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ISO 16793:2018

Nuclear fuel technology — Guidelines for ceramographic preparation of UO2 sintered pellets for microstructure examination
31. 7. 2018.

Опште информације

90.93     6. 12. 2023.

ISO

ISO/TC 85/SC 5

Međunarodni standard

27.120.30  

engleski   francuski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

This document describes the ceramographic preparation of uranium dioxide (UO2) sintered pellets for qualitative and quantitative microstructure examinations.
These examinations can be carried out before and after thermal or chemical etching.
They enable
— observations of fissures, inter- or intra-granular pores and inclusions, and
— measurement of pore and grain size and measurement of pore and grain size distributions.
The measurement of average grain size can be carried out using a classical counting method as described in ISO 2624 or ASTM E112[3], i.e. intercept procedure, comparison with standard grids or reference photographs.
The measurement of pore-size distributions is usually carried out by an automatic image analyser. If the grain-size distributions are also measured with an image analyser, it is recommended that thermal etching be used to reveal the grain structure uniformly throughout the whole sample.

Životni ciklus

PRETHODNO

POVUČEN
ISO 16793:2005

NAPUŠTEN
ISO 16793:2005/CD Amd 1

TRENUTNO

OBJAVLJEN
ISO 16793:2018
90.93 Odluka o potvrđivanju standarda
6. 12. 2023.