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Gewählte Doctoral Thesis:

Laura Oltean (2010): Impact of klin drying and UV-radiation on specific quality properties of solid wood.
Doctoral Thesis - Institut für Holzforschung (IHF), BOKU-Universität für Bodenkultur, pp 118. UB BOKU obvsg

Data Source: ZID Abstracts
Abstract:
This work provides a scientific basis for the drying process of solid wood concerning the influence of the drying temperature on specific mechanical properties. An up-to-date literature review has been done, concerning the occurrence and development of cracks during the kiln drying process and the influence of cracks on the mechanical properties of solid wood. Experimental work has been undertaken on the influence of specific kiln drying temperatures on the mechanical properties of Norway spruce wood, which provides new knowledge for industrial applications. The wood surface discolouration of the most significant European wood species, including different softwood and hardwood species, due to the exposure to simulated indoor sunlight irradiation was investigated. An insight on the different colour behaviour of these wood species and how they relate to each other is now given. At the end of the exposure time of 120 hours of simulated indoor sunlight exposure, a survey was undertaken, in which fifteen observers have been asked to classify the wood surface discolouration of sixteen wood species. A correspondence between the measured values of the wooden discolouration and how the human eye perceives the colour changes is also presented. In average, the measured colour changes fit well with the human visual inspection of the wooden surfaces, for most of the wooden species investigated.

Betreuer: Teischinger Alfred

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