Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C09K-008/54
B22F-003/02
B05D-005/00
B22F-001/02
C22C-023/02
C23C-030/00
C25D-003/42
출원번호
US-0194271
(2011-07-29)
등록번호
US-9643250
(2017-05-09)
발명자
/ 주소
Mazyar, Oleg A.
Johnson, Michael
Guest, Randall
Carrejo, Nicholas
Furlan, Wayne
Gaudette, Sean
Xu, Zhiyue
출원인 / 주소
BAKER HUGHES INCORPORATED
대리인 / 주소
Cantor Colburn LLP
인용정보
피인용 횟수 :
2인용 특허 :
358
초록▼
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.
대표청구항▼
1. A composite particle, comprising: 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 reactivi
1. A composite particle, comprising: 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, andoptionally, an adhesion metal layer deposited on the metallic layer,wherein at least one of the shielding layer, the interlayer region, the metallic layer, and the optional adhesion metal layer is discontinuous, andwherein the composite particle is corrodible in the presence of an electrolyte fluid. 2. The composite particle of claim 1, wherein the core comprises magnesium, the shielding layer comprises aluminum and, optionally, oxides of aluminum, magnesium, or a combination comprising at least one of the foregoing, and the interlayer region comprises an intermetallic compound. 3. The composite particle of claim 2, wherein the intermetallic compound is γ-Mg17Al12. 4. The composite particle of claim 1, wherein the metallic layer comprises a group 6-11 transition metal. 5. The composite particle of claim 4, wherein the group 6-11 transition metal comprises Ni, Fe, Cu, Co, W, alloys thereof, or a combination comprising at least one of the foregoing. 6. The composite particle 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. 7. The composite particle of claim 6, wherein the inner core comprises aluminum, and the outer core comprises magnesium. 8. The composite particle of claim 1, wherein the core comprises a magnesium-aluminum alloy. 9. The composite particle of claim 1, 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. 10. The composite particle of claim 1, wherein the interlayer region, shielding layer, metallic layer, and optional adhesion metal layer are inter-dispersed with each other. 11. The composite particle of claim 1, wherein the shielding layer is cathodic relative to the core, and anodic relative to the metallic layer. 12. A composite particle, comprising: a magnesium-aluminum alloy core,a shielding layer comprising an aluminum-containing layer deposited on the core, further comprising an interlayer region comprising γ-Mg17Al12 formed at the interface between the magnesium alloy core and the aluminum-containing layer, and further comprising inclusions of alumina, magnesia, or a combination comprising at least one of these oxides,a metallic layer deposited 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, an aluminum-containing adhesion metal layer deposited on the metallic layer,wherein the interlayer region, shielding layer, metallic layer, and optional adhesion metal layer are inter-dispersed with each other. 13. A method of forming an article, comprising molding the composite particles of claim 1, and forging the molded article. 14. An article comprising the composite particles of claim 1. 15. The article of claim 14, wherein the article comprises a ball, ball seat, or fracture plug. 16. A coating comprising the composite particles of claim 1. 17. The composite particle of claim 1, wherein the core is in partial mutual contact with the shielding layer, the metallic layer, the optional adhesion metal layer, or a combination comprising at least one of the foregoing. 18. The composite particle of claim 1, wherein each of the core, the shielding layer, the interlayer region, the metallic layer, and the optional adhesion metal layer is discontinuous. 19. The composite particle of claim 1, wherein the electrolyte comprises water or brine.
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