نتایج جستجو برای: gel auto combustion

تعداد نتایج: 162150  

Journal: :Transactions of the JSME (in Japanese) 2017

Journal: :Results in physics 2022

In this study, a series of nanocrystalline Ni0.7Cu0.30AlxFe2-xO4 (x = 0.00 to 0.10 with step 0.02) has been synthesized through the sol–gel auto combustion technique. The structural, morphological, dielectric, and electrical properties nanoparticles are analyzed due substitution effect Al3+ content. structural study performed XRD FTIR analyses. extracted patterns assure single-phase cubic spine...

Journal: :Journal of Asian Ceramic Societies 2022

Metal oxide photocatalyst is a promising wastewater treatment process due to its simplicity, high efficiency, and low cost, as well being environmentally friendly non-energy consuming. The perovskite structure material, SrTi1?xNbxO3 (STNO) with x = 0, 0.01, 0.03, 0.05, was successfully synthesized by the sol-gel auto-combustion method. Samples pure phase cubic were obtained. Rietveld refinement...

Journal: :Cerâmica 2021

Ni and La substituted M-type Ca hexaferrite of composition CaNi1Fe11O19 CaLa1Fe11O19 were synthesized by sol-gel auto combustion method using metal nitrates as oxidants citric acid reducing agent. The prepared samples characterized X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), energy dispersive analysis (EDAX), vibrating sample magn...

Journal: :Entropy 2015
Jacek Hunicz Alejandro Medina Grzegorz Litak Pedro L. Curto-Risso Lev Guzmán-Vargas

In this study we summarize and analyze experimental observations of cyclic variability in homogeneous charge compression ignition (HCCI) combustion in a single-cylinder gasoline engine. The engine was configured with negative valve overlap (NVO) to trap residual gases from prior cycles and thus enable auto-ignition in successive cycles. Correlations were developed between different fuel injecti...

ژورنال: مواد پرانرژی 2012
شفیق زاده, حجت, شیخی نارانی, مجید, صابری مقدم, علی, قبادی, نرگس,

In this paper, preparation method of unsymmetrical di-methyl hydrazine with nano aluminum particles (50 and 130 nm) has been investigated. One of the important aspects of the research is the uniform dispersion of the nano particles in the fuel gel. Homogeneity of the fuel influences the quality of propellant combustion. The results showed that the combination of ultrasonic-mechanical-magnetic a...

Journal: :Journal of Sol-Gel Science and Technology 2022

Spinel ferrites are attaining huge importance in the modern era, due to their incredible properties, which means they widely used various fields. Therefore, this paper a cost-effective and environmentally friendly preparation of Mg0.25Ni0.25Cu0.5?xCoxFe1.97La0.03O4 (x = 0.0, 0.125, 0.25, 0.375, 0.5) via sol–gel auto-combustion method were carried out. How structural functional properties varied...

2010
John McAuley Lucy Hederman

Ethnomethodology is an established method of research in technology related fields. In work settings, ethnomethodology has helped researchers to deepen their understanding of how collaborative activities unfold in a social context. While much collaboration is now carried out online, through distributed teams for example, ethnomethodology, as a method of analysis, has not received considerable i...

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