摘要
在22℃时,采用脉冲法测定了生漆的超声波传播速度为1550m/s,衰减系数分别为6.3dB/cm。同时测定了桐油、机油和水的超声波速度。并把桐油、机油、水分别按不同的比例与生漆混合,测其超声波传播速度的变化。结果为不同物质按相同比例混入生漆中其声速不同,同一种物质按不同的此例与生漆混合其声速也不相同。
The velocity of ultrasonic of lacquer is determined to be 1550m/c by the way of pluse and the attenuation coefficient of ultrasonic is determined to be 6.3dB/cm at temperature 22℃. So did tung oil, machine oil and Water. Lacquer is mixed with each of tung oil, machine oil and water separately in different proportion to be determined their changements of the velocity of ultrasonic. The result is that the velocity of ultrasonic of the mixers are different whendifferent sudstance is mixed mith lacquer in same proportion and that the velocity of ultrasonic of the mixers are different when one substace is mixed with lacquer in different proportion.
出处
《中国生漆》
1990年第4期16-18,共3页
Journal of Chinese Lacquer
