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ISO 21068-4:2024
Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon — Part 4: XRD methods
SKU: iso_083603_186759
Published by ISO
Publication Year 2024
1 Edition
11 pages
Product Details
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 a-Si3N4, ß-Si3N4, Si2ON2, AlN, and ß’- SiAlON are described.
For quantitative determination of a-Si3N4, ß-Si3N4, Si2ON2, AlN and ß’-SiAlON refinement procedures based on the total nitrogen content of the sample are described.
NOTE ISO 21068-3 is used for the analysis of the total nitrogen content of the sample.
It includes details of sample preparations and general principles for qualitative and quantitative analyses of mineralogical phase composition. Quantitative determination of a-Si3N4, ß-Si3N4, Si2ON2, AlN, and ß’- SiAlON are described.
For quantitative determination of a-Si3N4, ß-Si3N4, Si2ON2, AlN and ß’-SiAlON refinement procedures based on the total nitrogen content of the sample are described.
NOTE ISO 21068-3 is used for the analysis of the total nitrogen content of the sample.
