Characterization of heat treated wood species

Priadi, Trisna; Hızıroǧlu, Salim

doi:10.1016/j.matdes.2012.12.067

Cited by 95 publications

(71 citation statements)

References 16 publications

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“…Indeed, although zeen oak wood had the highest hardness value for control samples, its hardness reduction was also larger than for any other species considered in this work. Similar results have been found through previous studies (Priadia and Hiziroglub 2013). They found also that, in the oak wood, hardness is more degraded by the heat treatment intensity than in other wood species as mindi, mahogany and pine woods.…”

Section: Evaluation Of Mechanical Propertiessupporting

confidence: 91%

“…Extreme porous structure along with high extractive amount of oak would be considered for such findings. Additionally, SEM microscopic analyses (Priadia and Hiziroglub 2013) have shown that in the heat treated oak wood there are more cracks and distorted parts than in the heat treated pine. That observation can explain the higher oak wood hardness sensibility to thermal degradation compared to other species.…”

Section: Evaluation Of Mechanical Propertiesmentioning

confidence: 99%

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Utilization of temperature kinetics as a method to predict treatment intensity and corresponding treated wood quality: Durability and mechanical properties of thermally modified wood

Candelier

Hannouz

Elaieb

et al. 2015

Maderas, Cienc. tecnol.

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Wood heat treatment is an attractive alternative to improve decay resistance of wood species with low natural durability. However, this improvement of durability is realized at the expense of the mechanical resistance. Decay resistance and mechanical properties are strongly correlated to thermal degradation of wood cells wall components. Mass loss resulting from this degradation is a good indicator of treatment intensity and final treated wood properties. However, the introduction of a fast and accurate system for measuring this mass loss on an industrial scale is very difficult. Nowadays, many studies are conducted on the determination of control parameters which could be correlated with the treatment conditions and final heat treated wood quality such as decay resistance. The aim of this study is to investigate the relations between kinetics of temperature used during thermal treatment process representing heat treatment intensity, mass losses due to thermal degradation and conferred properties to heat treated wood. It might appear that relative area of treatment temperature curves is a good indicator of treatment intensity. Heat treatment with different treatment conditions (temperature-time) have been performed under vacuum, on four wood species (one hardwood and three softwoods) in order to obtain thermal degradation mass loses of 8, 10 and 12%. For each experiment, relative areas corresponding to temperature kinetics, mass loss, decay resistance and mechanical properties have been determined. Results highlight the statement that the temperature curves' area constitutes a good indicator in the prediction of needed treatment intensity, to obtain required wood durability and mechanical properties such as bending resistance and Brinell hardness.

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Section: Evaluation Of Mechanical Propertiessupporting

confidence: 91%

Section: Evaluation Of Mechanical Propertiesmentioning

confidence: 99%

Utilization of temperature kinetics as a method to predict treatment intensity and corresponding treated wood quality: Durability and mechanical properties of thermally modified wood

Candelier

Hannouz

Elaieb

et al. 2015

Maderas, Cienc. tecnol.

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show abstract

“…Even when the samples were exposed to a temperature of 160 °C for 7 h, the R a value only decreased to 7.17 µm from the 7.31 µm value of the control samples. Similar results were also determined with a previous study that evaluated the effects of heat treatment on the surface quality of pine, oak, and two tropical species, mindi and mahogany (Priadi and Hiziroglu 2013). Overall, the R a values of the samples decreased by 1.87% to 5.61% versus the control, which was not significant (Fig.…”

Section: Fig 1 Oven-dry Density Values Of the Specimenssupporting

confidence: 89%

“…The shear strength of the specimens would possibly have been influenced more negatively if the temperature were increased. The magnitude of the temperature showed less of an impact than did exposure time on the overall mechanical properties of wood, as found in previous studies (Mitchell 1988;Korkut and Hiziroglu 2009;Priadi and Hiziroglu 2013;Bakar et al 2013). Control samples had a 3.89 kN Janka hardness value.…”

Section: Fig 1 Oven-dry Density Values Of the Specimenssupporting

confidence: 79%

“…Hardness and surface roughness values of such specimens also decreased with increasing heat treatment temperature and exposure time. Priadi and Hiziroglu (2013) examined similar property changes with heattreated oak, pine, and some tropical species, including mahogany and mindi. In their study, it was found that the dimensional stability of such species improved as a result of heat treatment (Priadi and Hiziroglu 2013).…”

Section: Introductionmentioning

confidence: 99%

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Selected Properties of Heat-Treated Eastern Red Cedar (Juniperus virginiana L.) Wood

Korkut¹,

Hızıroǧlu²

2013

BioResources

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The objective of this study was to evaluate the effect of heat treatment on properties including oven-dry density, weight loss, surface roughness, shear strength, and hardness of eastern red cedar (Juniperus virginiana L.). The anatomical structures of samples were also examined by scanning electron microscope (SEM). Two different heat treatment schedules, with temperatures of 130°C and 160°C and 3 and 7 h exposure times, were considered for the experiment. A stylus method was employed to evaluate the surface properties of heat-treated samples. Three roughness parameters, average roughness (R a ), mean peak-to-valley height (R z ), and maximum roughness (R max ), were determined from the surface of specimens and used to evaluate the effect of heat treatment on the surface properties. The shear strength of samples bonded with polyvinyl acetate (PVAc) adhesive was also measured. All properties of the samples exposed to different heat treatment schedules were significantly different (p = 0.05) from each other. The results of this study demonstrated that the oven-dry density, surface roughness, shear strength, and hardness of the samples decreased, while their weight loss increased slightly, with increasing heat treatment temperature and time.

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Recent Progress on Wear‐Resistant Materials: Designs, Properties, and Applications

et al. 2021

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There has been tremendous interest in the development of different innovative wear‐resistant materials, which can help to reduce energy losses resulted from friction and wear by ≈40% over the next 10–15 years. This paper provides a comprehensive review of the recent progress on designs, properties, and applications of wear‐resistant materials, starting with an introduction of various advanced technologies for the fabrication of wear‐resistant materials and anti‐wear structures with their wear mechanisms. Typical strategies of surface engineering and matrix strengthening for the development of wear‐resistant materials are then analyzed, focusing on the development of coatings, surface texturing, surface hardening, architecture, and the exploration of matrix compositions, microstructures, and reinforcements. Afterward, the relationship between the wear resistance of a material and its intrinsic properties including hardness, stiffness, strength, and cyclic plasticity is discussed with underlying mechanisms, such as the lattice distortion effect, bonding strength effect, grain size effect, precipitation effect, grain boundary effect, dislocation or twinning effect. A wide range of fundamental applications, specifically in aerospace components, automobile parts, wind turbines, micro‐/nano‐electromechanical systems, atomic force microscopes, and biomedical devices are highlighted. This review is concluded with prospects on challenges and future directions in this critical field.

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Characterization of heat treated wood species

Cited by 95 publications

References 16 publications

Utilization of temperature kinetics as a method to predict treatment intensity and corresponding treated wood quality: Durability and mechanical properties of thermally modified wood

Utilization of temperature kinetics as a method to predict treatment intensity and corresponding treated wood quality: Durability and mechanical properties of thermally modified wood

Selected Properties of Heat-Treated Eastern Red Cedar (Juniperus virginiana L.) Wood

Recent Progress on Wear‐Resistant Materials: Designs, Properties, and Applications

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