Complex-Shaped Porous Cu Bodies Fabricated by  Freeze-Casting and Vacuum Sintering

Ran, Huashen; Feng, Peizhong; Liu, Zhangsheng; Wang, Xiaohong; Niu, Jinghui; Zhang, Haifei

doi:10.3390/met5041821

Cited by 14 publications

(6 citation statements)

References 9 publications

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“…. Box plot summarizing sintering shrinkage data measured as change in diameter, height or volume for metals (red, N=63;[55,141,181,434,462,497,565]), ceramics (blue, N=644;[6,110,148,156,185,228,239,240,262,286,295,296,316,341,383,384,390,408,414, 415, 566, 573, 574, 586, 590, 608, 619, 622, 623, 637, 638, 647, 652, 655, 656, 660, 665, 666, 674, 683, 688, 690, 691, 700, 712, 714, 720, 731, 737, 738, 745-751]), and polymers (green, N=23; [352, 519, 535, 547, 752]). The mean for each condition is shown as a black diamond, the median as a black bar; outliers are shown as +, and error bars are derived using standard deviation; boxes extend from lower to upper quartile values.…”

mentioning

confidence: 99%

Freeze casting – A review of processing, microstructure and properties via the open data repository, FreezeCasting.net

Scotti

Dunand

2018

Progress in Materials Science

300

200

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mentioning

confidence: 99%

Freeze casting – A review of processing, microstructure and properties via the open data repository, FreezeCasting.net

Scotti

Dunand

2018

Progress in Materials Science

300

200

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“…Titanium-based porous materials are novel materials used for structural and functional applications [1][2][3][4]. Due to their combination of the excellent properties of titanium alloys and metallic foams, titanium-based porous materials are widely used in many fields [5]. However, because of the high processing costs and difficulties informing them, the development and application of titanium-based porous materials are limited.…”

Section: Introductionmentioning

confidence: 99%

Influencing Factors for the Microstructure and Mechanical Properties of Micro Porous Titanium Manufactured by Metal Injection Molding

Zhou

Huang

Jiang

et al. 2016

Metals

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Porous titanium is a new structural and functional material. It is widely used in many fields since it integrates the properties of biomaterials with those of metallic foam. A new technology that combines both the preparation and forming of porous materials has been proposed in this paper. Moreover, a new solder was developed that could be employed in the joining of porous materials. Influencing factors for microstructure and mechanical properties of the parent material and joint interface are identified. Metal injection molding (MIM) technology was used for fabricating porous materials. The feedstock for injection molding of porous titanium powders was prepared from titanium powders and a polymer-based binder system. In addition, the proportion of powder loading and binders was optimized. Through MIM technology, a porous titanium filter cartridge was prepared. For the purpose of investigating the thermal debinding technology of the filter cartridge, effects of the sintering temperature on the porosity, morphology of micropores and mechanical properties were analyzed. It could be found that when the sintering temperature increased, the relative density, bending and compression strength of the components also increased. Moreover, the porosity reached 32.28% when the sintering temperature was 1000˝C. The microstructure morphology indicated that micropores connected with each other. Meanwhile, the strength of the components was relatively high, i.e., the bending and compression strength was 65 and 60 MPa, respectively. By investigating the joining technology of porous filter cartridges, the ideal components of the solder and pressure were determined. Further research revealed that the micropore structure of the joint interface is the same as that of the parent material, and that the bending strength of the joint interface is 40 MPa.

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“…Sublimation of the frozen solvent produces a porous structure. Initially, sublimation freezing was used to make highly porous ceramics, but recently this method has also been applied to metal suspensions such as titanium [ 7 , 8 ], Ti-Al alloy [ 9 ], iron [ 10 , 11 , 12 ], copper [ 13 , 14 , 15 , 16 ], nickel foams [ 17 , 18 , 19 ] and Cu-Ni [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

Manufacturing of Open-Cell Aluminium Foams: Comparing the Sponge Replication Technique and Its Combination with the Freezing Method

2022

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The manufacturing of aluminium foams with a total porosity of 87% using the sponge replication method and a combination of the sponge replication and freezing technique is presented. Foams with different cell counts were prepared from polyurethane (PU) templates with a pore count per inch (ppi) of 10, 20 and 30; consolidation of the foams was performed in an argon atmosphere at 650 °C. The additional freezing steps resulted in lamellar pores in the foam struts. The formation of lamellar pores increased the specific surface area by a factor of 1.9 compared to foams prepared by the sponge replication method without freezing steps. The formation of additional lamellar pores improved the mechanical properties but reduced the thermal conductivity of the foams. Varying the pore cell sizes of the PU template showed that—compared to foams with dense struts—the highest increase (~7 times) in the specific surface area was observed in foams made from 10 ppi PU templates. The effect of the cell size on the mechanical and thermal properties of aluminium foams was also investigated.

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Complex-Shaped Porous Cu Bodies Fabricated by Freeze-Casting and Vacuum Sintering

Cited by 14 publications

References 9 publications

Freeze casting – A review of processing, microstructure and properties via the open data repository, FreezeCasting.net

Freeze casting – A review of processing, microstructure and properties via the open data repository, FreezeCasting.net

Influencing Factors for the Microstructure and Mechanical Properties of Micro Porous Titanium Manufactured by Metal Injection Molding

Manufacturing of Open-Cell Aluminium Foams: Comparing the Sponge Replication Technique and Its Combination with the Freezing Method

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