Sökning: "composite microstructure"

Visar resultat 16 - 19 av 19 uppsatser innehållade orden composite microstructure.

1. 16. Production of Fe-TiB2composite using liquidphase sintering

   Master-uppsats, KTH/Materialvetenskap

   Författare :Otto Reuterdahl; [2013]
   Nyckelord :Fe-TiB2; composite; liquid phase sintering; bonding; powder; sintering;

   Sammanfattning : This thesis work focus on evaluating the metallurgical bonding between the TiB2 andiron grains in the Fe-TiB2 composite. The starting materials were commercial materialsin form of Ferro-boron and Ferro-titanium that together with pure TiB2 powder formeda material with the composition seen below:FeB + FeTi + TiB2  52.3TiB2 + 45. LÄS MER

3. 17. Measuring Bond Market Liquidity: An empirical study of the Chinese inter-bank bond market

   Magister-uppsats, Lunds universitet/Företagsekonomiska institutionen

   Författare :Shuman Zhang; Chaoqiong Shi; [2010]
   Nyckelord :inter-bank bond market; liquidity; principal-components analysis; Management of enterprises; Företagsledning; management; Business and Economics;

   Sammanfattning : This paper starts from the concept of liquidity, and applies principal-components analysis to construct a composite indicator of liquidity of the Chinese inter-bank bond market. The comprehensive score that results from the above-mentioned analysis overcomes shortcomings of previous single indicators that can merely cover one dimension of liquidity, and it is of great help to disclose the relationship between liquidity and the three factors, immediacy, transaction cost and transaction amount, and thus contributes to the further study on the microstructure of the Chinese inter-bank bond market. LÄS MER

4. 18. Sputtring av Ti-Si-C-Ag beläggningar från sammansatta sputterkällor

   Master-uppsats, Tunnfilmsfysik

   Författare :Gustav Edman Jönsson; [2009]
   Nyckelord :PVD; thin film physics; nanocomposite; electric contact; XRD; SEM; EDX; PVD; tunnfilmsfysik; nanokomposit; elektrisk kontakt; XRD; SEM; EDX;

   Sammanfattning : Idag används guld som kontaktmaterial på elektriska kontakter för lågströmstillämpningar. Guldhar emellertid låg nötningsbeständighet, är dyrt och miljömässigt påfrestande att utvinna. Ettalternativt kontaktmaterial till guld är nanokomposit Ti-Si-C-Ag belagt medlikströmsmagnetronsputtring. LÄS MER

5. 19. A comparison of SPS  and HP sintered, electroless copper plated carbon nanofibre composites for heat sink applications

   Master-uppsats, Institutionen för fysik, kemi och biologi

   Författare :Jennifer Ullbrand; [2009]
   Nyckelord :electroless plating; SPS; spark plasma sintering; HP; hot pressing; CNF; carbon nanofibre; carbon nanofiber; heat sinks; thermal conductivity; thermal diffusivity; Cu; composite; flash technique;

   Sammanfattning : The aim of this study is to synthesize a material with high thermal conductivity and a low coefficient of thermal expansion (CTE), useful as a heat sink. Carbon nanofibres (CNF) are first coated with copper by an electroless plating technique and then sintered to a solid sample by either spark plasma sintering (SPS) or hot pressing (HP). LÄS MER