（钠，锆）和（钙，锆）磷钼酸盐及磷钨酸盐：II-辐射测试与水解稳定性

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

作者信息

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

机构信息

Physical and Technical Research Institute, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod 603022, Russia.

G.N. Flerov Laboratory of Nuclear Reactions, Joint Institute of Nuclear Research, Dubna 141980, Russia.

出版信息

Materials (Basel). 2023 Jan 20;16(3):965. doi: 10.3390/ma16030965.

DOI:10.3390/ma16030965

PMID:36769972

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9917871/

Abstract

This paper introduces the results of hydrolytic stability tests and radiation resistance tests of phosphate molybdates and phosphate tungstates NaZr(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 NaZr(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.

摘要

本文介绍了钼酸磷酸盐和钨酸磷酸盐NaZr(PO)(XO)（X = Mo、W，0≤x≤0.5）的水解稳定性测试和耐辐射性测试结果。通过溶胶 - 凝胶合成法获得的亚微米粉末经放电等离子烧结（SPS）制备出密度相对较高（超过97.5%）的陶瓷。该研究聚焦于室温下陶瓷在静态模式下的耐水解性。在蒸馏水中测试28天后，测定了归一化浸出率。结果发现，陶瓷在静态模式下表现出高耐水解性：含Mo和含W陶瓷的归一化浸出率分别为31×10和3.36×10 g·cm·day。这些陶瓷在167 MeV Xe多电荷离子辐照通量为1×10至6×10 cm的情况下表现出高耐辐射性。含Mo的NaZr(PO)(XO)陶瓷的耐辐射性高于钨酸磷酸盐。研究表明，辐射会导致NZP陶瓷晶体结构中W和Mo的浸出率增加。