US2020340080A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020340080-A1 |
| Application number | US-201916395804-A |
| Country | US |
| Kind code | A1 |
| Filing date | Apr 26, 2019 |
| Priority date | Apr 26, 2019 |
| Publication date | Oct 29, 2020 |
| Grant date | — |
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A metal matrix composite (MMC) material composition of nickel alloy and carbon nanotubes is provided. The material composition includes powdered granules of the nickel alloy; and a plurality of the nanotubes. The granules and nanotubes are milled in a hopper and sintered by laser to form the MMC. A method for producing the MMC material composition is also provided. The method includes inserting powdered granules of the nickel alloy and the nanotubes into a hopper; rotating the hopper at 450 rpm for 120 min to mill the granules and the nanotubes into a mixture; and sintering said mixture by a laser at 195 W and 1100 mm/s scan speed.
Opening claim text (preview).
What is claimed is: 1 . A metal matrix composite (MMC) material composition of nickel alloy and carbon nanotubes, said material composition comprising: powdered granules of the nickel alloy; and a plurality of the nanotubes, wherein said granules and the nanotubes are milled in a hopper and sintered by a laser to form the MMC. 2 . The material composition according to claim Herein the nickel alloy is Inconel 625. 3 . The material composition according to claim 1 , wherein the nanotubes are multi-wall carbon nanotubes (MWCNT). 4 . The material composition according to claim 1 , wherein the MMC is 99.5 wt % of Inconel 625 for the nickel alloy and 0.5 wt % of the nanotubes. 5 . A manufacturing method for producing a metal matrix composite (MMC) material composition of nickel alloy and carbon nanotubes, said method comprising: inserting powdered granules of the nickel alloy into a hopper; inserting the nanotubes into said hopper; rotating said hopper at 450 rpm for 120 min to mill said granules and the nanotubes into a mixture; and sintering said mixture by a laser at 195 W and 1100 mm/s scan speed. 6 . The manufacturing method according to claim 5 , further including filtering said granules by an 80 μm sieve prior to insertion into said hopper; 7 . The manufacturing method according to claim 5 , wherein said sintering operation is conducted within an argon (Ar) atmosphere.
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