Review and statistical analysis of the ultrasonic velocity method for estimating the porosity fraction in polycrystalline materials / D.J. Roth [and others].
| Other author | Roth, Don J. |
| Other author | United States. National Aeronautics and Space Administration. |
| Format | Microform |
| Publication Info | [Washington, D.C.] : NASA ; [Springfield, Va.] : [For sale by the National Technical Information Service], [1990] |
| Description | 43 pages : illustrations. |
| Subjects |
| Series | NASA technical memorandum ; 102501 NASA technical memorandum 102501. ^A467613 |
| General note | Cover title. |
| General note | Shipping list no.: 90-0858-M. |
| General note | "March 1990." |
| General note | "E-5298"--P. [1]. |
| Bibliography note | Includes bibliographical references (p. 9-12). |
| Reproduction note | Joyner- Microfiche. [Washington, D.C.? : National Aeronautics and Space Administration, 1990]. 1 microfiche : negative. |
| Funding information | 506-43-11 |
| Technical rpt number | E-5298 |
| GPO item number | 0830-D (MF) |
| Govt. docs number | NAS 1.15:102501 |