Abstract:
An aluminum alloy material includes 1.0 wt % to 13.0 wt % of Si, 0.2 wt % to 1.4 wt % of Fe, 0.2 wt % to 0.8 wt % of Ni, and the remainder being Al and inevitable impurities. The aluminum alloy material can be 3D printed or die-casted to form an aluminum alloy object with a high thermal conductivity.
Abstract:
An alloy casting material is provided, which includes 97 to 99 parts by weight of Al and Si, 0.25 to 0.4 parts by weight of Cu, and 0.15 to 1.35 parts by weight of a combination of at least two of Mg, Ni, and Ti. The alloy casting material can be sprayed by gas to form powders, which are melted by laser-additive manufacturing to form a melted object. The melted object can be processed by an ageing heat treatment to complete an alloy object.
Abstract:
A method of forming copper oxide nanopowder includes dissolving copper metal bulk in an acidic solution to form a copper-containing solution, wherein the acidic solution is sulfuric acid or nitric acid. The method includes adding an alkaline solution into the copper-containing solution to precipitate a solid. The method includes filtering, collecting, and drying the solid. The method includes calcinating the solid to obtain copper oxide nanopowder. When the acidic solution is sulfuric acid, the copper oxide nanopowder is a combination of long-bar shaped and sheet-shaped. When the acidic solution is nitric acid, the copper oxide nanopowder is short-bar shaped. The copper oxide nanopowder and an aqueous resin can be mixed to form an electrically insulating and thermally conductive film.
Abstract:
An aluminum alloy material includes 1.0 wt % to 13.0 wt % of Si, 0.2 wt % to 1.4 wt % of Fe, 0.2 wt % to 0.8 wt % of Ni, and the remainder being Al and inevitable impurities. The aluminum alloy material can be 3D printed or die-casted to form an aluminum alloy object with a high thermal conductivity.
Abstract:
Disclosed is an low carbon steel alloy composition, including 98.5 to 99.7 parts by weight of Fe, 0.1 to 0.3 parts by weight of C, 0.1 to 0.6 parts by weight of Si, and 0.15-0.45 parts by weight of Cr. The low carbon steel alloy composition can be sprayed by gas to form powders, which are sintered by laser additive manufacturing to form a sintered object.