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Listar por palabra clave "Nanoindentation"

Mostrando ítems 1-19 de 19

A Novel Proposal to Manipulate the Properties of Titanium Parts by Laser Surface Alloying

Fogagnolo, Joao Batista; Rodrigues, A. V.; Lima, Milton Sergio Fernandes de; Amigó Borrás, Vicente; Caram, Rubens (Elsevier, 2013-04-01)

A novel proposal is presented to increase the fatigue strength of titanium parts by applying a less rigid coating, which is expected to lower the tensile stresses at the surface and delay the onset of fatigue cracking. ...
A study of the influence of TiO2 addition in Al2O3 coatings sprayed by suspension plasma spray

Klyatskina, Elizaveta; Rayón Encinas, Emilio; Darut, G.; Salvador Moya, Mª Dolores; Sánchez, E.; Montavon, G. (Elsevier, 2015-09-25)

In this work, five different concentrations of a mixture of TiO2/Al2O3 nanopowders in an alcoholic suspension at 10wt.% solid content were sprayed by Suspension Plasma Spraying on steel discs. The influence of the presence ...
Correlación entre las propiedades macro, micro y nanomecánicas en polímeros termoplásticos biodegradables

Arrieta, Marina Patricia; Ferrándiz Bou, Santiago; López Martínez, Juan; Rayón Encinas, Emilio (Universitat Politècnica de Valencia, 2016-07-24)

[EN] In this work a study of the mechanical properties of a biodegradable polymer, poly(lactic acid) (PLA), and its variation due to the addition of 25 wt % of another biodegradable polymer, poly(hydroxybutyrate) (PHB) ...
Depth-sensing indentation applied to polymers: A comparison between standard methods of analysis in relation to the nature of the materials

Giró-Paloma, J.; Roa, J. J.; Díez-Pascual, A. M.; Rayón Encinas, Emilio; Flores, A.; Martínez, M.; Chimenos, J. M.; Fernández, A. I. (Elsevier, 2013-12)

Mechanical data (hardness and elastic modulus) from instrumented indentation testing are often extracted assuming linear elasticity in the initial portion of the unloading. The method is nowadays widely accepted as a ...
Effect of the filler on the nanomechanical properties of polypropylene in contact with paraffinic phase change material

Giro-Paloma, J.; Rayón Encinas, Emilio; Roa, J. J.; Martínez, M.; Fernández, A. I. (Elsevier, 2015-02)

[EN] As the changes on the mechanical properties with depth of indentation provide valuable information that may be suitable for design purposes, nanoindentation is an adequate technique for investigating the nanomechanical ...
Effect of the initial particle size distribution on the properties of suspension plasma sprayed Al2O3-TiO2 coatings

Vicent, M.; Bannier, E.; Carpio, P.; Rayón Encinas, Emilio; Benavente Martínez, Rut; Salvador Moya, Mª Dolores; Sánchez, E. (Elsevier Science SA, 2015-04-25)

Al2O3-TiO2 coatings have been deposited by atmospheric plasma spraying from agglomerated, nanostructured powders showing better properties than those of their conventional (microstructured) counterparts. These nanostructured ...
Effect of TiO2 addition on the microstructure and nanomechanical properties of Al2O3 Suspension Plasma Sprayed coatings

Bannier, E.; Vicent, M.; Rayón Encinas, Emilio; Benavente Martínez, Rut; Salvador Moya, Mª Dolores; Sánchez, E. (Elsevier, 2014-10-15)

Alumina-titania coatings are widely used in industry for wear, abrasion or corrosion protection components. Such layers are commonly deposited by atmospheric plasma spraying (APS) using powder as feedstock. In this study, ...
Enhanced hydrothermal resistance of Y-TZP ceramics through colloidal processing

Rayón Encinas, Emilio; Moreno, R.; Alcazar, C.; Salvador Moya, Mª Dolores; Manjón Herrera, Francisco Javier; Jimenez-Pique, E.; Llanes, L. (Wiley, 2013-04)

Two commercial zirconia powders with 3mol% of yttria (TZ3YE and TZ3YS, labeled as ZE and ZS, respectively) supplied by Tosoh (Japan) were used for this study. Maximum colloidal stability for ZE was achieved by dispersing ...
Enhancing the mechanical features of clay surfaces by the absorption of nano-SiO2 particles in aqueous media. Case of study on Bronze Age clay objects

Rayón, E.; Arrieta, Marina Patricia; Pasies -Oviedo, Trinidad; López-Martínez, Juan; Jorda Moret, Jose Luis (Elsevier, 2018)

[EN] Nanoparticles are known to be able to enhance the performance of low dense materials, achieving the small intergranular spaces to further interact with the matrix. In this work, a consolidation treatment of an ancient ...
Hardness and Young's modulus distributions in atmospheric plasma sprayed WC-Co coatings using nanoindentation

Rayón Encinas, Emilio; Bonache Bezares, Victoria; Salvador Moya, Mª Dolores; Roa, J. J.; Sánchez, E. (Elsevier, 2011-05-25)

A statistical indentation analysis of WC-Co coatings obtained by atmospheric plasma spray (APS) with two secondary plasma gases, H 2 and He, was investigated using an instrumented indentation technique with the aim of ...
Hardness of FRHC-Cu determined by statistical analysis

Roa, J. J.; Martínez, M.; Rayón Encinas, Emilio; Ferrer, N.; Espiell, F.; Segarra, M. (ASM International, 2014-02)

A statistical indentation method has been employed to study the hardness value of fire-refined high conductivity copper, using nanoindentation technique. The Joslin and Oliver approach was used with the aim to separate the ...
Influence of the Crystallographic Orientation on the Yield Strength and Deformation Mechanisms of Austenitic Grains in Metastable Stainless Steels Investigated by Spherical Nanoindentation

Roa, Joan Josep; Suarez, Sebastian; Yang, Huaidong; Fargas, Gemma; Guitar, Agustina; Rayón, Emilio; Green, Itzhak; Mateo, Antonio (Wiley, 2019-06)

[EN] The mechanical behavior of a metastable stainless steel is studied by 8 spherical nanoindentation, as a function of crystallographic orientation 9 of its austenitic grains. The residual imprints are analyzed by ...
Mechanical characterization of microlaminar structures extracted from cellulosic materials using nanoindentation technique

Rayón Encinas, Emilio; López Martínez, Juan; ARRIETA, Marina Patricia (Editura Academiei Romane, 2013-06)

[EN] Nanohardness (H) and elastic modulus (E) properties of several biomass by-products (fruit shells) have been characterized by nanoindentation technique. Two procedures were followed: (i) 3D topographic images for the ...
Mechanical properties of double-layer and graded composite coatings of YSZ obtained by atmospheric plasma spraying

Carpio-Cobo, Pablo; Rayón Encinas, Emilio; Salvador Moya, Mª Dolores; Lusvarghi, L.; Sanchez, E. (Springer Verlag (Germany), 2016-04)

Double-layer and graded composite coatings of yttria-stabilized zirconia were sprayed on metallic substrates by atmospheric plasma spray. The coating architecture was built up by combining two different feedstocks: one ...
Microstructure, mechanical, and thermogravimetric characterization of cellulosic by-products obtained from biomass seeds

Rayón Encinas, Emilio; Ferrándiz Bou, Santiago; Rico Beneito, María Isabel; López Martínez, Juan; ARRIETA, Marina Patricia (Taylor & Francis, 2015-06-03)

The microstructural, thermal, and nanomechanical characterization of biomass by-products coming from the food industry were studied. Scanning electron microscopy showed a microstructure formed by polygonal grains. The ...
Nanoindentation and tapping mode AFM study of phase separation in poly(ethyl acrylate-co-hydroxyethyl methacrylate) copolymer networks

Salmerón Sánchez, Manuel; Molina Mateo, José; Romero Colomer, Francisco Jose; Gómez Ribelles, José Luís (Elsevier, 2006-06)

[EN] According to our previous results the free radical copolymerization of ethyl acrylate and hydroxyethyl methacrylate gives rise to a system having chain composition and morphology different from that of the random ...
Nanoindentation study of the mechanical and damage behaviour of suspension plasma sprayed TiO2 coatings

Rayón Encinas, Emilio; Bonache Bezares, Victoria; Salvador Moya, Mª Dolores; Bannier, E.; Sánchez, E.; Denoirjean, A.; Ageorges, H. (Elsevier, 2012-01-25)

TiO2 coatings can be used as self-cleaning surfaces owing to their photocatalytic and hydrophilic properties. Suspension plasma spray (SPS) has proven to be a feasible and cheap technique for producing self-cleaning surfaces ...
Nanoindentation study of WC-12Co hardmetals obtained from nanocrystalline powders: Evaluation of hardness and modulus on individual phases

Bonache, V.; Rayón, E.; Salvador Moya, Mª Dolores; Busquets Mataix, David Jerónimo (Elsevier, 2010)

[EN] With the development of finer hardmetals, the study of mechanical properties of the different constituents down the micrometric level is a question of concern for materials optimization. Nanoindentation has been ...
Study of the solidification of M2 high speed steel Laser Cladding coatings

Candel Bou, Juan José; Franconetti Rodríguez, Patricia; Amigó Borrás, Vicente (Consejo Superior de Investigaciones Científicas (CSIC), 2013-09)

[EN] High speed steel laser cladding coatings are complex because cracks appear and the hardness is lower than expected. In this paper AISI M2 tool steel coatings on medium carbon AISI 1045 steel substrate have been ...