Standard Swedish standard · SS-EN ISO 16793:2021

Nuclear fuel technology - Guidelines for ceramographic preparation of UO2 sintered pellets for microstructure examination (ISO 16793:2018)

Status: Valid

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Standard Swedish standard · SS-EN ISO 16793:2021

Nuclear fuel technology - Guidelines for ceramographic preparation of UO2 sintered pellets for microstructure examination (ISO 16793:2018)
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Scope
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.

Subjects

Fissile materials (27.120.30)


Buy this standard

Standard Swedish standard · SS-EN ISO 16793:2021

Nuclear fuel technology - Guidelines for ceramographic preparation of UO2 sintered pellets for microstructure examination (ISO 16793:2018)
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Price: 875 SEK
standard ikon pdf

PDF

Price: 875 SEK
standard ikon

Paper

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Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-80027675

Edition: 1

Approved: 2/15/2021

No of pages: 20

Replaces: SS-ISO 16793:2018