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Degradable High-Strength Metal Alloy – Carbon Nanotube Mat Metal Matrix Composite for Disintegrating Articles

IP.com Disclosure Number: IPCOM000247739D
Publication Date: 2016-Oct-03
Document File: 1 page(s) / 8K

Publishing Venue

The IP.com Prior Art Database

Abstract

Mechanical characteristics of disintegrating articles such as frac plugs, ball seats and frac balls can be improved by incorporating ordered layers of carbon nanotube mats (C-Mats) into the metal powder.

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Degradable High-Strength Metal Alloy - Carbon Nanotube Mat Metal Matrix Composite for Disintegrating Articles

Mechanical characteristics of disintegrating articles such as frac plugs, ball seats and frac balls can be improved by incorporating ordered layers of carbon nanotube mats (C-Mats) into the metal powder. Mechanical characteristics of disintegrating articles such as frac plugs, ball seats, and frac balls composed of degradable high-strength metal alloys and composite materials can be improved by incorporating ordered layers of carbon nanotube mats (C-Mats) into the Mg alloy or other metal-based powders before manufacturing the article using cold pressing, cold isostatic pressing, hot isostatic pressing, sintering, vacuum hot pressing, forging, extruding, plasma spraying and other processes known in powder metallurgy. C-Mats composed of double-wall carbon nanotubes with unusually high aspect ratio are manufactured by MER Corporation based in Tucson, AZ. Uniform layers of powder of controlled thickness can be deposited on C-Mats using electrostatic process. Layer-by-layer process of placing the C-Mat and depositing of metal powder on it can be repeated multiple times to produce a metal matrix composite with high and well controlled carbon nanotube loading. Since such layered C-Mat/Metal Alloy structure is expected to have anisotropic mechanical properties, it is best suited for disintegrating frac plugs and ball seats, where the direction of load is well de...