本研究選取石英單晶、瑪瑙、石英岩、四稜砂岩、石英脈及二氧化矽玻璃等材料，在室溫室壓下進行超聲波實驗，藉以瞭解影響石英超聲波波速之因素以及其物理性質參數。
實驗結果顯示，石英在原子密集度越高、結構越簡單的情況下，超聲波傳遞的速度會越快；量測樣本內的裂隙越多(如石英脈)，超聲波的回波越容易散射而不易被偵測到。在石英單晶中，由於原子排列方式的影響，平行c軸方向的波速快於垂直c軸方向，且石英單晶的速度分布較其他實驗材料集中；橫波分裂作用在單晶中特別明顯，使得單晶的速度異向性比多晶強，快慢橫波的差異性更大。顯示除了原子排列方式，超聲波的偏振方向亦會影響速度的進行。此外，夾雜有其他礦物成分的四稜砂岩因受其他因素影響(如膠結鬆散)，使得超聲波速度較不受顆粒大小影響而低於其他材料。而瑪瑙受到纖維排列的影響，垂直於瑪瑙帶狀組織方向的波速快於平行帶狀組織方向的波速。
由體彈模量 與剪切模量 計算結果得知，受應力作用的石英脈在抗壓能力方面高於石英單晶與其他樣品；抗剪能力則以石英單晶較好。

Ultrasonic wave velocities in several types of quartz sample, including single crystal of quartz, agate, SiO2 glass, quartzite, and quartz veins were measured in this study in order to establish the relationship between the ultrasonic wave velocities and their structural and substructural parameters.
The present results show that the velocities are highly dependent upon the crystallographic orientation and the crystal defect substructures of quartz. The velocities along the c-axis of the quartz single crystal are faster than those along the a-axis. In the agate samples, the velocities measured parallel to the banding direction are slower than those along the radial direction. In addition, the velocities of P-wave and S-wave increase as the crystal size and compactness of the sample increase. The occurrence of the crystal defects such as cracks in quartz tend to produce the branching effect to the ultrasonic waves and thus make the echo of ultrasonic wave undetected, which in turn causes their velocities difficult to be measured.
The bulk moduli and shear moduli of quartz, as calculated with the measured velocities, suggest that the quartz veins are better than other samples in the resistance from applied pressure (higher bulk moduli), and single crystal is the best sample to resist distortion (higher shear moduli).

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