Sökning: "implant design and material"

Visar resultat 1 - 5 av 35 avhandlingar innehållade orden implant design and material.

1. 1. Protein and Cell Interactions with Nanostructured Surfaces

   Författare :Emma Westas; Chalmers tekniska högskola; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bacteria; titanium dioxide; implant associated infections; metabolomics; cellular interactions; hydroxyapatite; immune complement activation; silica; nanoparticles; photocatalysis; protein adsorption; Nanostructured implants;

   Sammanfattning : A great challenge of today’s implant development is to construct a surface that promotes tissue integration and avoids bacterial colonization. To avoid implant related infections, many argue that a surface promoting strong cell adhesion and tissue integration in favour for bacterial adhesion would solve the problem, the so-called race for the surface concept. LÄS MER

3. 2. Tailoring structure and morphology during additive manufacturing of metallic components

   Författare :Jithin James Marattukalam; Björgvin Hjörvarsson; Ulf Jansson; Martin Sahlberg; Lars Nyborg; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Selective laser melting; process parameters; scanning methodologies; AMLOYZR01; bulk metallic glass; 316L SS; grain orientation;

   Sammanfattning : The work described in this thesis explores the use of laser process parameters to functionalize the material properties by the control of microstructure and optimization of morphology in components by selective laser melting. The microstructure in amorphous and crystalline metallic alloy systems is influenced by changing the laser power density and scanning strategies respectively. LÄS MER

4. 3. Electron beam melting: Impact of part surface properties on metal fatigue and bone ingrowth

   Författare :Rebecca Klingvall Ek; Lars-Erik Rännar; Mikael Bäckström; Jaan Hong; Ola Harrysson; Mittuniversitetet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Additive Manufacturing AM ; Electron Beam Melting EBM ; As-built surfaces; Bone Ingrowth; Metall Fatigue; Machined Surfaces; Hirtisation; Hot Isostatic Pressing HIP ;

   Sammanfattning : AbstractThe aim of this thesis is to investigate aspects on how additive manufacturing (AM) contributes to functional bone implants with the use of the electron beam melting (EBM) technology. AM manufactures parts according to computer-aided design, and the EBM technology melts powder using an electron beam, which acts similar to a laser beam. LÄS MER

5. 4. On Influence Of Undersized Implant Site On Implant Stability And Osseointegration

   Författare :Michele Stocchero; Malmö universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dental implant; primary stability; surgical protocol; undersized osteotomy;

   Sammanfattning : The use of dental implants for the rehabilitation of edentulous areas is an established treatment, showing high success rates. Primary stability is one of the pre-requisites for osseointegration, and it is ensured by the mechanical interlocking at the bone to implant interface. LÄS MER

7. 5. Analysis and Monitoring of Laser Welding and Surface Texturing

   Författare :Rickard Olsson; Alexander Kaplan; John Powell; Jan Frostevarg; Michael Zäh; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Laser welding; monitoring; Signal processing; laser texturing; texture analysis; Produktionsutveckling; Manufacturing Systems Engineering;

   Sammanfattning : This thesis can be conveniently divided into three sections as follows;Part I. Monitoring of laser welding In laser materials processing there has always been a need for suitable methods to supervise and monitor the processes on-line, to ensure correct production quality or to trigger alarms when failures are detected. LÄS MER