Effect of particle size and weight fraction on the flexural strength and failure mode of TiO2 particles reinforced epoxy

Abstract The purpose of this study was to characterize and investigate the performance of local marble quarry waste to assess its use as filler in producing artificial marble. Marble waste was obtained from marble quarry located in Simpang Pulai, Ipoh and sieved into two different sizes; < 2mm as coarse particle and < 250 μm as fine particle. The artificial marble was prepared under vacuum condition and the composition of fine and coarse particles were modified between 40-70% (wt.) and 0-30% (wt.), respectively. The artificial marble was evaluated their performance by water absorption, flexural strength, compression strength, and Barcol hardness properties. It was found that artificial marble prepared with 60% (wt.) of fine particle and 10% (wt.) of coarse particle showed the best overall properties leading to a lowest water absorption and good flexural and compression strength. However, modification of marble waste content in the composition of artificial marble showed insignificant influence on Barcol hardness properties.

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Effect of ZrB2 Particle Size on Pressureless Sintering of ZrB2 - ß-Sic Composites

Journal of Aerospace Technology and Management ◽

10.5028/jatm.v11.1049 ◽

2019 ◽

Cited By ~ 3

Author(s):

Rosa Maria da Rocha ◽

Frank Ferrer Sene ◽

Mariah de Oliveira Juliani ◽

Caroline Oliveira Davi

Keyword(s):

Particle Size ◽

Flexural Strength ◽

Average Particle Size ◽

Theoretical Density ◽

Average Particle ◽

Pressureless Sintering ◽

High Melting Temperature ◽

Powder Samples ◽

Effect Of Particle Size ◽

Sic Composites

Zirconium diboride is an ultra high temperature ceramic material that leads this emerging class of materials because of its distinct combination of properties, including high melting temperature (> 3000 °C) and the lowest theoretical density (6.09 g·cm-3) among the borides. This combination of properties makes ZrB2 candidate for airframe leading edges on sharp-bodied reentry vehicles. In this work, the effect of particle size of ZrB2 on the pressureless sintering of ZrB2-SiC composites was studied, using ZrB2 powder with average particle size of 2.6 and 14.2µm. Four different vol% concentration of ß-SiC (0, 10, 20 and 30 vol%) were added to as-received and planetary milled ZrB2 powder. Samples were pressureless sintered at 2050 °C/1h in argon atmosphere. The reduction of initial ZrB2 particle size led to composites with better results of densification, mechanical properties and oxidation resistance regardless ß-SiC addition, showing relative densities around 92.5 %Theoretical Density (Td) and flexural strength and microhardness around 260 MPa and 17.5 GPa, respectively. Composites processed with as-received ZrB2 powder showed increasing in densification and flexural strength with the SiC content increasing. Relative density varied from 74.7 to 90.8 %TD and flexural strength from 102 to 241 MPa, for 0 and 30 vol% of SiC, respectively.

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The effect of particle size gradation of conductive fillers on the conductivity and the flexural strength of composite bipolar plate

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2007.11.013 ◽

2008 ◽

Vol 33 (3) ◽

pp. 1035-1039 ◽

Cited By ~ 31

Author(s):

S CHUNHUI

Keyword(s):

Particle Size ◽

Flexural Strength ◽

Bipolar Plate ◽

Conductive Fillers ◽

Effect Of Particle Size ◽

Particle Size Gradation

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Effect of particle size on the flexural strength and phase transformation of an airborne-particle abraded yttria-stabilized tetragonal zirconia polycrystal ceramic

Journal of Prosthetic Dentistry ◽

10.1016/j.prosdent.2013.07.007 ◽

2013 ◽

Vol 110 (6) ◽

pp. 510-514 ◽

Cited By ~ 31

Author(s):

Renata Garcia Fonseca ◽

Filipe de Oliveira Abi-Rached ◽

José Maurício dos Santos Nunes Reis ◽

Elisa Rambaldi ◽

Paolo Baldissara

Keyword(s):

Particle Size ◽

Phase Transformation ◽

Flexural Strength ◽

Tetragonal Zirconia ◽

Airborne Particle ◽

Effect Of Particle Size ◽

Tetragonal Zirconia Polycrystal

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Influence of Particle Size and Soak Conditions of the Species Simarouba amara on Cement-Wood Composites

Materials Science Forum ◽

10.4028/www.scientific.net/msf.881.265 ◽

2016 ◽

Vol 881 ◽

pp. 265-270 ◽

Cited By ~ 1

Author(s):

H.J.C.L. Bezerra ◽

S.J. Pereira ◽

Edson Jansen Pedrosa Miranda Jr. ◽

A.E.M. Paiva ◽

F.S. Politi

Keyword(s):

Particle Size ◽

Flexural Strength ◽

Mechanical Strength ◽

Heat Of Hydration ◽

Mix Design ◽

Cement Composites ◽

Wood Composite ◽

Wood Composites ◽

Effect Of Particle Size ◽

Wood Cement Composites

The purpose of this work was to produce a mix design rarely reported in the literature on wood-cement composites, i.e., 1:1:0.5 (cement:wood:water). This design was achieved by using CP IV-32 RS cement and adding 4% of ferric chloride additive plus fibers of the species Simarouba amara (paparaúba) retained on ASTM 7 and ASTM 10 sieves. Before mixing the fibers into the cement paste, they were presoaked for 15 minutes to between 84% to 136% of their mass. In these conditions, all the heat of hydration tests presented low inhibition. Panels measuring 300 x 450 x 25 mm were prepared, and the values of compressive and flexural strength of the composite after 28 days showed no significant differences with respect to soak, but the effect of particle size was significant. These results indicate that more fiber can be added in the mix design of this cement-wood composite without changing its mechanical strength, controlling only the presoak conditions.

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Effect of particle size of fumed silica on the puncture resistance of fabrics impregnated with shear thickening fluid

Journal of Engineered Fibers and Fabrics ◽

10.1177/15589250211061393 ◽

2021 ◽

Vol 16 ◽

pp. 155892502110613

Author(s):

Zhenqian Lu ◽

Zishun Yuan ◽

Jiawen Qiu

Keyword(s):

Particle Size ◽

Fumed Silica ◽

Shear Thickening ◽

Weight Fraction ◽

Areal Density ◽

Woven Fabrics ◽

Body Armor ◽

Shear Thickening Fluid ◽

Puncture Resistance ◽

Effect Of Particle Size

This paper presents an investigation into the effect of particle size of fumed silica on the puncture resistance of fabric impregnated with shear thickening fluid (STF). Two different types of STF were fabricated from fumed silica nanoparticles with particle sizes of 12 and 40 nm respectively. The effects of the particle size and weight fraction of the fumed silica on the rheological property were studied. STFs impregnated woven fabrics were fabricated and tested for stabbing resistance. STFs made of fumed silica with large particle size have better shear thickening effect. The stabbing resistant performance of STF impregnated fabrics improved notably with the same number of layers of fabric, and STFs impregnated fabric panels also outperform the untreated fabric panels with the same areal density. The results indicated that STFs made of fumed silica with larger particle size is able to fabricate a lighter soft body armor with higher stabbing protection.

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STUDYING THE EFFECT OF NATURAL BAMBOO AND RICE HUSK POWDERS ON COMPRESSIVE STRENGTH and HARDNESS OF ACRYLIC RESIN

THE IRAQI JOURNAL FOR MECHANICAL AND MATERIALS ENGINEERING ◽

10.32852/iqjfmme.v19i1.265 ◽

2019 ◽

Vol 19 (1) ◽

pp. 105-113

Author(s):

Jawad K Oleiwi ◽

Qahtan A Hamad ◽

Hadil J Abdul Rahman

Keyword(s):

Particle Size ◽

Compressive Strength ◽

Rice Husk ◽

Compression Strength ◽

Color Stability ◽

High Strength ◽

Acrylic Resin ◽

Weight Fraction ◽

Denture Base ◽

Effect Of Particle Size

Denture base is the part of a denture that rests on the foundation tissues and to which teeth areAttached. Denture base may be complete or partial used for the alteration of missing natural teeth.The most popular material utilized for the fabrication of dentures base is the poly (methylmethacrylate) (PMMA) because is distinguished by many characteristic. The remarkable clarity ofa methyl methacrylate resin, its relatively high strength and hardness, its color stability under allconditions of dental use, its insolubility in the mouth fluids, all of these properties combine toprovide an excellent material for the prosthetics denture (S. S Carmen, 2010 and R. K. Alla 2013).This survey illustrate the effect of particle size of powders and weight fraction of natural Bambooand Rice Husk powders on PMMA, with the selected size particles of (25?m and 75?m) andweight fraction (2, 4, 6 and 8wt. %), on compression strength and hardness, and these experiencewere accomplished at a temperature of laboratory. The results showed improved in the hardnessand compression with concentration rate of Rice Husk and Bamboo powders in compositesamples. Also, the highest values of compressive strength and hardness were (300MPa.) and (86)respectively for (PMMA-8%RH) and particle size (25 ?m).

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