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by experimental data of bulk nanocrystalline Ni prepared by hydrogen direct current arc plasma evaporation method and hot compression. The effect of the evolution of porosity on stress-strain relations... dependent; porosity 1 Introduction Ultrafine grained materials with average grain size in the range from 1 nm to 100 nm are referred to as nanocrystalline(NC) materials which have attracted intensive......
Effect of Open Porosity of Y2O3 Ceramic on the Apparent Contact Angles and Interactions Between Ti47Al Alloys and Y2O3 CeramicChao Ran1,2,Hua-rui Zhang1,2,Hu Zhang1,2,Bei-bei Wan1,2,Peng Bai1,21...="ChDivSummary">The effect of open porosity of Y2O3 ceramic on the apparent contact angle and interaction between molten Ti47 Al alloy and Y2O3 ceramic substrates under pure Ar was investigated by using......
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Role of Double Oxide Film Defects in the Formation of Gas Porosity in Commercial Purity and Sr-containing Al AlloysBatool Farhoodi,Ramin Raiszadeh,Mohammad-Hasan GhanaatianDepartment of Metallurgy... in the formation of gas porosity in commercial purity and Srcontaining Al alloys was investigated by means of a reduced pressure test(RPT) technique.The liquid metal was poured from a height into a crucible......
Strength,porosity,and chloride resistance of mortar using the combination of two kinds of pozzolanic materialsSumrerng Rukzon1,Prinya Chindaprasirt21. Department of Civil Engineering,Faculty...:This article presents a study on the resistance to chloride penetration,corrosion,porosity,and strength of mortar containing fine fly ash(FA),ground rice husk......
Porosity and Pore Size Distribution Measurement of Cement/Carbon Nanofiber Composites by ~1H Low Field Nuclear Magnetic Resonance王宝民,ZHANG Yuan,MA HainanLaboratory of Building Materials, School..., porosity, pore size distribution and microstructure of CNFs reinforced cement-based composites were investigated in this paper. To achieve effective dispersion of CNFs, a method utilizing ultrasonic......
the porosity of 65% (volume fraction), bending strength of 24.3 MPa, pore size of about 100 μm, cell wall thickness of about 50 μm and porosity of 1131 pore/cm2. It was suggested that the pore size and the porosity could be adjusted using the pore-forming agent and moisture content of the slurry respectively. Key words: micro-honeycomb ceramics; cloth fabric; strength; porosity 1 Introduction The ceramic......
Vital role of hydroxyapatite particle shape in regulating the porosity and mechanical properties of the sintered scaffoldsJinchuan Wu1,2,Changshun Ruan3,Yufei Ma1,2,3,Yuanliang Wang1,2,Yanfeng...="ChDivSummary">The effect of particle shape on the porosity and compressive strength of porous hydroxyapatite(HA)scaffolds was investigated by sintering the mixture of rod-shaped HA(r-HA) and spherical HA(s......
Effects of Fly Ash/Diatomite Admixture with Variable Particle Sizes on the Mechanical Properties and Porosity of Concrete刘军1,2,WU Kewei2,WANG Yufei2,YANG Yuanquan31. School of Materials Science.... Effects of particle size distributions of the admixtures on the mechanical properties and porosity of concrete were studied. The relationship between the size distribution of the admixture and the concrete......
porosity, maximum pore size and gas permeability decrease gradually. When the specimens are sintered at 1 700 ℃, the open porosity, gas permeability and maximum pore size of the specimens are 30.9%, 0.7 mm/(Pa?s) and 5 μm, respectively. Key words: TiB2-TiC multiphase ceramics; reactive sintering; porosity ......
