纳米压痕技术测量管胞次生壁S_2层的纵向弹性模量和硬度

doi:10.11707/j.1001-7488.20040220

Scientia Silvae Sinicae ›› 2004, Vol. 40 ›› Issue (2): 113-118.doi: 10.11707/j.1001-7488.20040220

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Using Nanoindentation Technique to Determine the Longitudinal Elastic Modulus and Hardness of Tracheids Secondary Wall

Jiang Zehui,Yu Yan,Fei Benhua,Ren Haiqing,Zhang Taihua

Research Institute of Wood Industry, CAF Beijing100091；State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences Beijing100080

Received:2002-08-26 Revised:1900-01-01 Online:2004-03-25 Published:2004-03-25

Abstract

Abstract:

The detailed experimental procedure of using nanoindentation technique to determine the longitudinal elastic modulus and nano hardness of tracheids secondary wall was emphasized, base on which the longitudinal mechanical properties of Chinese Fir tracheids were measured. It was indicated both hardness and elastic modulus of latewood secondary wall were higher than earlywood cell wall. The longitudinal elastic modulus and hardness of latewood tracheids S₂ layer were 14.844Gpa and 0.390Gpa respectively, while and earlywood cell wall S₂ layer had a corresponding value of 9.823 and 0.306Gpa.

Key words: Nanoindentation technique, Tracheids, Elastic modulus, Hardness

Jiang Zehui;Yu Yan;Fei Benhua;Ren Haiqing;Zhang Taihua. Using Nanoindentation Technique to Determine the Longitudinal Elastic Modulus and Hardness of Tracheids Secondary Wall[J]. Scientia Silvae Sinicae, 2004, 40(2): 113-118.

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Using Nanoindentation Technique to Determine the Longitudinal Elastic Modulus and Hardness of Tracheids Secondary Wall

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