Pérez-Campos, Rafael; Fayos-Fernández, José; Monzó-Cabrera, Juan; Martín Salamanca, Fernando; López Valentín, Juan; Catalá Civera, José Manuel; Plaza González, Pedro José; Sánchez-Marín, Juan Rafael(MDPI AG, 2022-09)
[EN] Many efforts are being made to find innovative ways of recycling rubber from end-of-life tires (ELTs), also called ground tire Rubber (GTR). Recycling through devulcanization allows the reintroduction of rubber back ...
Lagunas-Chavarría, Anggel; Navarro-Rojero, María Guadalupe; Salvador Moya, Mª Dolores; Benavente Martínez, Rut; Catalá Civera, José Manuel; Borrell Tomás, María Amparo(MDPI AG, 2022-06)
[EN] Lead-free piezoelectric powders (K0.44Na0.52Li0.04)(Nb0.82Ta0.10Sb0.04)O-3 were obtained by conventional and microwave-assisted reactive heating. Firstly, the synthesis of the material was carried out following the ...
Gutiérrez Cano, José Daniel; Hamilton, Ian E.; Catalá Civera, José Manuel; Bows, John; Penaranda-Foix, Felipe L.(Elsevier, 2018)
[EN] The evolution of dielectric properties of starch-based food pellets with different moisture contents was measured during microwave expansion to determine the effect of water content on the expansion dynamics.
Dynamic ...
PRESENDA-BARRERA, ALVARO; Salvador Moya, Mª Dolores; Penaranda-Foix, Felipe L.; Catalá Civera, José Manuel; Pallone, Eliria; Ferreira, Julieta; Borrell Tomás, María Amparo(Elsevier, 2017)
[EN] Innovative techniques for materials processing that result in shorter times and lower energy
consumption than conventional methods, such as microwave sintering, are currently under investigation
in order to obtain ...
Marqués-Villarroya, David; Penaranda-Foix, Felipe L.; García-Baños, Beatriz; Catalá Civera, José Manuel; Gutiérrez Cano, José Daniel(Institute of Electrical and Electronics Engineers, 2017)
[EN] An enhanced full-wave method based on circuit analysis is presented in this paper, where the whole set of modes TEmnp and TMmnp are taken into account. The modeling of a split cylinder resonator is done with two circuit ...
García Baños, Beatriz(Universitat Politècnica de València, 2011-04-01)
En esta tesis se realiza el análisis y la optimización del diseño de sensores de microondas, basados tanto en guías de onda coaxiales como en circuitos planares, para poder llevar a cabo la caracterización dieléctrica de ...
López-Buendía, Angel M.; García-Baños, Beatriz; Urquiola, M. Mar; Catalá Civera, José Manuel; Penaranda-Foix, Felipe L.(The Royal Society of Chemistry, 2020-12-21)
[EN] Mineral transformations of the gypsum-anhydrite system under microwave heating have been studied using in situ dielectric thermal analysis (MW-DETA) and Raman spectroscopy simultaneously. The dielectric properties of ...
Guillén-Pineda, René M.; Salvador Moya, Mª Dolores; Gutiérrez-González, Carlos F.; Catalá Civera, José Manuel; Borrell Tomás, María Amparo(Blackwell Publishing, 2021-11)
[EN]
The purpose of this research is focused on the manufacture and characterization of a partially stabilized zirconia ceramic with 3 mol% of Yttria and doped with .5 and 1.5 mol% of Nb2O5 to analyze the influence of ...
Benavente Martínez, Rut; Borrell Tomás, María Amparo; Salvador Moya, Mª Dolores; Garcia-Moreno, O.; Penaranda-Foix, Felipe L.; Catalá Civera, José Manuel(Elsevier, 2014-01)
Microwave heating is proposed as non-conventional technique for the sintering of optimal lithium aluminosilicate compositions of β-eucryptite system. The coefficient of thermal expansion and mechanical properties of ...
Marqués-Villarroya, David; Penaranda-Foix, Felipe L.; García-Baños, Beatriz; Catalá Civera, José Manuel; Gutiérrez Cano, José Daniel(The Electromagnetics Academy (EMW Publishing), 2017)
[EN] In this paper, a general multilayer circular cavity with N slabs is analyzed analytically, obtaining characteristic equations for TE and TM modes to compute the complex resonant frequency efficiently using an algorithm ...
Jiménez Reinosa, Julian; García-Baños, Beatriz; Catalá Civera, José Manuel; López-Buendía, Ángel M.; Guaita, Luis; Fernández, Jose F.(Wiley, 2019-04)
[EN] The advantages of microwave (MW) energy processing have been verified in the sintering of a ceramic frit at a pre-industrial scale. The challenge of achieving high temperature using MW energy at such dimensions was ...
Penaranda-Foix, Felipe L.; Catalá Civera, José Manuel; Canós Marín, Antoni Josep; García Baños, Beatriz(Wiley: 12 months, 2015-08)
This article proposes the use of argument principle method (APM) to find all complex resonant frequencies in a three layer cylindrical cavity. APM guarantees that no root is lost and frequencies can be associated with the ...
García-Baños, Beatriz; Plaza González, Pedro José; Sánchez-Marín, Juan Rafael; Steger, Sebastian; Feigl, Alexander; Penaranda-Foix, Felipe L.; Catalá Civera, José Manuel(Elsevier, 2022-01-25)
[EN] A new approach based on dielectric slabs with adjustable position is proposed as near-field focusing lenses inside a single-mode microwave applicator to provide specific temperature distributions within a material ...
Penaranda-Foix, Felipe L.; Janezic, Michael D.; Catalá Civera, José Manuel; Canós Marín, Antoni Josep(Institute of Electrical and Electronics Engineers (IEEE), 2012-09)
In this paper, a full-wave method for the electromagnetic analysis of dielectric-loaded cylindrical and coaxial waveguides and cavities is developed. For this purpose, a new four-port ring network is proposed, and the ...
Marqués-Villarroya, David; Canós Marín, Antoni Josep; Penaranda-Foix, Felipe L.; García-Baños, Beatriz; Catalá Civera, José Manuel(Institute of Electrical and Electronics Engineers, 2018)
[EN] A novel dielectrometer to measure the complex permittivity of high-loss liquids is presented. The geometry consists of a reentrant cavity with insertion holes, where the holder filled with liquid can be introduced ...
García-Baños, Beatriz; Catalá Civera, José Manuel; Sánchez-Marín, Juan Rafael; Navarrete Algaba, Laura; López-Buendía, Angel M.; Schmidt, Lukas(MDPI AG, 2020-05)
[EN] In this work, the carbothermic reduction of iron- and zinc-bearing products is studied through in situ microwave heating, dielectric properties monitoring, and mass spectrometry up to high temperatures (1000 degrees ...
Gutiérrez Cano, José Daniel; Catalá Civera, José Manuel; López Buendía, Ángel M.; Plaza González, Pedro José; Penaranda-Foix, Felipe L.(MDPI AG, 2022-02)
[EN] The identification of the minerals composing rocks and their dielectric characterization is essential for the utilization of microwave energy in the rock industry. This paper describes the use of a near-field scanning ...
Serra Alfaro, José Manuel; Borras-Morell, J. F.; García-Baños, Beatriz; Balaguer Ramirez, Maria; Plaza González, Pedro José; Santos-Blasco, J.; Catalán-Martínez, David; Navarrete Algaba, Laura; Catalá Civera, José Manuel(Nature Publishing Group, 2020-11)
[EN] Hydrogen is a promising vector in the decarbonization of energy systems, but more efficient and scalable synthesis is required to enable its widespread deployment. Towards that aim, Serra et al. present a microwave-based ...
Gutiérrez Cano, José Daniel; Catalá Civera, José Manuel; Penaranda-Foix, Felipe L.; Plaza González, Pedro José(Elsevier, 2022-03)
[EN] Accurate determination of permittivity is a crucial factor for successfully developing new food processing technologies at radio frequencies. An improved measurement test fixture based on an open-ended coaxial probe ...
Canós Marín, Antoni Josep; García Baños, Beatriz; Catalá Civera, José Manuel; Penaranda-Foix, Felipe L.; Gutiérrez Cano, José Daniel(Institute of Electrical and Electronics Engineers (IEEE), 2013-12)
An improvement of the accuracy of dielectric measurements of the open-ended coaxial resonator method is described. The technique is based on an empirical technique for
de-embedding the coupling network excited by electric ...