Effects of heat treatment in the presence of nitrogen gas on some mechanical properties of poplar wood

Abstract

In this study, the effects of heat treatment performed in the presence of nitrogen gas on some mechanical properties of poplar (Populus subsps.) wood were determined. Two different heat transfer media, nitrogen gas and air, were used as heat transfer media, and the effect of heat treatment on some mechanical properties was investigated. In this study, as a pre-treatment, the air in the wood cavities was removed by vacuum and nitrogen gas was transferred instead in a group. Then, heat treatment was applied and the effect of this pre-treatment was also determined. In laboratory experiments, mechanical properties such as static bending strength, modulus of elasticity in bending, impact bending were investigated. According to the data obtained; it was determined that heat treatment has an effect on the mechanical properties of poplar wood. While the bending strength and impact bending decreased after heat treatment, it was determined that the elastic modulus increased a little. It has been determined that the effect of heat treatment in the presence of nitrogen gas on mechanical properties is less than those performed in the presence of air.

Keywords

• heat treatment
• poplar wood
• nitrogen gas
• mechanical properties
• isıl işlem
• kavak odunu
• azot gazı
• mekanik özellikler