Publications

  • Article in journal

    Heldin, Magnus; Wiklund, Urban

    Defibration mechanisms and energy consumption in the grinding zone – a lab scale equipment and method to evaluate groundwood pulping tools

    Part of Nordic Pulp & Paper Research Journal, 2019.

  • Doctoral thesis, comprehensive summary

    Heldin, Magnus

    Designing grinding tools to control and understand fibre release in groundwood pulping

    Open access
  • Article in journal

    Heldin, Magnus; Wiklund, Urban

    Evaluation of well-defined tool surface designs for groundwood pulping

    Part of BioResources, p. 9575-9587, 2019.

  • Article in journal

    Heldin, Magnus; Wiklund, Urban

    Influences of load and temperature on groundwood pulping with well-defined tools

    Part of Wear, 2019.

    Open access
  • Conference paper

    Heldin, Magnus; Carlsson, Jenny; Isaksson, Per; Wiklund, Urban

    On tool engagement in groundwood pulping - in-situ observations and numerical modelling at the microscale

    Part of The 11th Fundamental Mechanical Pulp Research Seminar, Norrköping, Sweden, April 2-4, 2019.

  • Conference paper

    Heldin, Magnus; Wiklund, Urban

    Influences of grinding surface alignment in groundwood pulping of Norway spruce

    Part of 18th Nordic Symposium on Tribology - NORDTRIB 2018, Uppsala, Sweden, June 18-21, 2018.

  • Conference paper

    Heldin, Magnus; Wiklund, Urban

    Tailored grinding surfaces for groundwood pulping - influencing wear mechanisms and energy requirements

    Part of 21st International Conference on Wear of Materials, Long Beach, March 26-30, 2017.

  • Article in journal

    Heldin, Magnus; Isaksson, Per; Wiklund, Urban

    Initiation of wood defibration in groundwood pulping, single asperity indentation and scratching

    Part of Nordic Pulp & Paper Research Journal, p. 401-406, 2016.

    Open access
  • Conference paper

    Heldin, Magnus; Wiklund, Urban

    Micrometre compressions to facilitate controlled wear in groundwood pulping

    Part of 17th Nordic Symposium on Tribology - Nordtrib, Hämeenlinna, Finland, 14-17 June, 2016.

  • Conference paper

    Heldin, Magnus; Wiklund, Urban

    A labscale test equipment ot study the tool surface influence in pressure groundwood pulping

    Part of 20th International Conference on Wear of Materials, Toronto, Canada, April 12-16, 2015.

  • Conference paper

    Heldin, Magnus; Wiklund, Urban

    Designed tools for controlling the defibration mechanisms in the pressure groundwood process

    Part of International Tribology Conference, Tokyo 2015, Tokyo, Japan, September 16-20, 2015.

  • Conference paper

    Heldin, Magnus; Wiklund, Urban; Isaksson, Per

    Initiation of wood defibration, tribology at the fiber level

    Part of Nordtrib, Aarhus, Denmark, June 10-13, 2014.

  • Conference paper

    Heldin, Magnus; Wiklund, Urban

    Scratch testing for mimicking the early stage of wood defibration

    Part of Asiatrib, Agra, India, February 17-20, 2014.

  • Manuscript (preprint)

    Heldin, Magnus; Wiklund, Urban

    Influence of alignment between extended tool ridges and the wood structure on the defibration mechanisms in groundwood pulping experiments

  • Article in journal

    Carlsson, Jenny; Heldin, Magnus; Isaksson, Per; Wiklund, Urban

    Investigating tool engagement in groundwood pulping: finite element modelling and in-situ observations at the microscale

    Part of Holzforschung