In this paper, Pinus sylvestris L. var. mongholica Litv veneer was used as the research object, and nanoZnO-coated veneer was prepared by magnetron sputtering. Based on XRD and nanoindenter, energy-dispersive spectroscopy and fluorescence microscope, the structure and mechanical properties, surface elements and fluorescence effect of the materials were characterized, and the gradual process of the structure and mechanical properties of nanoZnO-coated veneer was explored. The deposition of ZnO film on the surface of wood caused the main diffraction peaks (101) and (002) of cellulose to decrease in intensity, and the reduction in (002) characteristic peaks exceeded 10%. With the increase in the coating time, the characteristic diffraction peaks of ZnO gradually appeared. For the sample with a sputtering time of 75 min (200 °C), the film growth has a high degree of C-axis preferred orientation. The prepared nanoZnO-coated veneers have the common structural characteristics of wood and ZnO. With the increase in coating time, the load displacement of the sample sustained to decrease, the elastic modulus and hardness gradually increased. Among them, the sample with a coating time of 75 min (200 °C) reduced the loading displacement by 50%, the elastic modulus and hardness increased by 4.45 times and 5.8 times, respectively. It can be seen that the deposition of ZnO thin film on the surface of wood by magnetron sputtering has changed the microstructure of the wood surface, enhanced the wood resistance to elastic deformation, and improved the mechanical properties of the wood surface.

中文翻译：

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纳米ZnO涂层单板结构与力学性能的渐变过程研究

在本文中，Pinus sylvestris L. var. 以mongholica Litv单板为研究对象，采用磁控溅射法制备纳米ZnO涂层单板。基于XRD和纳米压痕仪、能量色散光谱仪和荧光显微镜，对材料的结构和力学性能、表面元素和荧光效应进行了表征，探索了纳米ZnO涂层单板的结构和力学性能的渐进过程。ZnO薄膜在木材表面的沉积导致纤维素的主要衍射峰（101）和（002）强度降低，（002）特征峰的降低超过10%。随着涂覆时间的增加，ZnO的特征衍射峰逐渐出现。对于溅射时间为 75 分钟（200 °C）的样品，薄膜生长具有高度的C轴择优取向。制备的纳米ZnO涂层单板具有木材和ZnO的共同结构特征。随着涂覆时间的增加，试样的载荷位移持续减小，弹性模量和硬度逐渐增大。其中，涂覆时间为75 min（200℃）的样品使加载位移减少了50%，弹性模量和硬度分别增加了4.45倍和5.8倍。可见磁控溅射在木材表面沉积ZnO薄膜，改变了木材表面的微观结构，增强了木材对弹性变形的抵抗力，改善了木材表面的力学性能。制备的纳米ZnO涂层单板具有木材和ZnO的共同结构特征。随着涂覆时间的增加，试样的载荷位移持续减小，弹性模量和硬度逐渐增大。其中，涂覆时间为75 min（200℃）的样品使加载位移减少了50%，弹性模量和硬度分别增加了4.45倍和5.8倍。可见磁控溅射在木材表面沉积ZnO薄膜，改变了木材表面的微观结构，增强了木材对弹性变形的抵抗力，改善了木材表面的力学性能。制备的纳米ZnO涂层单板具有木材和ZnO的共同结构特征。随着涂覆时间的增加，试样的载荷位移持续减小，弹性模量和硬度逐渐增大。其中，涂覆时间为75 min（200℃）的样品使加载位移减少了50%，弹性模量和硬度分别增加了4.45倍和5.8倍。可见，磁控溅射在木材表面沉积ZnO薄膜，改变了木材表面的微观结构，增强了木材对弹性变形的抵抗力，改善了木材表面的力学性能。弹性模量和硬度逐渐增加。其中，涂覆时间为75 min（200℃）的样品使加载位移减少了50%，弹性模量和硬度分别增加了4.45倍和5.8倍。可见磁控溅射在木材表面沉积ZnO薄膜，改变了木材表面的微观结构，增强了木材对弹性变形的抵抗力，改善了木材表面的力学性能。弹性模量和硬度逐渐增加。其中，涂覆时间为75 min（200℃）的样品使加载位移减少了50%，弹性模量和硬度分别增加了4.45倍和5.8倍。可见磁控溅射在木材表面沉积ZnO薄膜，改变了木材表面的微观结构，增强了木材对弹性变形的抵抗力，改善了木材表面的力学性能。