Results 11 to 20 of about 101,875 (254)

SiO2 ساخت و بررسی فیبرهای توخالی [PDF]

open access: yesفیزیک کاربردی ایران, 2014
در این مقاله برای ساخت فیبرهای توخالی SiO2 از فیبرهای پنبه استفاده کردیم. به این صورت که سوسپانسیونی از پودر SiO2 و آب دیونیزه درست کرده و مقداری از پنبه را در این سوسپانسیون خیسانده و سپس خشک می‌کنیم.
رضا ثابت داریانی   +1 more
doaj   +1 more source

Experimental Investigation on Wire Electric Erosion Behaviour of Silicon Dioxide Particulate Reinforced Composite [PDF]

open access: yesArchives of Metallurgy and Materials
The intend of current study was focused on the prediction of material removal rate (MRR) and surface roughness (SR) for the AA7050-SiO2 composite during wire electric erosion or discharge machining (WEDM) process using a brass (Br) wire electrode.
S.V. Alagarsamy, B. Vinoth, D. Deepak
doaj   +1 more source

The Use of Rice Husk Silica in Modified Zinc Oxide Photocatalysts to Reduce Chromium Concentration

open access: yesJurnal Kimia Valensi, 2020
Rice husk ash contains approximately 90-98% dry weight of silica and they have been reported to have several advantages compared to mineral silica. One of these is its application as a filler in ZnO photocatalysts using the sol-gel method. This study was,
Diana Rakhmawaty Eddy   +3 more
doaj   +1 more source

Analysis and Characterization of Colloidal Particles in Yangbajing Geothermal Water, Tibet

open access: yesYankuang ceshi, 2023
BACKGROUNDThe hydrochemical characteristics of geothermal water include various information such as geological, structural, fracture, alteration, and environmental changes during its formation.
Gaoling LIU   +8 more
doaj   +1 more source

Cu/Cu bonding and SiO2/SiO2 bonding by surface activated bonding at room temperature for hybrid bonding technique

open access: yesNihon Kikai Gakkai ronbunshu, 2015
It has been said that the end of Moore’s law will be reached in 10 to 20 years. Three dimensional integration technology is expected to be a possible solution in the post-Moore era.
Jun UTSUMI, Kensuke IDE
doaj   +1 more source

Production of Superhydrophobic Cotton Fabric by Layer-By-Layer Deposition of SiO2/TiO2-Polydimethylsiloxane

open access: yesJournal of Natural Fibers, 2023
In this study, the aim was to produce superhydrophobic cotton fabric by TiO2 and SiO2 nanoparticles, and polydimethylsiloxane using layer-by-layer deposition method.
Solomon Tilahun Desisa   +2 more
doaj   +1 more source

ANALISIS KANDUNGAN SiO2 PADA BATUAN GREEN TUFF DENGAN METODE GRAVIMETRIK

open access: yesJambura Physics Journal, 2020
Research has been conducted on the content of Silica dioxide (SiO2) in Green Tuff rocks from Bone of South Sulawesi Province. This Green Tuff rock is a type of sedimentary rock formed from volcanic ash released from a pit during a volcanic eruption. This
Nurul Fuadi, Ayu Annisa Amir
doaj   +1 more source

Kinetic, Isotherm and Thermodynamic Studies on the Removal of Zn (II) From Aqueous Solution using Silica Adsorbent [PDF]

open access: yesJournal of Advances in Environmental Health Research
Background: Water is essential for all life, but pollution, including heavy metals, poses severe health risks. The adsorption technology, known for being safe, cost-effective, and eco-friendly, uses silica to remove zinc ions from water.
Vivekanand Choudhary   +2 more
doaj   +1 more source

Mechanism and structure analysis of SiO2-coated CaCO3 superfine particles(SiO2包覆超细CaCO3的结构和机理分析)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2002
合成了表面包覆SiO2的超细CaCO3。通过XPS,RD对包覆表面层结构的分析,证实了SiO2以无定形包覆于CaCO3表面,并在其表面形成了Si-O-Ca键。对SiO2包覆超细CaCO3的机理分析结果可知:Na2SiO3的加入量是影响包覆效率的重要因素,由于硅酸易自聚,控制SiO2与CaCO3的重量比约为4%~5%时为包覆的最佳点;CaCO3晶粒度大小影响分散性能,进而影响包覆效率,分散性能好的包覆效率较高。
YUELin-hai(岳林海)   +2 more
doaj   +1 more source

The Influence of Continuous Shear, Shear History and Relaxation on the Rheological Behavior of Sio2/Glycerine Suspensions

open access: yesApplied Rheology, 2015
Suspensions of SiO2 microspheres in glycerine exhibit drastic shear-thickening behavior under steady shear and dynamic oscillatory shear test. The rheological behavior of suspensions agrees with the modified Cox-Merz rules as the dynamic oscillatory ...
Chen Yi   +3 more
doaj   +1 more source

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