Acoustic Properties of Solids(VI)
| Ref | Material | Vendor |
VL mm/s |
VS mm/s |
Þ g/cm3 |
ZL MRayl |
µ |
Loss dB/cm |
|---|
| M | Salt - NaCl, crystalline, X- direction | 4.78 | 2.17 | 10.37 | ||||
| PK | Sapphire (aluminum oxide) Z-axis | 11.1 | 6.04 | 3.99 | 44.3 | |||
| DP | Scotch tape - 0.0025'' thick | 3M | 1.9 | 1.16 | 2.08 | |||
| AS | Scotchcast XR5235, 38 pha B, rt cure | 3M | 2.48 | 1.49 | 3.70 | 3.8 @ 1.3 | ||
| Scotchply SP1002 (a laminate with fibers) | 3M | 3.25 | 1.94 | 6.24 | ||||
| Scotchply XP 241 | 3M | 2.84 | 0.65 | 1.84 | ||||
| AS | Silicon - very anisotropic, values are approx. | 8.43 | 5.84 | 2.34 | 19.7 | |||
| PK | Silicon carbide | 13.06 | 7.27 | 3.217 | 42.0 | |||
| PK | Silicon nitride | 11.0 | 6.25 | 3.27 | 36.0 | 0.26 | ||
| Silver | 3.6 | 1.6 | 10.6 | 38.0 | 0.38 | |||
| AS | Silver epoxy, e-solder 3022 | Acme | 1.9 | 0.98 | 2.71 | 5.14 | 0.32 | 16 @ 2 |
| AE | Slate | 4.5 | 3.0 | 13.5 | ||||
| Steel - mild | 5.9 | 3.2 | 7.80 | 46.0 | 0.29 | |||
| Steel - stainless 347, Zs = 24.5 MRayl | 5.79 | 3.10 | 7.89 | 45.7 | 0.30 | |||
| Stycast - 1264, rt cure | EC | 2.22 | 1.19 | 2.64 | ||||
| RLB | Stycast - 1264, 45pha, 600pha W, r6 | EC,C | 1.65 | 4.71 | 7.77 | 29.7 @ 5 | ||
| RLB | Stycast - 1264, 45pha, 800pha W, r6 | EC,C | 1.57 | 5.50 | 8.65 | 46.5 @ 5 | ||
| RLB | Stycast - 1264, 45pha, vac. impreg. W, rt | EC,C | 1.71 | 6.03 | 10.4 | 34.1 @ 5 | ||
| Stycast - 1267 | EC | 2.57 | 1.16 | 3.00 | 4.6 @ 3.0 | |||
| JA | Stycast - 1970, costs $109.00/lb | EC | 3.2 | 1.90 | 6.08 | |||
| AS | Stycast - 2651-40 9phr catalyst 9, rt cure | EC | 2.77 | 1.5 | 4.16 | |||
| AS | Stycast - 2651-40 9phr catalyst 9, 10phr SiC | EC,C | 2.88 | 1.57 | 4.53 | |||
| AS | Stycast - 2651-40 9phr catalyst 9, 20phr SiC | EC,C | 2.95 | 1.63 | 4.82 | |||
| AS | Stycast - 2651-40 9phr catalyst 9, 25phr SiC | EC,C | 2.90 | 1.50 | 1.67 | 4.83 | 0.32 | |
| Stycast - 2741, 1:1 | EC | 2.29 | 1.17 | 2.68 | ||||
| M | Sulphur - 9 isotropic forms exist, mp 112°C | 1.35 | 2.0 | 2.7 | ||||
| M | Tantalum - mp=2996°C, very inert, hard | C | 4.10 | 2.90 | 16.6 | 54.8 | ||
| AS | Tapox epoxy | Tap | 2.48 | 1.11 | 2.76 | |||
| AS | Techform EA700, brittle material | Tech | 2.63 | 1.20 | 3.14 | 4.6 @ 2, 5.2 @ 2.5 | ||
| Teflon | 1.39 | 2.14 | 2.97 | 3.9 @ 5 |