| Presentation | 2000/9/11 Acoustic properties of standard specimens for the line-focus-beam ultrasonic material characterization system : synthetic silica grasses Ryoichi Okabe, Mototaka Arakawa, Jun-ichi Kushibiki, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Bulk acoustic properties of four kinds of synthetic silica glass specimens as standard specimens to calibrate the line-focus-beam ultrasonic material characterization(LEB-UMC)system are measured with high accuracy around 23℃. All the specimens with highly elastic homogeneity are made by the direct method through the hydrolysis of ultra-high-purity SiCl_4 in an oxygen-hydrogen flame. Accurate values of the acoustic properties of longitudinal and shear velocities, and densities are obtained, although the effective figures are dominated mainly by the measurement accuracy of the specimen thickness. Some significant differences in the acoustic properties and the thermal coefficients of both longitudinal and shear velocities among the specimens are detected. The difference might be due to different amounts of impurities such as hydroxyl and chlorine ions incorporated and some differences in thermal history during the producation process. And, it is shown that the LFB-UMC system is calibrated with higher accuracy for the leaky surface acoustic wave propagation characteristics of the synthetic silica glass specimens. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | line-focus-beam ultrasonic material characterization system / system calibration / standard specimens / synthetic silica glass / bulk acoustic properties / leaky surface acoustic wave |
| Paper # | US2000-44 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 2000/9/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Acoustic properties of standard specimens for the line-focus-beam ultrasonic material characterization system : synthetic silica grasses |
| Sub Title (in English) | |
| Keyword(1) | line-focus-beam ultrasonic material characterization system |
| Keyword(2) | system calibration |
| Keyword(3) | standard specimens |
| Keyword(4) | synthetic silica glass |
| Keyword(5) | bulk acoustic properties |
| Keyword(6) | leaky surface acoustic wave |
| 1st Author's Name | Ryoichi Okabe |
| 1st Author's Affiliation | Graduate School of Engineering, Tohoku University() |
| 2nd Author's Name | Mototaka Arakawa |
| 2nd Author's Affiliation | Graduate School of Engineering, Tohoku University |
| 3rd Author's Name | Jun-ichi Kushibiki |
| 3rd Author's Affiliation | Graduate School of Engineering, Tohoku University |
| Date | 2000/9/11 |
| Paper # | US2000-44 |
| Volume (vol) | vol.100 |
| Number (no) | 290 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |