Density profile relation to hardness of viscoelastic thermal compressed (VTC) wood composite

Wood Science and Technology

Volumn 45, Issue 4, 2011, Pages 693-705

  Rautkari, Lauri ^a   Kamke, Frederick A ^b   Hughes, Mark ^a  

^a AALTO UNIVERSITY   (Finland)

^b OREGON STATE UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

APPLIED FORCES; BRINELL HARDNESS; DENSITY PROFILE; DOUGLAS FIR; HARDNESS VALUES; HYBRID POPLAR; POPULUS; POPULUS DELTOIDES; PSEUDOTSUGA MENZIESII; SINGLE LAYER; SURFACE ELASTICITIES; WOOD COMPOSITES; X RAY DENSITOMETRY;

COMPOSITE MATERIALS; ELASTICITY; LAMINATING; WOOD PRODUCTS;

HARDNESS;

COMPOSITES; DENSITY MEASUREMENT; ELASTICITY; HARDNESS; LAMINATION; WOOD PRODUCTS;

POPULUS DELTOIDES; POPULUS TRICHOCARPA; PSEUDOTSUGA; PSEUDOTSUGA MENZIESII;

EID: 84655164911     PISSN: 00437719     EISSN: None     Source Type: Journal    
DOI: 10.1007/s00226-010-0400-0     Document Type: Article

References (35)

1. American Society of Testing Materials (ASTM) (1997) Standard test methods for small clear specimens of timber. ASTM D 143. Annual book of ASTM standards, vol 4.10. Philadelphia, PA, US.A.
2. Bektas I, Alma H, As N (2001) Determination of the relationships between Brinell and Janka hardness of Eastern beech (Fagus orientalis Lipsky). For Prod J 51(11/12):84-88 (Pubitemid 34035778)
3. Blomberg J, Persson B, Bexell U (2006) Effects of semi-isostatic densification on anatomy and cell-shape recovery on soaking. Holzforschung 60:322-331
4. EN 1534 (2000) Wood and parquet flooring-determination of resistance to indentation (Brinell)-test method. CEN-European Committee for Standardization, Brussels
5. EN ISO 6506-1 (2005) Metallic materials-Brinell hardness test-part 1: Test method (ISO 6506-1:2005) CEN, European Committee for Standardization, Brussels
6. Grossman PUA (1976) Requirements for a model that exhibits mechano-sorptive behaviour. Wood Sci Technol 10:163-168
7. Hirata S, Ohta M, Honma Y (2001) Hardness distribution on wood surface. J Wood Sci 47:1-7
8. Holmberg H (2000) Influence of grain angle on Brinell hardness of Scots pine. (Pinus sylvestris L.). Holz Roh Werkst 58:91-95
9. Inoue M, Norimoto M, Otsuka Y, Yamada T (1990) Surface compression of coniferous wood lumber I. Mokuzai Gakkaishi 36(11):969-975
10. ISO 3350 (1975) Wood-determination of static hardness. International Organisation for Standardization
11. Ito Y, Tanahashi M, Shigematsu M, Shinoda Y, Ohta C (1998) Compressive-molding of wood by highpressure steam-treatment: Part 1. Development of compressively molded squares from thinnings. Holzforschung 52:211-216 (Pubitemid 128561941)
12. JIS Z 2101 (1994) Methods of test for woods. Japanese Industrial Standard
13. JIS Z 2101 (1994) Methods of test for woods. Japanese Industrial Standard Kamke FA (2006) Densified radiata pine for structural composites. Maderas Cienc Technol 8(2):83-92 (Pubitemid 44286737)
14. Kamke FA, Rautkari L (2009) Modified wood veneer for structural applications. In: Proceedings of the 4th international symposium on Veneer processing and products, Espoo, Finland
15. Kamke FA, Sizemore H (2008) Viscoelastic thermal compression of wood. US Patent No. US7404422B2
16. Kellog RM, Wangaard FF (1969) Variation in the cell-wall density of wood. Wood Fiber Sci 1(3):180-204
17. Kontinen P, Nyman C (1977) Hardness of wood-based panel products and their coatings and overlays. Paper Timber 9:531-545 (in Finnish with English summary)
18. Kutnar A, Sernek M (2007) Densification of wood. Zbornik gozd les 82:53-62
19. Kutnar A, Kamke FA, Sernek M (2008) The mechanical properties of densified VTC wood relevant for structural composites. Holz Roh Werkst 66(6):439-446
20. Kutnar A, Kamke FA, Sernek M (2009) Density profile and morphology of viscoelastic thermal compressed wood. Wood Sci Technol 43:57-68
21. Lamason C, Gong M (2007) Optimization of pressing parameters for mechanically surface-densified aspen. For Prod J 57(10):64-68 (Pubitemid 350150106)
22. Navi P, Girardet F (2000) Effects of thermo-hydro mechanical treatment on the structure and properties of wood. Holzforschung 54:287-293 (Pubitemid 34044059)
23. Navi P, Heger F (2004) Combined densification and thermo-hydro-mechanical processing of wood. MRS Bull 29(5):332-336
24. Navi P, Pittet V, Plummer CVG (2002) Transient moisture effects on wood creep. Wood Sci Technol 36:447-462
25. Niemz P, Stübi T (2000) Investigations of hardness measurements on wood based materials using a new universal measurement system. In: Proceedings of the symposium on wood machining, properties of wood and wood composites related to wood machining, Vienna, Austria
26. Pizzi A, Leban J-M, Zanetti M, Pichelin F, Wieland S, Properzi M (2005) Surface finishes by mechanically induced wood surface fusion. Holz Roh Werkst 63:251-255 (Pubitemid 41451088)
27. Rautkari L, Hughes M (2009) Eliminating set-recovery in densified wood using a steam heat-treatment process. In: Proceedings of the 4th European conference on wood modification, Stockholm, Sweden
28. Rautkari L, Properzi M, Pichelin F, Hughes M (2008) An innovative thermo densification method for wooden surfaces. In: Proceedings of the 10th world conference on timber engineering, Miyazaki, Japan
29. Rautkari L, Properzi M, Pichelin F, Hughes M (2009) Surface modification of wood using friction. Wood Sci Technol 43:291-299
30. Rautkari L, Kamke FA, Hughes M (2010a) Potential error in density profile measurements for wood composites. Eur J Wood Prod. doi:10.1007/s00107-010-0419- 9
31. Rautkari L, Properzi M, Pichelin F, Hughes M (2010b) Properties and set-recovery of surface densified Norway spruce and European beech. Wood Sci Technol 44:679-691
32. Schwab E (1990) Die Härte von Laubhölzern fü r die Parkettherstellung. Holz Roh Werkst 48:47-51
33. Tarkow H, Seborg R (1968) Surface densificaton of wood. For Prod J 18(9):104-107
34. Tze WTY, Wang S, Rials TG, Pharr GM, Kelley SS (2007) Nanoindentation of wood cell walls: Continuous stiffness and hardness measurements. Compos A Appl Sci 38(3):945-953 (Pubitemid 44909019)
35. Wilfong JG (1966) Specific gravity of wood substance. For Prod J 16(1):55-61