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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0063605 (2016-03-08) |
등록번호 | US-10092953 (2018-10-09) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 0 인용 특허 : 491 |
A composite particle comprises a core, a shielding layer deposited on the core, and further comprising an interlayer region formed at an interface of the shielding layer and the core, the interlayer region having a reactivity less than that of the core, and the shielding layer having a reactivity le
A composite particle comprises a core, a shielding layer deposited on the core, and further comprising an interlayer region formed at an interface of the shielding layer and the core, the interlayer region having a reactivity less than that of the core, and the shielding layer having a reactivity less than that of the interlayer region, a metallic layer not identical to the shielding layer and deposited on the shielding layer, the metallic layer having a reactivity less than that of the core, and optionally, an adhesion metal layer deposited on the metallic layer.
1. A method of forming a composite, the method comprising: depositinga first aluminum-containing layer, ona magnesium alloy core comprising magnesium alloyed with one or more of the following: Al; Cd; Ca; Co; Cu; Fe; Mn; Ni; Si; Ag; Sr; Th; Zn; Zr; or W,to form a shielding layer, the shielding layer
1. A method of forming a composite, the method comprising: depositinga first aluminum-containing layer, ona magnesium alloy core comprising magnesium alloyed with one or more of the following: Al; Cd; Ca; Co; Cu; Fe; Mn; Ni; Si; Ag; Sr; Th; Zn; Zr; or W,to form a shielding layer, the shielding layer further comprising an interlayer formed at the interface between the magnesium alloy core and the first aluminum-containing layer;depositing a metallic layer on the shielding layer; the metallic layer comprising Ni, Fe, Cu, Co, W, alloys thereof, or a combination comprising at least one of the foregoing; andoptionally, depositing an adhesion metal layer on the metallic layer to form a composite particle; the adhesion metal layer comprising aluminum;wherein the core and shielding layer, shielding layer and metallic layer, and metallic layer and optional adhesion metal layer, are each in mutual partial contact such that components of the core, the shielding layer, and the metallic layer are present at an exposed surface of the composite particle. 2. The method of claim 1, wherein the interlayer region, shielding layer, metallic layer, and optional adhesion metal layer are inter-dispersed with each other. 3. The method of claim 1, wherein the shielding layer comprises aluminum, and inclusions of alumina, magnesia, or a combination comprising at least one of the foregoing oxides; and the interlayer region comprises an intermetallic compound. 4. The method of claim 3, wherein the intermetallic compound is γ-Mg17Al12. 5. The method of claim 1, wherein the core comprises an inner core of a first core material and an outer core of a second core material, the inner core material having a lower activity than that of the outer core. 6. The method of claim 5, wherein the inner core comprises aluminum, and the outer core comprises magnesium. 7. The method of claim 1, wherein the core comprises a magnesium-aluminum alloy. 8. The method of claim 1, wherein the shielding layer is cathodic relative to the core and anodic relative to the metallic layer. 9. A method of forming a composite, the method comprising: depositinga first aluminum-containing layer comprising aluminum and inclusions of alumina, magnesia, or a combination comprising at least one of these oxides, ona magnesium-aluminum alloy core,to form a shielding layer, the shielding layer further comprising an interlayer comprising γ-Mg17Al12 formed at the interface between the magnesium alloy core and the first aluminum-containing layer; anddepositing a metallic layer on the shielding layer; the metallic layer comprising Ni, Fe, Cu, Co, W, alloys thereof, or a combination comprising at least one of the foregoing; andoptionally, depositing an adhesion metal layer on the metallic layer to form a composite particle;wherein the core and shielding layer, shielding layer and metallic layer, and metallic layer and optional adhesion metal layer, are each in mutual partial contact such that components of the core, the shielding layer, and the metallic layer are present at an exposed surface of the composite particle. 10. The method of claim 9, wherein the interlayer region, shielding layer, metallic layer, and optional adhesion metal layer are inter-dispersed with each other. 11. The method of claim 9, further comprising molding a plurality of the composite particles. 12. The method of claim 11, further comprising forging the molded composite particles to form an article. 13. The method of claim 12, wherein the article is a ball, ball seat, or fracture plug. 14. The method of claim 9, further comprising dispersing a plurality of the composite particles in a matrix to form a composition. 15. The method of claim 14, wherein the matrix is non-metallic. 16. The method of claim 14, further comprising applying the composition to a surface to form a coating. 17. The method of claim 16, further comprising performing a controlled electrolytic process on the coating in the presence of water and an electrolyte. 18. The method of claim 9, wherein the metallic layer and the shielding layer independently have a thickness of about 0.05 to about 0.15 μm. 19. The method of claim 9, wherein the composite particle comprises the adhesion metal layer deposited on the metallic layer, and wherein the adhesion metal layer comprises aluminum.
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