Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle

US9833838B2 · kind B2 · utility

Assignee

• Baker Hughes, a GE company, LLC · US

Inventors

• Oleg A. Mazyar · Katy, US
• Michael H. Johnson · Katy, US
• Randall V. Guest · Spring, US
• Nicholas Carrejo · Katy, US
• Wayne Furlan · Austin, US
• Sean L. Gaudette · Katy, US
• Zhiyue Xu · Cypress, US

Key dates

• Filing date: Oct 21, 2014
• Grant date: Dec 5, 2017
• Expiry date: Oct 21, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/12181
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A composite particle comprises a core, a shielding layer deposited on the core, and further comprises 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, wherein the composite particles have a corrosion rate of about 0.1 to about 450 mg/cm2/hour using an aqueous 3 wt % KCl solution at 200° F. An article comprises composite particles, wherein has a corrosion rates of about 0.1 to about 450 mg/cm2/hour using an aqueous 3 wt % KCl solution at 200° F.