Universitat Politècnica de Catalunya
Now showing items 77-96 of 110
Mechanical characterization of micro-volume systems, as thin films or micro-sized phases embedded in multiphase materials, has attracted special interest in the last decades since different micromechanical techniques have ...
In this thesis, we study the improvement of the UV protection of polyester textiles by introducing nano or microparticles of TiO2 in the polyester during the extrusion of the yarn. Initially, the influence of different ...
La present tesi investiga l'ús de la modelització amb elements finits per a l'estudi de la biomecànica lumbar per a l'avaluació clínica. Els estudis bibliogràfics del capítol 1 mostren relacions funcionals clares entre les ...
La motivació de la tesis deriva en el interès de la indústria aeronàutica a explotar, per mitjà d'un disseny adaptat, la utilització del gir d'esquerda per protegir els reforços situats davant una esquerda que s'està ...
The purpose of this PhD thesis was to investigate the sensitivity of the rheological, thermal, mechanical and fracture behaviours on the topological changes induced in two commercial PLA grades. PLA 2002D and PLA 4032D ...
This study aims to investigate the underlying mechanisms which govern the development of dense defect networks in nanoscale crystal plasticity, either under contact and uniaxial loading conditions, with emphasis on the ...
Physical vapor deposited hard coatings comprised of cubic (c) transition metal (TM)-Al-N, and (TM)-Si-N are the current work horse materials for a large number of metal cutting and wear resistant applicatíons to light ...
La presente tesis doctoral (i.e., “New developments in calcium phosphate bone cements: approaching spinal applications”) aporta nuevos conocimientos en el campo de los cementos óseos de fosfato de calcio (CPBCs) en relación ...
When bone regeneration is needed, natural bone grafts are widely used. They are the best option since they present the same composition to that of bone, contain living cells with osteogenic potential, growth factors that ...
Nowadays, cardiovascular diseases are mainly treated by implantation of a metallic or polymeric mesh, called stent, which maintains the artery widely open. This technique shows very good clinical results, however, it exists ...
This Thesis aims at the development of two novel families of inorganic phosphate cements with suitable characteristics for clinical applications in hard tissue regeneration or replacement. It is organized in two distinct ...
Desde que fueron descubiertas en el principio de los años sesenta, las aleaciones con memoria de forma de NiTi han suscitado un interés creciente. Hoy en día, estos materiales se emplean extensivamente en el campo biomédico. ...
En la presente tesis doctoral se ha estudiado y caracterizado la obtención de capas de nitruro en titanio y Ti6Al4V mediante tratamiento termoquímico de nitruración para la mejora de la dureza superficial y de la resistencia ...
La presente Tesis Doctoral se titula "Obtención y caracterización de nuevos cementos óseos de fosfatos de calcio en el sistema DCP―alfa-TCP". Los cementos de fosfatos de calcio (CFC) son materiales biocompatibles que ...
Polymers have a wide range of applications. Their ability to be shaped into multiple forms makes it possible to obtain polymer films, which are highly used in industries such as food and pharmaceuticals. Characterization ...
Se desarrolla un estudio numérico-experimental de la microestructura de solidificación y la segregación en palanquillas de aceros hipoeutectoides fabricadas con el proceso de colada continua. Un programa desarrollado en ...
En esta tesis doctoral se presenta la preparación y caracterización de espumas rígidas multifuncionales obtenidas a partir de compuestos y nanocompuestos en base polietileno (PE) y polipropileno (PP), indagando en la ...
PLA nanocomposites sheets that is rnodified with multi-functional epoxide reactive agent (Joncryi4300F, BASF, Germany) were manufacturad using reactive extrusion in a pilot plant. A commercial grade of PLA (PLA 40320, ...
In the last decades there has been growing interest in developing ceramic materials with high fracture toughness (Klc) and strength for structural applications. In the specific case of 3 mol% yttria-doped tetragonal zirconia ...
Ultrafine grain size Armco iron has been obtained through severe plastic deformation through equal channel angular pressing (ECAP) at room temperature, using a die with interna! angle et> = 90 º, and an angle 4J = 37 º ...
