BS ISO 18754:2020
$102.76
Fine ceramics (advanced ceramics, advanced technical ceramics). Determination of density and apparent porosity
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 18 |
This document specifies methods for the determination of the apparent solid density, bulk density, apparent porosity and geometric bulk density of fine ceramics, including all ceramic matrix composites.
Two methods are described and are designated as Methods A and B, as follows:
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Method A: Determination of bulk density, apparent solid density and apparent porosity by liquid displacement (Archimedes’ method).
This method is not appropriate for the determination of an apparent porosity greater than 10 %. For materials with higher porosity, the accuracy of the measurement might not be satisfactory. This method might also not give a satisfactory open porosity result if it is less than 0,5 %.
This method is also not suitable for materials which are known to have an average pore size of greater than 600 µm.
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Method B: Determination of bulk density only, by measurement of geometric dimensions and mass.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 8 | 4 Method by liquid displacement (Method A) 4.1 Principle 4.2 Apparatus |
| 9 | 4.3 Test pieces 4.3.1 General requirements 4.3.2 Specific requirements for ceramic matrix composites |
| 10 | 4.4 Procedure 4.4.1 Determination of the mass of the dried test piece 4.4.2 Impregnation of the test piece with the immersion liquid 4.4.3 Determination of the apparent mass of the test piece |
| 11 | 4.4.4 Determination of the mass of the soaked test piece 4.4.5 Determination of the density of the immersion liquid 4.5 Accuracy of mass measurement 4.6 Expression of results 4.6.1 Apparent solid density |
| 12 | 4.6.2 Bulk density 4.6.3 Apparent porosity 5 Method by measurement of dimensions and mass (Method B) 5.1 Principle 5.2 Apparatus |
| 13 | 5.3 Test pieces 5.3.1 General requirements 5.3.2 Specific requirements for ceramic matrix composites |
| 14 | 5.4 Procedure 5.4.1 Determination of the mass of the dried test pieces 5.4.2 Determination of the dimensions of the dried test pieces 5.5 Expression of results 6 Test report |
| 16 | Bibliography |
