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Mostrando ítems 21-40 de 296

    • closedAccess   Effect of tin concentration on the electrical properties of ceramic membranes used as separators in electrochemical reactors 

      García Gabaldón, Montserrat; Pérez-Herranz, Valentín; Sánchez-Vilches, Enrique; Mestre Beltrán, Sergio Elsevier (2008)
      This paper deals with the study of different microporous ceramic membranes used as separators in electrochemical reactors to treat the activating solutions coming from the electroless plating of polymers. The main component ...

    • closedAccess   Fracture properties of spray-dried powder compacts: Effect of granule size 

      José Luis, Amorós Albaro; Cantavella Soler, Vicente; Jarque Fonfría, Juan Carlos; Feliu Mingarro, Carlos Elsevier (2008)
      Inappropriate mechanical properties of spray-dried powder compacts lead to significant green product losses, entailing considerable costs in ceramic tile manufacture as well as serious environmental problems. In addition, ...

    • closedAccess   Densification of monomodal quartz particle beds by tapping 

      Mallol Gasch, Gustavo; José Luis, Amorós Albaro; Orts Tarí, María José; Llorens, D. Elsevier (2008)
      A study has been undertaken to determine how the mean particle size of monomodal quartz particle beds and the bed preparation method affect initial and final bed apparent density and the kinetics of densification by tapping. ...

    • closedAccess   Green strength testing of pressed compacts: An analysis of the different methods 

      José Luis, Amorós Albaro; Cantavella Soler, Vicente; Jarque Fonfría, Juan Carlos; Feliu Mingarro, Carlos Elsevier (2008)
      This paper presents a comparative study of three- and four-point bending tests and diametral compression (DC) tests, used to measure the mechanical strength of green pressed compacts. The study has been conducted on pressed ...

    • openAccess   Revestimentos cerâmicos: acima e além das aplicações tradicionais 

      Moreno Berto, Arnaldo Vicente Associação Brasileira de Cerâmica (2008)
      Nos últimos anos os revestimentos cerâmicos têm seguido a mesma tendência de inúmeros outros produtos dos chamados setores industriais tradicionais: a busca de novos usos e aplicações, que permitam ampliar seus mercados ...

    • openAccess   O Processo de coloração a seco de porcelanato. Parte 1: Variáveis envolvidas e influência sobre as propriedades das peças 

      García Sainz, Javier; Gallart, J C; Manrique, J; Ragnetti, Maurizio; García Ten, Francisco Javier; Moreno Berto, Arnaldo Vicente; Quereda, M F; Saburit Llaudis, Alejandro Associação Brasileira de Cerâmica (2008)
      Dentre as tipologias de revestimentos cerâmicos atualmente produzidos o porcelanato tem se destacado pela grande expansão em sua produção, observada nos últimos anos. O sucesso do produto se deve pelas propriedades técnicas ...

    • openAccess   O Processo de coloração a seco de porcelanato. Parte 2: Variáveis envolvidas e influência sobre as propriedades das peças 

      García Sainz, Javier; Gallart, J C; Manrique, J; Ragnetti, Maurizio; García Ten, Francisco Javier; Moreno Berto, Arnaldo Vicente; Quereda, M F; Saburit Llaudis, Alejandro Associação Brasileira de Cerâmica (2008)
      Dentre as tipologias de revestimentos cerâmicos atualmente produzidos o porcelanato tem se destacado pela grande expansão em sua produção, observada nos últimos anos. O sucesso do produto se deve pelas propriedades técnicas ...

    • openAccess   The porcelain tile dry colouring proces 

      García Sainz, Javier; Gallart, J C; Manrique, J; Ragnetti, Maurizio; García Ten, Francisco Javier; Moreno Berto, Arnaldo Vicente; Quereda, M F; Saburit Llaudis, Alejandro Göller Verlag GmbH (2008)
      The influence of the variables involved in the dry coloring process on the behavior of porcelain tile bodies and the properties of the fired product during different manufacturing stages was examined. The dry-colored ...

    • closedAccess   Alkaline activation of metakaolin–fly ash mixtures: Obtain of Zeoceramics and Zeocements 

      Fernández Jiménez, Ana; Monzó Fuster, María; Vicent Cabedo, Mónica; Barba-Juan, Antonio; Palomo, A. Elsevier (2008-02)
      This study examines the variation in physico-mechanical properties and mineralogical and microstructural characteristics of the alkaline inorganic polymers obtained by alkaline activation, with a mixture of sodium silica ...

    • openAccess   Spatial and temporal variations in airborne particulate matter (PM10 and PM2.5) across Spain 1999–2005 

      Querol, Xavier; Alastuey, Andres; Moreno, T.; Viana, Marcelo; Castillo, S.; Pey, J.; Rodríguez, S.; Artiñano, B.; Salvador, P.; Sánchez, M. M.; García Dos Santos, S.; Herce Garraleta, M. D.; Fernández Patier, R.; Moreno Grau, S.; Negral, L.; Minguillón Bengochea, María Cruz; Monfort, Eliseo; Sanz, M. J.; Palomo Martín, R.; Pinilla Gil, E.; Cuevas, E.; De la Rosa, J.; Sánchez de la Campa, Ana María (2008-06)
      Average ranges of particulate matter (PM10 and PM2.5) concentrations and chemical composition in Spain show significant variations across the country, with current PM10 levels at several industrial and traffic hotspots ...

    • closedAccess   Influence of macroscopic residual stresses on the mechanical behavior and microstructure of porcelain tile 

      De Noni, Agenor; Hotza, Dachamir; Cantavella Soler, Vicente; Sánchez-Vilches, Enrique Elsevier (2008-09)
      The development of macroscopic residual stress, as in glass-tempering processes, was studied for porcelain tile. Mechanical strength was observed to increase less than might be theoretically expected, owing to deterioration ...

    • closedAccess   Analysis of the development of microscopic residual stresses on quartz particles in porcelain tile 

      De Noni, Agenor; Hotza, Dachamir; Cantavella Soler, Vicente; Sánchez-Vilches, Enrique Elsevier (2008-10)
      This paper examines the development of microscopic residual stresses on quartz particles in porcelain tile using the XRD technique. The study was conducted with a typical porcelain tile composition consisting of sodium ...

    • closedAccess   Receptor models application to multi-year ambient PM10 measurements in an industrialized ceramic area: comparison of source apportionment results 

      Pandolfi, Monica; Viana, Marcelo; Minguillón Bengochea, María Cruz; Querol, Xavier; Alastuey, Andres; Amato, F.; Celades López, Irina; Escrig, Alberto; Monfort, Eliseo Elsevier (2008-12)
      Ambient PM10 data collected in one of the largest industrialized ceramic areas of Europe were used to study similarities and differences in the source apportionment results from three widespread receptor models: chemical ...

    • closedAccess   PM companies eye a new future of taking medicine 

      Felton, R.; Imgrund, P.; Petzoldt, F.; Friederici, V.; Busquets Mataix, David Jerónimo; Reig, Lucía; Amigó Borrás, Vicente; Calero Carretero, José Ángel Elsevier (2009)
      As the credit squeeze threatens many small companies in the PM supply chain, some are looking to pastures new, and hi-tech pastures at that, for inspiration, new business directions and profitability.... © 2009 Elsevier ...

    • closedAccess   Effect of ceramic industrial particulate emission control on key components of ambient PM10 

      Minguillón Bengochea, María Cruz; Monfort, Eliseo; Querol, Xavier; Alastuey, Andres; Celades López, Irina; Miró, José Vicente Elsevier (2009)
      The relationship between specific particulate emission control and ambient levels of some PM10 components (Zn, As, Pb, Cs, Tl) was evaluated. To this end, the industrial area of Castellón (Eastern Spain) was selected, where ...

    • closedAccess   Determination of the wear resistance of traditional ceramic materials by means of micro-abrasion technique 

      Ibáñez, María Jesús; Gilabert, Jessica; Vicent Cabedo, Mónica; Gómez-Tena, Maria Pilar; Muñoz, D. Elsevier (2009)
      Micro-abrasion techniques enable the surface wear of materials to be studied with greater precision than provided by other methods. In addition to their reliability, micro-abrasion techniques allow the wear phenomenon of ...

    • closedAccess   Foaming of flat glass cullet using Si3N4 and MnO2 powders 

      Saburit Llaudis, Alejandro; Orts Tarí, María José; García Ten, Francisco Javier; Bernardo, Enrico; Colombo, Paolo Elsevier (2009)
      The introduction of a compound capable of releasing oxygen, such as MnO2, greatly improves the foaming ability of Si3N4 used as foaming agent in soda-lime glass powder, leading to expansion at a relatively low temperature ...

    • closedAccess   Quantifying road dust resuspension in urban environment by Multilinear Engine: A comparison with PMF2 

      Amato, F.; Pandolfi, Monica; Escrig, Alberto; Querol, Xavier; Alastuey, Andres; Pey, J.; Pérez, N.; Hopke, P. K. Elsevier (2009)
      Atmospheric PM pollution from traffic comprises not only direct emissions but also non-exhaust emissions because resuspension of road dust that can produce high human exposure to heavy metals, metalloids, and mineral matter. ...

    • closedAccess   Effect of quartz particle size on the mechanical behaviour of porcelain tile subjected to different cooling rates 

      De Noni, Agenor; Hotza, Dachamir; Cantavella Soler, Vicente; Sánchez-Vilches, Enrique Elsevier (2009-04)
      Porcelain tile is a high-performance ceramic tile, in which quartz is a major compositional component. After the firing cycle, macroscopic residual stresses develop in the product as a result of rapid cooling. Further, ...

    • closedAccess   Monitoring and possible reduction of HF in stack flue gases from ceramic tiles 

      Monfort, Eliseo; García Ten, Francisco Javier; Celades López, Irina; Gomar Peiró, Salvador Elsevier (2010)
      HF (hydrogen fluoride) emission control is one of the critical environmental parameters in the firing of ceramic materials at peak temperatures higher than 1000 °C. In this study, in-stack concentrations of HF were monitored ...