ISO 19628:2017
Fine ceramics (advanced ceramics, advanced technical ceramics) — Thermophysical properties of ceramic composites — Determination of specific heat capacity
ISO 19628:2017 describes two methods for the determination of the specific heat capacity of ceramic matrix composites with continuous reinforcements (1D, 2D, 3D).
Unidirectional (1D), bi-directional (2D) and tridirectional (XD, with 2 < x ≤ 3).
The two methods are:
- method A: drop calorimetry;
- method B: differential scanning calorimetry.
They are applicable from ambient temperature up to a maximum temperature, depending on the method: method A can be used up to 2 250 K, while method B is limited to 1 900 K.
NOTE Method A is limited to the determination of an average value of the specific heat capacity over a given temperature range and can give a larger spread of results.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Method A – drop calorimetry
4.1 Principle
4.2 Apparatus
4.3 Standard reference materials
4.4 Test specimens
4.5 Calibration of calorimeter
4.5.1 General
4.5.2 Electrical calibration
4.5.3 Calibration using standard reference material
4.6 Test procedures
4.6.1 Test without a crucible
4.6.2 Test with a crucible
4.6.3 Description of test
4.7 Calculations
4.7.1 General
4.7.2 Determination of the calorimetric calibration factor
4.7.3 Determination of mean specific heat capacity 
5 Method B – differential scanning calorimetry
5.1 Principle
5.1.1 General
5.1.2 Stepwise heating method
5.1.3 Continuous heating method
5.2 Apparatus
5.3 Standard reference materials, SRM
5.4 Test specimens
5.5 Temperature calibration
5.6 Test procedure for the determination of Cp
5.6.1 General
5.6.2 Method 1: Measurements requiring the knowledge of the K factor
5.6.3 Method 2: measurements requiring the use of a reference standard material (SRM)
5.7 Calculation of results
5.7.1 Method requiring the knowledge of the K factor
5.7.2 Method using an SRM
6 Test report
Annex A (normative) Drop calorimetry – determination of the calibration factor using standard reference material
Annex B (informative) Standard reference material
Annex C (informative) Materials for calorimeter calibrations
Bibliography
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Related Information
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BS 7134-0:1989
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Method A – drop calorimetry
4.1 Principle
4.2 Apparatus
4.3 Standard reference materials
4.4 Test specimens
4.5 Calibration of calorimeter
4.5.1 General
4.5.2 Electrical calibration
4.5.3 Calibration using standard reference material
4.6 Test procedures
4.6.1 Test without a crucible
4.6.2 Test with a crucible
4.6.3 Description of test
4.7 Calculations
4.7.1 General
4.7.2 Determination of the calorimetric calibration factor
4.7.3 Determination of mean specific heat capacity 
5 Method B – differential scanning calorimetry
5.1 Principle
5.1.1 General
5.1.2 Stepwise heating method
5.1.3 Continuous heating method
5.2 Apparatus
5.3 Standard reference materials, SRM
5.4 Test specimens
5.5 Temperature calibration
5.6 Test procedure for the determination of Cp
5.6.1 General
5.6.2 Method 1: Measurements requiring the knowledge of the K factor
5.6.3 Method 2: measurements requiring the use of a reference standard material (SRM)
5.7 Calculation of results
5.7.1 Method requiring the knowledge of the K factor
5.7.2 Method using an SRM
6 Test report
Annex A (normative) Drop calorimetry – determination of the calibration factor using standard reference material
Annex B (informative) Standard reference material
Annex C (informative) Materials for calorimeter calibrations
Bibliography