This document describes methods for the determination of mineralogical phases typically apparent in nitride and oxy-nitride bonded silicon carbide refractory products using a Bragg-Brentano diffractometer.
It includes details of sample preparations and general principles for qualitative and quantitative analyses of mineralogical phase composition. Quantitative determination of -Si3N4, -Si3N4, Si2ON2, AlN, and Â’-Â SiAlON are described.
For quantitative determination of -Si3N4, -Si3N4, Si2ON2, AlN and Â’-SiAlON refinement procedures based on the total nitrogen content of the sample are described.
NOTEÂ Â Â Â Â Â Â Â Â Â Â ISO 21068-3 is used for the analysis of the total nitrogen content of the sample.
| SDO | ISO: International Organization for Standardization |
| Document Number | ISO 21068 |
| Publication Date | Jan. 1, 2024 |
| Language | en - English |
| Page Count | 18 |
| Revision Level | |
| Supercedes | |
| Committee | ISO/TC 33 |
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