TY - JOUR
T1 - X-ray diffraction on aged Brazilian wood species
AU - Almeida, Tiago Hendrigo de
AU - Sardela, Mauro R
AU - Lahr, Francisco Antonio Rocco
N1 - Funding Information:
Authors thank to CAPES for financial support (Financial code – 001); Wood and Timber Structures Laboratory (LaMEM), of the Department of Structural Engineering (SET), Engineering School of Sao Carlos Engineering School (EESC), University of Sao Paulo (USP); and Frederick Seitz Materials Research Laboratory (MRL) of the University of Illinois at Urbana-Champaign (UIUC).
Funding Information:
Authors thank to CAPES for financial support (Financial code – 001); Wood and Timber Structures Laboratory ( LaMEM ), of the Department of Structural Engineering ( SET ), Engineering School of Sao Carlos Engineering School ( EESC ), University of Sao Paulo ( USP ); and Frederick Seitz Materials Research Laboratory (MRL) of the University of Illinois at Urbana-Champaign (UIUC).
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/7
Y1 - 2019/7
N2 - Characterization of wood is important for best performances. X-ray diffraction (XRD) is a non-destructive technique that has been used for determination of crystallinity and crystallite size of isolated cellulose samples and samples of wood under some treatment. Determining weathering effects on material properties is important for their outdoor uses, mainly exposed to ultraviolet radiation. This paper aims to evaluate changes in crystallinity and crystallite size of Brazilian wood, covering all Brazilian code strength classes (ABNT NBR 7190:1997), exposed to artificial and natural weathering. In this context, XRD is considered a new, fast and non-destructive alternative to improve the wood characterization. Results showed no significant changes of wood for artificial aging. On the other hand, natural aging presented increase of crystallinity and crystallite size of 9.16% and 9.93%, respectively, in 360 days of exposure. According to our results, it is possible to conclude that XRD is effective in evaluating wood microstructure.
AB - Characterization of wood is important for best performances. X-ray diffraction (XRD) is a non-destructive technique that has been used for determination of crystallinity and crystallite size of isolated cellulose samples and samples of wood under some treatment. Determining weathering effects on material properties is important for their outdoor uses, mainly exposed to ultraviolet radiation. This paper aims to evaluate changes in crystallinity and crystallite size of Brazilian wood, covering all Brazilian code strength classes (ABNT NBR 7190:1997), exposed to artificial and natural weathering. In this context, XRD is considered a new, fast and non-destructive alternative to improve the wood characterization. Results showed no significant changes of wood for artificial aging. On the other hand, natural aging presented increase of crystallinity and crystallite size of 9.16% and 9.93%, respectively, in 360 days of exposure. According to our results, it is possible to conclude that XRD is effective in evaluating wood microstructure.
KW - Crystallinity
KW - Crystallite size
KW - Weathering
KW - Wood
KW - X-ray diffraction
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U2 - 10.1016/j.mseb.2019.05.028
DO - 10.1016/j.mseb.2019.05.028
M3 - Article
AN - SCOPUS:85067169727
SN - 0921-5107
VL - 246
SP - 96
EP - 103
JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
ER -