ISO - DIS 21068-4
Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon — Part 4: XRD methods
pending, Most Current
| Organization: | ISO |
| Publication Date: | 2 June 2023 |
| Status: | pending |
| Page Count: | 17 |
| ICS Code (Refractories): | 81.080 |
scope:
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 α-Si3N4, β-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.
Document History
DIS 21068-4
June 2, 2023
Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon — Part 4: XRD methods
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...