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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0967420 (2015-12-14) |
등록번호 | US-10016810 (2018-07-10) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 1 인용 특허 : 505 |
A method of manufacturing a degradable article comprises: forming a mixture comprising composite particles dispersed in a metallic matrix material; the composite particles comprising a carrier and a disintegration agent coated on the carrier or embedded in the carrier, or a combination thereof and h
A method of manufacturing a degradable article comprises: forming a mixture comprising composite particles dispersed in a metallic matrix material; the composite particles comprising a carrier and a disintegration agent coated on the carrier or embedded in the carrier, or a combination thereof and having a density that is about 0.2 to about 2.5 equivalents to that of the metallic matrix material when measured under the same testing conditions; and molding or casting the mixture to form a degradable article. The disintegration agent forms a plurality of galvanic cells with the metallic matrix material, or the carrier, or a combination thereof, in the degradable article.
1. A method of manufacturing a degradable article, the method comprising: forming a mixture comprising composite particles dispersed in a metallic matrix material; the composite particles comprising a carrier and a disintegration agent coated on the carrier or embedded in the carrier, or a combinati
1. A method of manufacturing a degradable article, the method comprising: forming a mixture comprising composite particles dispersed in a metallic matrix material; the composite particles comprising a carrier and a disintegration agent coated on the carrier or embedded in the carrier, or a combination thereof and the composite particles having a density that is about 0.2 to about 2.5 equivalents to that of the metallic matrix material when measured under the same testing conditions;releasing the disintegrating agent from the composite particles; andmolding or casting the mixture to form a degradable article;wherein the disintegration agent forms a plurality of galvanic cells with the metallic matrix material, with the carrier, or with a combination of the metallic matrix material and the carrier, in the degradable article. 2. The method of claim 1 wherein the composite particles have a density that is about 0.5 to about 1.5 equivalents to that of the metallic matrix material when measured under the same testing conditions. 3. The method of claim 1, further comprising forming the composite particles by one or more of the following: physical vapor deposition; chemical vapor deposition; milling; or mechanical mixing. 4. The method of claim 1, wherein forming a mixture comprising composite particles dispersed in a metallic matrix material comprises: mixing the metallic matrix material in a solid form with the composite particles to provide a blend; andheating the blend to a temperature to selectively melt the metallic matrix material. 5. The method of claim 4, wherein the carrier is at least partially melted at the temperature. 6. The method of claim 1, wherein forming a mixture comprising composite particles dispersed in a metallic matrix material comprises: heating the metallic matrix material in a solid form to provide a molten metallic matrix material; andintroducing the composite particles to the molten matrix material. 7. The method of claim 6, wherein heating the metallic matrix material is to a temperature of about 450° C. to about 850° C. 8. The method of claim 1, wherein molding the mixture comprises pressure molding or vacuum molding. 9. The method of claim 1, wherein molding the mixture comprises applying a superatmospheric pressure of about 500 psi to about 30,000 psi to the mixture. 10. The method of claim 1, further comprising extruding the molded article. 11. The method of claim 1, wherein the carrier comprises one or more of the following: a magnesium-based alloy; an aluminum-based alloy; or a zinc-based alloy. 12. The method of claim 1, wherein the carrier comprises particles have an average particle size of about 1 micron to about 10 millimeters. 13. The method of claim 1, wherein the disintegration agent comprises one or more of the following: a metal; an oxide of the metal; a nitride of the metal; or a cermet of the metal; wherein the metal is one or more of the following: W; Co; Cu; Ni; or Fe. 14. The method of claim 1, wherein the disintegration agent comprises particles having an average particle size of about 200 nanometers to about 10 microns. 15. The method of claim 1, wherein the metallic matrix material comprises one or more of the following: a magnesium-based alloy; an aluminum-based alloy; or a zinc-based alloy. 16. The method of claim 1, wherein the mixture comprises about 0.001 wt. % to about 10 wt. % of the disintegration agent, based on the total weight of the mixture. 17. A degradable article produced by the method of claim 1. 18. A degradable article comprising: a metallic matrix comprising a plurality of grains formed from a metallic matrix material, a carrier, or a combination thereof; anda disintegration agent disposed on grain boundaries of the grains formed from the metallic matrix material, the carrier, or a combination thereof; the disintegration agent comprising particles having an aspect ratio greater than about 2;wherein the metallic matrix and the disintegration agent form a plurality of galvanic cells in the article; andthe disintegration agent comprises one or more of the following: a metal; an oxide of the metal; a nitride of the metal; or a cermet of the metal; wherein the metal is one or more of the following: W; Co; Cu; Ni; or Fe. 19. The degradable article of claim 18, wherein the disintegration agent comprises particles having an aspect ratio greater than about 5. 20. The degradable article of claim 18, wherein the disintegration agent is further disposed inside the grains formed from the metallic matrix material. 21. The method of claim 1, wherein releasing the disintegration agent comprises partially or completely melting the carrier. 22. The method of claim 1, wherein the composite particles comprise the carrier and the disintegration agent coated on the carrier. 23. The method of claim 1, wherein the composite particles comprise the carrier and the disintegration agent embedded in the carrier. 24. The method of claim 1, further comprising selectively melting the matrix material and the carrier but not the disintegration agent.
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