- Tytuł:
- Acoustic Emission During Firing of the Illite-Based Ceramics with Fly Ash Addition
- Autorzy:
-
Knapek, M.
Húlan, T.
Dobroň, P.
Chmelík, F.
Trník, A.
Štubňa, I. - Powiązania:
- https://bibliotekanauki.pl/articles/1402156.pdf
- Data publikacji:
- 2015-10
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
64.70.ph
61.43.Fs
65.60.+a
81.70.Pg
43.40.Le - Opis:
- In this work, illite-based ceramic body with power plant fly ash addition (60 wt.% of illite, 30 wt.% of fly ash and 10 wt.% of illite fired at 1100°C) was investigated by the thermal analysis techniques (differential thermal analysis, thermodilatometry and thermogravimetry) and the acoustic emission technique. The green body was heated up to 1100°C at three different rates 2.5, 5, 10 K/min. The most intense acoustic emission was recorded at the highest rate 10 K/min. Mutual correlations between thermal analyses and acoustic emission data were also examined. The first acoustic emission response appears at 430°C, corresponding to a small endotherm on the DTA curve, where the thermal decomposition of mineral portlandite takes place. In the temperature range from 600 to 900°C, high acoustic emission activity correlates with dehydroxylation and expansion of the sample. At temperatures higher than 800°C, the source of acoustic emission signals is the thermal decomposition of calcite. The amorphous phase created from illite at 920°C becomes pyroplastic, therefore it is not documented by the acoustic emission technique.
- Źródło:
-
Acta Physica Polonica A; 2015, 128, 4; 783-786
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł