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ISO 21821:2019

Fine ceramics (advanced ceramics, advanced technical ceramics) — Determination of densification properties of ceramic powders on natural sintering
23. 10. 2019.

Опште информације

90.93     10. 3. 2025.

ISO

ISO/TC 206

Međunarodni standard

81.060.30  

engleski   francuski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

This document specifies the test method to determine the extent to which ceramic powder compacts made of granulated or ungranulated ceramic powders are densified, when they are sintered at a high temperature without the application of any external pressure or external densification force. The test method is applicable to pure oxides, mixtures of oxides and solid solutions, and is also applicable to non-oxides (e.g. carbides, nitrides) that can be sintered under vacuum or constant gas pressure (1 bar or less) to prevent oxidation or decomposition. The test method is not applicable to ceramics that can only be sintered using pressure-assisted sintering techniques such as hot pressing (HP), hot isostatic pressing (HIP), gas pressure sintering (GPS) or spark plasma sintering (SPS). Inorganic sintering additives can be used where their presence is reported.

Životni ciklus

TRENUTNO

OBJAVLJEN
ISO 21821:2019
90.93 Odluka o potvrđivanju standarda
10. 3. 2025.

Nacionalna preuzimanja

SRPS EN ISO 21821:2022  
ISS

Fina keramika (savremena keramika, savremena tehnička keramika) – Određivanje svojstava zgušnjavanja keramičkih prahova pri prirodnom sinterovanju

60.60   Standard objavljen

B184 Saznaj više