Longitudinal hardness and Young's modulus of spruce tracheid secondary walls using nanoindentation technique

被引：0

作者：

Wimmer R. ^{[1
]}

Lucas B.H. ^{[2
]}

Tsui T.Y. ^{[3
]}

Oliver W.C. ^{[2
]}

机构：

[1] University of Agricultural Sciences, 1180 Vienna

[2] Nano Instruments, Inc., Knoxville, TN 37014

[3] Department of Materials Science, Rice University, Houston, TX 77251

来源：

Wood Science and Technology | 1997年 / 31卷 / 2期

关键词：

Mechanical Property; Cell Wall; Elastic Modulus; Mechanical Testing; High Spatial Resolution;

D O I：

10.1007/BF00705928

中图分类号：

学科分类号：

摘要：

Using a mechanical properties microprobe, measurements of hardness and elastic modulus of tracheid walls in the longitudinal direction of spruce wood were obtained by continuously measuring force and displacement as a diamond indenter impressed a cell wall. Maximum mechanical properties were found at the edges of the walls of angular shaped tracheids. Both the hardness and elastic modulus of latewood cell walls were higher than cell walk in the earlywood. The high spatial resolution of this new concept of mechanical testing allows a direct comparison with ultrastructural and microchemical parameters of lignified cells which opens a wider area of applications for the understanding of intrinsic wood properties.

引用

页码：131 / 141

页数：10

共 40 条

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