Rivista e Edizione

Volume 22 (2022): Edizione 3 (September 2022)

Volume 22 (2022): Edizione 2 (June 2022)

Volume 22 (2022): Edizione 1 (March 2022)

Volume 21 (2021): Edizione 4 (December 2021)

Volume 21 (2021): Edizione 3 (September 2021)

Volume 21 (2021): Edizione 2 (June 2021)

Volume 21 (2021): Edizione 1 (March 2021)

Volume 20 (2020): Edizione 4 (December 2020)

Volume 20 (2020): Edizione 3 (September 2020)

Volume 20 (2020): Edizione 2 (June 2020)

Volume 20 (2020): Edizione 1 (March 2020)

Volume 19 (2019): Edizione 4 (December 2019)

Volume 19 (2019): Edizione 3 (September 2019)

Volume 19 (2019): Edizione 2 (June 2019)

Volume 19 (2019): Edizione 1 (March 2019)

Volume 18 (2018): Edizione 4 (December 2018)

Volume 18 (2018): Edizione 3 (September 2018)

Volume 18 (2018): Edizione 2 (June 2018)

Volume 18 (2018): Edizione 1 (March 2018)

Volume 17 (2017): Edizione 4 (December 2017)

Volume 17 (2017): Edizione 3 (September 2017)

Volume 17 (2017): Edizione 2 (June 2017)

Volume 17 (2017): Edizione 1 (March 2017)

Volume 16 (2016): Edizione 4 (December 2016)

Volume 16 (2016): Edizione 3 (September 2016)

Volume 16 (2016): Edizione 2 (June 2016)

Volume 16 (2016): Edizione 1 (March 2016)

Volume 15 (2015): Edizione 4 (December 2015)

Volume 15 (2015): Edizione 3 (September 2015)

Volume 15 (2015): Edizione 2 (June 2015)

Volume 15 (2015): Edizione 1 (March 2015)

Volume 14 (2014): Edizione 4 (December 2014)

Volume 14 (2014): Edizione 3 (September 2014)

Volume 14 (2014): Edizione 2 (June 2014)

Volume 14 (2014): Edizione 1 (March 2014)

Volume 13 (2013): Edizione 4 (December 2013)

Volume 13 (2013): Edizione 3 (September 2013)

Volume 13 (2013): Edizione 2 (June 2013)

Volume 13 (2013): Edizione 1 (March 2013)

Volume 12 (2012): Edizione 4 (December 2012)

Volume 12 (2012): Edizione 3 (October 2012)

Volume 12 (2012): Edizione 2 (June 2012)

Volume 12 (2012): Edizione 1 (March 2012)

Volume 11 (2011): Edizione 4 (December 2011)

Volume 11 (2011): Edizione 3 (September 2011)

Volume 11 (2011): Edizione 2 (June 2011)

Volume 11 (2011): Edizione 1 (March 2011)

Volume 10 (2010): Edizione 4 (December 2010)

Volume 10 (2010): Edizione 3 (September 2010)

Volume 10 (2010): Edizione 2 (June 2010)

Volume 10 (2010): Edizione 1 (March 2010)

Volume 9 (2009): Edizione 4 (December 2009)

Volume 9 (2009): Edizione 3 (September 2009)

Volume 9 (2009): Edizione 2 (June 2009)

Volume 9 (2009): Edizione 1 (March 2009)

Volume 8 (2008): Edizione 4 (December 2008)

Volume 8 (2008): Edizione 3 (September 2008)

Volume 8 (2008): Edizione 2 (June 2008)

Volume 8 (2008): Edizione 1 (March 2008)

Dettagli della rivista
Formato
Rivista
eISSN
2083-4799
ISSN
1730-2439
Pubblicato per la prima volta
23 Sep 2008
Periodo di pubblicazione
4 volte all'anno
Lingue
Inglese

Cerca

Volume 12 (2012): Edizione 4 (December 2012)

Dettagli della rivista
Formato
Rivista
eISSN
2083-4799
ISSN
1730-2439
Pubblicato per la prima volta
23 Sep 2008
Periodo di pubblicazione
4 volte all'anno
Lingue
Inglese

Cerca

3 Articoli
Accesso libero

Preparation of SiO2 coating by sol-gel method, to improve high-temperature corrosion resistance of a γ-TiAl phase based alloy

Pubblicato online: 10 Jan 2013
Pagine: 5 - 12

Astratto

Abstract

This study presents the test results of Ti-46Al-7Nb-0.7Cr-0.1Si-0.2Ni alloy isothermal oxidation with regard to a coating of SiO2 deposited by the sol-gel method. The oxidation test was carried out in air at 900°C. The SiO2 coating is not an effective and stable diffusive barrier, which would considerably improve oxidation resistance of Ti-46Al-7Nb-0.7Cr-0.1Si-0.2Ni alloy.

Parole chiave

  • intermetallics
  • high temperature corrosion
  • oxidation
  • coatings
Accesso libero

XPS measurements of passive film formed on AISI 316L SS after electropolishing in a magnetic field (MEP)

Pubblicato online: 10 Jan 2013
Pagine: 13 - 22

Astratto

Abstract

Electrochemical polishing of metals and alloys is one of the most currently used finishing treatments, covering metallic biomaterials with complicated shapes (coronary stents, prostheses, etc.). A standard electropolishing (EP) process has been recently modified by including a magnetic field, and called the magnetoelectropolishing (MEP). Many surface properties and even mechanical features may be modified and improved by MEP. The changes are concerned with the surface film composition which undergo a modification. For the present studies, X-ray Photoelectron Spectroscopy (XPS) analysis was applied to measure the surface film composition on AISI 316L stainless steel. In conclusion both Cr-X/Fe-X compounds ratio as well as Cr/Fe total ratio of the 316L steel after EP and MEP were calculated and compared to reveal the advantage of the magnetic field used.

Parole chiave

  • 316L SS
  • XPS results
  • Magnetoelectropolishing
Accesso libero

Water sorption and blistering of GFRP laminates with varying structures

Pubblicato online: 10 Jan 2013
Pagine: 23 - 29

Astratto

Abstract

The microstructures, water absorption as well as blistering was studied for bi- and tri- axial glass fibre vinyl ester and polyester -matrix laminates coated with gel coat layer and uncoated. The effect of manufacturing technique on water sorption characteristics was considered. It was found that water sorption characteristics of GFRP depend on manufacturing methods. The least water intake was found for specimens having perfect microstructure due to manufacturing by infusion process. Water sorption saturation value was reached after ca. 50 days of accelerated test at 70°C and was found to correspond to 250 days conditioning at 20°C. Blistering evolution was illustrated and SEM images shown corresponding to degradation of the gel coat layer and the laminate during the exposure in water.

Parole chiave

  • Polymer composites
  • durability
  • scanning electron microscopy (SEM)
3 Articoli
Accesso libero

Preparation of SiO2 coating by sol-gel method, to improve high-temperature corrosion resistance of a γ-TiAl phase based alloy

Pubblicato online: 10 Jan 2013
Pagine: 5 - 12

Astratto

Abstract

This study presents the test results of Ti-46Al-7Nb-0.7Cr-0.1Si-0.2Ni alloy isothermal oxidation with regard to a coating of SiO2 deposited by the sol-gel method. The oxidation test was carried out in air at 900°C. The SiO2 coating is not an effective and stable diffusive barrier, which would considerably improve oxidation resistance of Ti-46Al-7Nb-0.7Cr-0.1Si-0.2Ni alloy.

Parole chiave

  • intermetallics
  • high temperature corrosion
  • oxidation
  • coatings
Accesso libero

XPS measurements of passive film formed on AISI 316L SS after electropolishing in a magnetic field (MEP)

Pubblicato online: 10 Jan 2013
Pagine: 13 - 22

Astratto

Abstract

Electrochemical polishing of metals and alloys is one of the most currently used finishing treatments, covering metallic biomaterials with complicated shapes (coronary stents, prostheses, etc.). A standard electropolishing (EP) process has been recently modified by including a magnetic field, and called the magnetoelectropolishing (MEP). Many surface properties and even mechanical features may be modified and improved by MEP. The changes are concerned with the surface film composition which undergo a modification. For the present studies, X-ray Photoelectron Spectroscopy (XPS) analysis was applied to measure the surface film composition on AISI 316L stainless steel. In conclusion both Cr-X/Fe-X compounds ratio as well as Cr/Fe total ratio of the 316L steel after EP and MEP were calculated and compared to reveal the advantage of the magnetic field used.

Parole chiave

  • 316L SS
  • XPS results
  • Magnetoelectropolishing
Accesso libero

Water sorption and blistering of GFRP laminates with varying structures

Pubblicato online: 10 Jan 2013
Pagine: 23 - 29

Astratto

Abstract

The microstructures, water absorption as well as blistering was studied for bi- and tri- axial glass fibre vinyl ester and polyester -matrix laminates coated with gel coat layer and uncoated. The effect of manufacturing technique on water sorption characteristics was considered. It was found that water sorption characteristics of GFRP depend on manufacturing methods. The least water intake was found for specimens having perfect microstructure due to manufacturing by infusion process. Water sorption saturation value was reached after ca. 50 days of accelerated test at 70°C and was found to correspond to 250 days conditioning at 20°C. Blistering evolution was illustrated and SEM images shown corresponding to degradation of the gel coat layer and the laminate during the exposure in water.

Parole chiave

  • Polymer composites
  • durability
  • scanning electron microscopy (SEM)

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