This standard 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 preparation and general principles for qualitative and quantitative analysis of mineralogical phase composition. Quantitative determination of -Si3N4, -Si3N4, Si2ON2, AlN, and SiAlON are described. NOTE For the refinement procedures the total nitrogen content, analysed in accordance with ISO 21068-3 is needed.
Status: Under developmentYou can help develop this draft international standard by contacting your national member
Edition: 1Number of pages: 11
Technical Committee: ISO/TC 33 Refractories
- ICS :
- 81.080 Refractories
This standard contributes to the following Sustainable Development Goal:
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|std 1 61|
|std 2 61||Paper|
ISO/DIS 21068-4Stage: 40.20
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