Details

Autor(en) / Beteiligte

• Karaeva, M E
• Savinykh, D O
• Orlova, A I
• Nokhrin, A V
• Boldin, M S
• Murashov, A A
• Chuvil'deev, V N
• Skuratov, V A
• Issatov, A T
• Yunin, P A
• Nazarov, A A
• Drozdov, M N
• Potanina, E A
• Tabachkova, N Y

Titel

(Na, Zr) and (Ca, Zr) Phosphate-Molybdates and Phosphate-Tungstates: II-Radiation Test and Hydrolytic Stability

Ist Teil von

• Materials, 2023-01, Vol.16 (3), p.965

Ort / Verlag

Switzerland: MDPI AG

Erscheinungsjahr

2023

Link zum Volltext

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• This paper introduces the results of hydrolytic stability tests and radiation resistance tests of phosphate molybdates and phosphate tungstates Na Zr (PO ) (XO ) , X = Mo, W (0 ≤ x ≤ 0.5). The ceramics characterized by relatively high density (more than 97.5%) were produced by spark plasma sintering (SPS) of submicron powders obtained by sol-gel synthesis. The study focused on hydrolytic resistance of the ceramics in static mode at room temperature. After 28 days of testing in distilled water, the normalized leaching rate was determined. It was found that the ceramics demonstrated high hydrolytic resistance in static mode: the normalized leaching rates for Mo- and W-containing ceramics were 31·10 and 3.36·10 g·cm ·day , respectively. The ceramics demonstrated high resistance to irradiation with 167 MeV Xe multiple-charged ions at fluences ranging from 1·10 to 6·10 cm . The Mo-containing Na Zr (PO ) (XO ) ceramics were shown to have higher radiation resistance than phosphate tungstates. Radiation was shown to trigger an increase in leaching rates for W and Mo in the crystal structure of NZP ceramics.