Porous powder materials with lyophilic additions

Vityaz, P. A.; Sheleg, V. K.; Александров, В. М.; Mazyuk, V. V.; Gubareva, N. V.

doi:10.1007/bf00802560

Cited by 4 publications

(2 citation statements)

References 1 publication

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“…The samples permeability is influenced among others by the particles size, shape, the pores size and tortuosity [15]. After sedimentation no additional densification process was applied.…”

Section: Advanced Materials and Structures IVmentioning

confidence: 99%

Studies and Researches on the Obtaining of Sintered Gradual Porous Structures by Irregular Nickel Powders Sedimentation

Moldovan

Vida–Simiti

Jumate

et al. 2012

SSP

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The aim of this work is to obtain sintered porous membranes with graded structure for microfiltration by sedimentation and sintering of metallic powders. Our previous studies have demonstrated the possibility of obtaining sintered porous materials with graded structure by sedimentation. In this paper, irregular nickel particles were used having a grain size in the 2-90 µm range evaluated using scanning electron microscopy and laser scattering particle size analyzer. The powders were sedimented into a sintering die in a sedimentation medium consisting of water and dispersant agent. After drying, the samples were sintered at 1000°C for 10 minutes in vacuum (~1•10-3 Pa). The structures obtained were characterized by scanning electron microscopy and mercury porosimetry. The pore size distribution was between 5-72 µm. The flow rate - pressure drop curves were experimentally determined and the viscous permeability coefficient was calculated using Darcy’s law (Ψv=0.14•10-12 m2). The absolute filtration fineness measured was 20 µm and the relative filtration fineness (95%) obtained for our membranes was 11 µm respectively. The possible applications for the studied membrane are: water microfiltration, environmental technologies, filtering lubricants and cleaning agents

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“…The samples permeability is influenced among others by the particles size, shape, the pores size and tortuosity [15]. After sedimentation no additional densification process was applied.…”

Section: Advanced Materials and Structures IVmentioning

confidence: 99%

Studies and Researches on the Obtaining of Sintered Gradual Porous Structures by Irregular Nickel Powders Sedimentation

Moldovan

Vida–Simiti

Jumate

et al. 2012

SSP

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“…Porous materials based on titanium are widely used in various industries (filters, catalysts, etc.) and medicine (implants) due to their high physical and mechanical properties, among which chief properties are the high corrosion resistance in many corrosive environments, high specific strength and biocompatibility [1][2][3]. There are various methods of producing porous materials based on titanium, among which a method of self-propagating high-temperature synthesis (SHS) is notable [4][5].…”

Section: Introductionmentioning

confidence: 99%

Influence of Granulation of Powder Charge of Titanium-Boron on Regularities of Self-Propogating High-Temperature Synthesis of Porous Materials

Andriyanov

Амосов

Samboruk

2016

KEM

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The results of studies of fabrication of porous titanium boride TiB by self-propagating high-temperature synthesis (SHS) using ordinary (not granular) and granular initial powder charge titanium-boron are presented. The influence of the amount of titanium in the charge, the granule size and the pressure of compaction of the charge on the structure, porosity, phase composition and compression strength of the resulting porous materials is described. The results of studies were obtained with the use of the scanning electron microscope, diffractometer and universal testing machine.

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Effect of the method of production of porous powder metallurgy materials on their capillary properties (review)

Sheleg¹,

Sabich²

1996

Powder Metall Met Ceram

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The unique features of liquid infiltration in capillary-porous powder metallurgy materials (CPPM) Capillary-porous powder metallurgy materials (CPPM), in which capillary forces control the transport of liquids in pore channels, as well as their displacement by a gradient of temperature or pressure, occupy a special place among porous materials. CPPM find wide application as capillary structures in heat tubes which are capable of transporting large heat fluxes under small thermal gradients; hydraulic protective devices --apparatus for the protection of special pneumatic systems from damage by impulsive pressure gradients; aeraters in systems for the bio-and physicochemical purification of feed and waste

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Porous powder materials with lyophilic additions

Cited by 4 publications

References 1 publication

Studies and Researches on the Obtaining of Sintered Gradual Porous Structures by Irregular Nickel Powders Sedimentation

Studies and Researches on the Obtaining of Sintered Gradual Porous Structures by Irregular Nickel Powders Sedimentation

Influence of Granulation of Powder Charge of Titanium-Boron on Regularities of Self-Propogating High-Temperature Synthesis of Porous Materials

Effect of the method of production of porous powder metallurgy materials on their capillary properties (review)

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