Application of Piezoelectric Composite-Bar Method to Elastic Modulus Measurement of Ceramics (Part 1)
Application of Piezoelectric Composite-Bar Method to Elastic Modulus Measurement of Ceramics (Part 1)
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压电复合棒法在陶瓷弹性模量测量中的应用（第1部分）
DOI：
10.2109/jcersj.98.653
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发表时间：
1990
影响因子：
1.1
通讯作者：
M. Ozawa
中科院分区：
文献类型：
--
作者：
S. Kudo;M. Ozawa
将压电复合棒法应用于陶瓷材料（氧化锆、氧化铝、氮化硅和碳化硅）弹性模量的测量。采用不同谐振频率的石英振子和润滑脂作为粘接剂，简化了测量过程。观察到试样的共振频率fs取决于振动器的共振频率fq。fs的值在fs=fq时最大。fs（fs 0）的最可能值是在fs=fq时得到的，并通过将fs与fq作图来确定。fs的实验误差由fs与fq（fs/fs 0与fq/fs 0）的曲线来评估，当fq与fs 0之间的差异为10%时，fs的实验误差小于0.1%。观察到Q-1的值在fq/fs 0 =1时最小。
The piezoelectric composite-bar method was applied to elastic modulus measurement of ceramics (zirconia, alumina, silicon nitride and silicon carbide). The procedure of measurement was simplified by using quartz vibrators with various resonant frequencies and grease as the adhesive. The resonant frequency fs of the specimen was observed to depend on the resonant frequency fq of the vibrator. The value of fs was maximum at fs=fq. The most probable value of fs (fs0) is obtained at fs=fq, and was determined by plotting fs against fq. The experimental error in fs was evaluated by the plot of fs vs. fq (fs/fs0 vs. fq/fs0) and was smaller than 0.1%, when the difference between fq and fs0 was 10%. The value of Q-1 was observed to be minimum at fq/fs0=1.