average nominal diameter of from 60 to 106 microns. 18. The method of claim 16, wherein step b) comprises providing a nozzle having a throat with a diameter of from 1.5 to 3.0 millimeters. 19. The method of claim 16, wherein step a) comprises providing copper, a copper alloy, nickel, a nickel alloy, aluminum, an aluminum alloy, a stainless steel, and mixtures of these materials as the electrically conductive material. 20. The method of claim 16, wherein step e) comprises forming the first and the second bands to have a thickness of from 1 millimeter to 2.5 centimeters. 21. The method of claim 16, wherein step e) further comprises directing the particles at the ceramic elements and connectors at an angle of from 0 to 45 degrees relative to a line drawn normal to the ceramic elements. 22. The method of claim 16, wherein step e) further comprises directing the particles at the ceramic elements at an angle of from 15 to 25 degrees relative to a line drawn normal to the ceramic elements. 23. The method of claim 16, wherein step e) further comprises moving one of the plurality ceramic elements or the nozzle past the other at a speed of from 0.5 to 13 centimeters per second. 24. The method of claim 16, wherein step e) further comprises moving one of the plurality ceramic elements or the nozzle past the other at a speed of from 0.5 to 6.5 centimeters per second. 25. The method of claim 16, wherein step c) comprises positioning the plurality of ceramic elements opposite the nozzle at a distance of from 10 to 40 millimeters. 26. The method of claim 16, wherein step c) comprises positioning the plurality of ceramic elements opposite the nozzle at a distance of from 10 to 20 millimeters. 27. The method claim 16, further comprising after step e) the step of applying an outer layer over each of the bands, the outer layers comprising one of tantalum or ceramic. 28. The method of claim 16, further comprising in step e) the step of embedding one of an electrically conductive wire or an electrically conductive ribbon in said first and second bands.
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