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FABRICATION OF OPEN-POROUS TITANIUM FOAM USING SPACE-HOLDER PROCESS FOR USE IN LOAD-BEARING APPLICATIONS
FABRICATION OF OPEN-POROUS TITANIUM FOAM USING SPACE-HOLDER PROCESS FOR USE IN LOAD-BEARING APPLICATIONS
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机译:使用空间保持器工艺制造开放式钛泡沫,用于承载承载应用
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摘要
A sodium-chloride-space-holder process with two-step heat treatment is used to create an open-porous metal foam (e.g., titanium foam) with a high porosity of about 70 to 90 percent for use in load-bearing applications. A mechanically reliable titanium foam is manufactured using a space-holder method containing two-step heat treatment where a sodium chloride powder is first sieved for desired pore size range, mixed with titanium powder, and compacted under pressure at high temperature. An additional heat treatment is applied to further strengthen the chemical bonding between the titanium particles after the removal of sodium chloride in water to create pores. This process uses a pneumatic pressing machine in combination with a furnace under an argon gas to simultaneously apply both the pressure and temperature. The resulting titanium foam is chemically well bonded and has enhanced durability for proper used in structural applications.
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