DIN EN ISO 21814:2023-02
Fine ceramics (advanced ceramics, advanced technical ceramics) - Methods for chemical analysis of aluminium nitride powders (ISO 21814:2019); German version EN ISO 21814:2022
| Fecha edición: |
2023-02-01
En Vigor
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| Idiomas disponibles: | Inglés, Alemán |
| Resumen: | This document specifies methods for the chemical analysis of fine aluminium nitride powders used as the raw material for fine ceramics. This document stipulates the determination methods of the aluminium, total nitrogen, boron, calcium, copper, iron, magnesium, manganese, molybdenum, nickel, potassium, silicon, sodium, titanium, tungsten, vanadium, zinc, zirconium, carbon, chlorine, fluorine, and oxygen contents in aluminium nitride powders. The aluminium content is determined by using either an acid pressure decomposition-CyDTA-zinc back titration method or an acid digestion-inductively coupled plasma-optical emission spectrometry (ICP-OES) method. The total nitrogen content is determined by using an acid pressure decomposition-distillation separation-acidimetric titration method, a direct decomposition-distillation separation-acidimetric titration method, or an inert gas fusion-thermal conductivity method. The boron, calcium, copper, iron, magnesium, manganese, molybdenum, nickel, potassium, silicon, sodium, titanium, tungsten, vanadium and zinc contents are determined by using an acid digestion-ICP-OES method or an acid pressure decomposition-ICP-OES method. The sodium and potassium contents are determined via an acid pressure decomposition-flame emission method or an acid pressure decomposition-atomic absorption spectrometry method. The oxygen content is determined by using an inert gas fusion-IR absorption spectrometry method, while that of carbon is determined via a combustion-IR absorption spectrometry method or a combustion-conductometry method. The chlorine and fluorine contents are determined by using a pyrohydrolysation method followed by ion chromatography or spectrophotometry. |
| Keywords: | Advanced materials|Advanced technical ceramics|Aluminium|Aluminium inorganic compounds|Boron|Calcium|Calibration|Carbon|Ceramic|Ceramic powders|Ceramics|Chlorine|Copper|Determination of content|Determination procedures|Fine ceramics|Fluorine|ICP|Inductively Coupled Plasma|Inert gases|Iron|Magnesium|Materials testing|Methods of analysis|Molybdenum|Nickel|Nitrides|Nitrogen|OES|Optical Emission Spectroscopy|Oxygen|Oxygen content|Particulate materials|Potassium|Powder|Silicon|Sodium|Specimen preparation|Strontium|Testing|Testing devices|Tungsten|Vanadium|X-ray fluorescence spectrometry|X-ray spectrometry|Zinc|Zirconium |
| ICS: | 81.060.30 - Cerámicas avanzadas |
| CTN: | |
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Equivalencia Internacional |
Idéntica EN ISO 21814:2022 Idéntica ISO 21814:2019 |
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Reemplazo Normas |
Reemplaza a DIN EN 725-4:2006-07 Reemplaza a DIN EN ISO 21814:2022-08 |
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