vix.ing · top · new · best · stats

Immobilization of the rare earth fraction in lanthanide phosphates LnPO4. Radiation and hydrolytic resistance of the matrix

2021/12/01 by Dmitriy Mikhaylov, D. A. Mikhaylov, Mikhaylov, D. A. +27
Engineering · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Luminescence Properties of Advanced Materials #Materials Science (cond-mat.mtrl-sci) #Microwave Dielectric Ceramics Synthesis #Nuclear materials and radiation effects #cond-mat.mtrl-sci

paper · pdf · doi:10.48550/arxiv.2112.00844

11 pages, 6 figures, one table

arxiv created 2021/12/01 · openalex publication_date 2021/12/01 · arxiv updated 2021/12/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Radiation and hydrolytic resistance of Eu0.054Gd0.014Y0.05La0.111Ce0.2515Pr0.094Nd0.3665Sm0.059PO4 with monazite structure has been studied. The powders were obtained by deposition from solutions. Ceramic specimens with relative density ~97% were obtained by Spark Plasma Sintering (heating rate Vh = 50 °C/min, sintering temperature Ts = 1070 °C, sintering time ts = 18 min). Irradiation by accelerated electrons up to dose of 109 Ge was found not to result in a destruction of the target phase. After the irradiation, an increasing of the leaching rate by an order of magnitude (up to ~10-8 g/(cm2*day)) and a reduction of the mechanical properties by 32% as compared to the non-irradiated ceramic specimen were observed.

Related