X-ray diffraction on aged Brazilian wood species

Tiago Hendrigo de Almeida, Mauro R Sardela, Francisco Antonio Rocco Lahr

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish (US)
Pages (from-to)96-103
Number of pages8
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
StatePublished - Jul 2019


  • Crystallinity
  • Crystallite size
  • Weathering
  • Wood
  • X-ray diffraction

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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