Skip to main content
Tagasi

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

Üldinfo

Kehtiv alates 10.06.2024
Tegevusala (ICS grupid)
81.080 Tulekindlad materjalid
Direktiivid või määrused
puuduvad

Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
10.06.2024
Põhitekst
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 α-Si3N4, β-Si3N4, Si2ON2, AlN, and β’- SiAlON are described.
For quantitative determination of α-Si3N4, β-Si3N4, Si2ON2, AlN and β’-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.

Nõutud väljad on tähistatud *

*
*
*
PDF
82,61 € koos KM-ga
Paber
82,61 € koos KM-ga
Standardi monitooring