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Title of Journal: Wood Sci Technol

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Abbravation: Wood Science and Technology

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Springer-Verlag

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DOI

10.1002/malq.19840300102

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1432-5225

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Density profile relation to hardness of viscoelast

Authors: Lauri Rautkari Frederick A Kamke Mark Hughes
Publish Date: 2011/01/13
Volume: 45, Issue: 4, Pages: 693-705
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Abstract

Density profile relation to hardness of VTC wood composites was evaluated using Xray densitometry and modified Brinell hardness method using different applied forces Moreover surface elasticity was evaluated Prior to lamination the lowdensity hybrid poplar Populus deltoides × Populus trichocarpa L and Douglasfir Pseudotsuga menziesii L thin boards were compressed to 122 or 114 g/cm3 respectively Two different kinds of laminations were made either single layer of 15 mm thickness or two 15mm layers bonded to unmodified wood The results show that thicker laminate has a great positive influence on Brinell hardness This study suggests that results from the existing method for Brinell hardness are not comparable and if applied force is chosen without restraint the effect on the hardness value is significant for inhomogeneous wood composites

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Other Papers In This Journal:
  1. Fourier transform infrared analyses of bog and modern oak wood ( Quercus petraea ) extractives
  2. Duration-of-load and creep effects in strand-based wood composite: experimental research
  3. Determination of the mechanical properties of Castanea sativa Mill. using ultrasonic wave propagation and comparison with static compression and bending methods
  4. Monoethanolamine extraction of copper-preservative-treated wood and reuse of the extract for wood preservation
  5. Modelling the mortality of Hylotrupes bajulus (L.) larvae exposed to anoxic treatment for disinfestation of wooden art objects
  6. Characteristic fragment ions from lignin and polysaccharides in ToF–SIMS
  7. A three-dimensional wood material model to simulate the behavior of wood with any type of knot at the macro-scale
  8. Acoustic emission analysis of industrial plywood materials exposed to destructive tensile load
  9. Sorption of copper and lead by citric acid modified wood
  10. Electromagnetic shielding wood-based composite from electroless plating corrosion-resistant Ni–Cu–P coatings on Fraxinus mandshurica veneer
  11. The suitable harvesting season and the part of moso bamboo ( Phyllostachys pubescens ) for producing binderless boards
  12. Detection of chlorine-labelled chitosan in Scots pine by energy-dispersive X-ray spectroscopy
  13. Dynamic crushing characteristics of spruce wood under large deformations
  14. Influence of plum gum and sodium perborate addition on spruce kraft pulp properties during oxygen delignification
  15. Continuum contraction of tension wood fiber induced by repetitive hygrothermal treatment
  16. Effect of heat treatment on extracellular enzymatic activities involved in beech wood degradation by Trametes versicolor
  17. Digital radiography (DR) and imaging analysis for evaluating the penetration and distribution of organic substances used in wood conservation
  18. Longitudinal shrinkage behaviour of compression wood in radiata pine
  19. Nanoindentation of juvenile and mature loblolly pine ( Pinus taeda L.) wood fibers as affected by thermomechanical refining pressure
  20. Nanoindentation of juvenile and mature loblolly pine ( Pinus taeda L.) wood fibers as affected by thermomechanical refining pressure
  21. Influence of combined hydro-thermal treatments on selected properties of Turkey oak ( Quercus cerris L.) wood
  22. Resistance of Scots pine ( Pinus sylvestris L.) wood modified with functionalized commercial silicone emulsions against subterranean termites
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