Visualitza QUI_Articles per autoria "c59ed88f-d348-424e-b19b-53e707630c1c"
Ara mostrant els elements 21-37 d 37
-
Kinetic model of the dissolution process of a zirconium white frit. Influence of the temperature
Barba-Juan, Antonio; Jarque Fonfría, Juan Carlos; Orduña, Mónica; Gazulla Barreda, Maria Fernanda Elsevier (2015)The dissolution of a zirconium white frit has been studied in order to know the kinetics of the process. The concentrations of five cations (Ca, Mg, Zn, Si and B) have been determined by ICP-OES after carrying out the ... -
Magnetic complex permeability (imaginary part) dependence on the microstructure of a Cu-doped Ni–Zn-polycrystalline sintered ferrite
Barba-Juan, Antonio; Clausell-Terol, Carolina; Jarque Fonfría, Juan Carlos; Nuño, Luis Elsevier (2020-07)In this study, the effective complex magnetic permeability-imaginary part of a Cu doped-NiZn polycrystalline ferrite used as EMI suppressor has been quantitatively related to microstructural parameters. It has been observed ... -
Microstructure-dependent magnetic permeability in ferrites from nanoparticles
Barba-Juan, Antonio; Vicente-Agut, Nuria; Mormeneo-Segarra, Andrés; Clausell-Terol, Carolina Elsevier (2023-04-03)Ferrite samples of composition Cu0.12Ni0.23Zn0.65(Fe2O4) have been prepared by a conventional ceramic process using different sintering temperatures and dwell times. The average particle size is around 25–30 nm and, after ... -
New model to tune the dielectric properties of dense and half-dense sintered polycrystalline cu-doped Ni–Zn ferrite
Vicente-Agut, Nuria; Mormeneo-Segarra, Andrés; Clausell-Terol, Carolina; Barba-Juan, Antonio Elsevier (2021-11-30)Sintered polycrystalline Cu-doped Ni–Zn ferrite specimens have been successfully prepared by a conventional ceramic method using different pressure-temperature-time cycles. The studied samples, with an average grain size ... -
Obtainment of nanoparticulate CuNiZn ferrite powder by high-energy milling
Barba-Juan, Antonio; Clausell-Terol, Carolina; Jarque Fonfría, Juan Carlos; Monzó Fuster, María The Ceramic Society of Japan (2012-08)This study was undertaken to obtain nanoparticulate CuNiZn ferrite powder by high-energy milling, as this is an approach that could potentially be scaled up for industrial use. Such nanometric particles may be expected to ... -
Oxynitride glasses: a review
García Bellés, Àngel R.; Clausell-Terol, Carolina; Barba-Juan, Antonio Elsevier (2016)Oxynitride glasses are special types of silicates or silicoaluminates which have been the object of many studies over the last forty years. They can be prepared by means of various complex methods, leading to variable ... -
El proceso de secado por atomización: formación de gránulos y cinética de secado de gotas
Mondragon, Rosa; Juliá Bolívar, José Enrique; Barba-Juan, Antonio; Jarque Fonfría, Juan Carlos Sociedad Española de Cerámica y Vídrio (2013-07)Spray drying is a unit operation very common in many industrial processes. For each particular application, the resulting granulated material must possess determined properties that depend on the conditions in which the ... -
Processing–microstructure–properties relationship in a CuNiZn ferrite
Clausell-Terol, Carolina; Barba-Juan, Antonio Elsevier (2018)CuNiZn ferrites are polycrystalline ceramic materials that are used widely in electronic devices for a number of reasons, including their high permeability in the RF frequency region, electrical resistivity, mechanical ... -
Properties of Ca–(Y)–Si–Al–O–N–F Glasses: Independent and Additive Effects of Fluorine and Nitrogen
Monzó Fuster, María; Barba-Juan, Antonio; Clausell-Terol, Carolina; Pomeroy, M. J.; Hanifi, A. R.; Hampshire, S.; García Bellés, Àngel R. John Wiley & Sons (2013)Thirty glasses of composition (in equivalent percent) 20-xCa:xY:50Si:30Al:(100-y-z)O:yN:zF, with x = 0, 10; y = 0, 10, 20, and z = 0, 1, 3, 5, 7 were prepared by melting and casting. All glasses were X-ray amorphous. Glass ... -
Sintered microstructure effect on RF-wave shielding properties of a Cu-doped Ni–Zn-polycrystalline ferrite
Clausell-Terol, Carolina; Barba-Juan, Antonio; Nuño, Luis Elsevier (2021)The shielding properties of a Cu-doped Ni–Zn polycrystalline ferrite in the frequency range 1 MHz to 1 GHz were explored. Samples of composition (Cu0.12Ni0.23Zn0.65)Fe2O4 were prepared by the traditional ceramic route. The ... -
Stability of ceramic glaze compositions. Correlation between partial dissolution and rheological properties. Part 1
Gazulla Barreda, Maria Fernanda; Barba-Juan, Antonio; Orduña, Mónica; Bautista, Y. Society of Glass Technology (2012)When glaze compositions are prepared as aqueous suspensions, the frit is wet milled in an alumina ball mill with additives and water to obtain a glaze suspension with the appropriate rheological properties for subsequent ... -
Synthesis of frits with ZnO made from zamak waste
Mestre Beltrán, Sergio; Gómez-Tena, Maria Pilar; Agut, P.; Barba-Juan, Antonio; Añó, E. Göller Verlag GmbH (2008)The feasibility of using a zinc oxide obtained from zamak waste recovery as a raw material for frit synthesis has been studied. For this purpose, three widely used types of frit in the ceramic sector, which are characterised ... -
The influence of green microstructure and sintering parameters on precipitation process during copper-nickel-zinc ferrites sintering
Barba-Juan, Antonio; Clausell-Terol, Carolina; Jarque Fonfría, Juan Carlos; Monzó Fuster, María Elsevier (2014-04)Microstructural changes that occur during heat treatment of copper-nickel-zinc ferrites have been studied. The process of precipitation of the two types of crystals that occur during the sintering process has been analyzed. ... -
The role of the LATP particle size as a cornerstone of the cold sintering process
Mormeneo-Segarra, Andrés; Ferrer Nicomedes, Sergio; Vicente-Agut, Nuria; Barba-Juan, Antonio Elsevier (2024-02-13)An innovative sintering technique, the Cold Sintering Process (CSP), has been employed to obtain dense Li1.3Al0.3Ti1.7(PO4)3 (LATP) Solid-State Electrolytes (SSE) by optimising the particle size (d50) of the starting powder. ... -
Using in operando impedance spectroscopy technique to unravel the sintering process evolution of Bi2O3: LATP cold-sintered solid electrolyte
Mormeneo-Segarra, Andrés; Ferrer Nicomedes, Sergio; Simon, Sonia; Vicente-Agut, Nuria; Jarque Fonfría, Juan Carlos; Barba-Juan, Antonio Elsevier (2024)A NASICON-type Li1+xAlxTi2-x(PO4)3 (LATP) cold-sintered solid electrolyte is reported with a dense structure, as a possible alternative the commonly recognized liquid organic electrolytes. A low-temperature sintering ... -
ZnO and CuO crystal precipitation in sintering Cu-doped Ni-Zn ferrites. II. Influence of sintering temperature and sintering time
Barba-Juan, Antonio; Clausell-Terol, Carolina; Nuño, Luis; Jarque Fonfría, Juan Carlos Elsevier (2017-01)This paper presents a study of the precipitation of ZnO and CuO crystals during the sintering of Cu-doped Ni-Zn ferrites. The nature of the resulting crystal precipitates were analysed using scanning electron microscopy ... -
ZnO and CuO crystal precipitation in sintering Cu-doped Ni–Zn ferrites. I. Influence of dry relative density and cooling rate
Barba-Juan, Antonio; Clausell-Terol, Carolina; Jarque Fonfría, Juan Carlos; Monzó Fuster, María Elsevier (2011-10-15)This paper presents a study of the precipitation of ZnO and CuO crystals during the sintering of Cu-doped Ni–Zn ferrites. The nature of the Zn- and Cu-containing crystal precipitates was determined by scanning electron ...