Sökning: "Per Eklund"

Visar resultat 26 - 30 av 53 avhandlingar innehållade orden Per Eklund.

  1. 26. Growth and Heat Treatment Studies of Al-Cr-O and Al-Cr-O-N Thin Films

    Författare :Ali Khatibi; Lars Hultman; Per Eklund; Marcus Morstein; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Aluminum oxide based thin films are applied on cutting tool inserts as a top layer to protect the underlying nitride or carbide functional layer from the harsh working environment in terms of abrasive and chemical wear under thermal and pressure load. This Thesis explores the synthesis and characterization of the next generations of multifunctional wear-resistant thin film coatings in the form of Al-Cr-O and Al-Cr-O-N compounds. LÄS MER

  3. 27. A First-Principles Study of Highly Anharmonic and Dynamically Disordered Solids

    Författare :Johan Klarbring; Sergei Simak; Per Eklund; Claudine Katan; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis is a first-principles theoretical investigation of solid materials with high degrees of anharmonicity. These are systems where the dynamics of the constituent atoms is too complex to be well-described by a set of uncoupled harmonic oscillators. LÄS MER

  4. 28. Phase Formation of Nanolaminated Transition Metal Carbide Thin Films

    Författare :Chung-Chuan Lai; Johanna Rosén; Per Eklund; Lars Hultman; Miladin Radovic; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Research on inherently nanolaminated transition metal carbides is inspired by their unique properties combining metals and ceramics, such as higher damage tolerance, better machinability and lower brittleness compared to the binary counterparts, yet retaining the metallic conductivity. The interesting properties are related to their laminated structure, composed of transition-metalcarbide layers interleaved by non-transition-metal (carbide) layers. LÄS MER

  5. 29. Thin Film Synthesis of New Nanolaminated Ternary Carbides

    Författare :Chung-Chuan Lai; Johanna Rosén; Per Eklund; Ola Wilhelmsson; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Ternary transition metal carbides with inherently nanolaminated crystal structure are a class of materials with typically higher damage tolerance, better machinability and lower brittleness compared to the binary counterparts, yet retaining their satisfactory electrical and thermal conductivity. Their interesting properties can be related to the laminated structure. LÄS MER

  7. 30. Physical vapor deposition and thermal stability of hard oxide coatings

    Författare :Ludvig Landälv; Per Eklund; Emmanuelle Göthelid; Björn Alling; Marcus Morstein; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The state-of-the-art tools for machining metals are primarily based on a metal-ceramic composite (WC-Co) coated with different combinations of carbide, nitride, and oxide coatings. Combinations of these coating materials are optimized to withstand specific wear conditions. LÄS MER