Nuclear waste disposal—pyrochlore Nuclear waste form for the immobilization of plutonium and “minor” actinides

RC Ewing, WJ Weber, J Lian - Journal of Applied Physics, 2004 - pubs.aip.org
During the past half-century, the nuclear fuel cycle has generated approximately 1400 metric
tons of plutonium and substantial quantities of the “minor” actinides, such as Np, Am, and …

Materials science of high-level nuclear waste immobilization

WJ Weber, A Navrotsky, S Stefanovsky, ER Vance… - MRS bulletin, 2009 - Springer
With the increasing demand for the development of nuclear power comes the responsibility
to address the issue of waste, including the technical challenges of immobilizing high-level …

Radiation tolerance of complex oxides

KE Sickafus, L Minervini, RW Grimes, JA Valdez… - Science, 2000 - science.org
The radiation performance of a variety of complex oxides is predicted on the basis of a
material's propensity to accommodate lattice point defects. The calculations indicate that a …

Radiation-induced amorphization resistance and radiation tolerance in structurally related oxides

KE Sickafus, RW Grimes, JA Valdez, A Cleave… - Nature materials, 2007 - nature.com
Ceramics destined for use in hostile environments such as nuclear reactors or waste
immobilization must be highly durable and especially resistant to radiation damage effects …

Metamictisation of natural zircon: accumulation versus thermal annealing of radioactivity-induced damage

L Nasdala, M Wenzel, G Vavra, G Irmer… - … to Mineralogy and …, 2001 - Springer
Annealing of the radiation damage generated in α-decay events is a common phenomenon
in natural zircons. We have studied relationships between radiation damage, age and …

Radiation-induced amorphization of rare-earth titanate pyrochlores

J Lian, J Chen, LM Wang, RC Ewing, JM Farmer… - Physical Review B, 2003 - APS
Single crystals of the entire series of A 2 Ti 2 O 7 (A= Sm to Lu, and Y) pyrochlore
compounds were irradiated by 1-MeV Kr+ ions at temperatures from 293 to 1073 K, and the …

Review of A2B2O7 pyrochlore response to irradiation and pressure

M Lang, F Zhang, J Zhang, J Wang, J Lian… - Nuclear Instruments and …, 2010 - Elsevier
This article reviews recent research on swift heavy-ion irradiations and high-pressure
studies on pyrochlores of the Gd2Zr2− xTixO7 binary [1–4]. Applying three complementary …

High temperature and high strength Y2Zr2O7 flexible fibrous membrane for efficient heat insulation and acoustic absorption

Y Xie, L Wang, Y Peng, D Ma, L Zhu, G Zhang… - Chemical Engineering …, 2021 - Elsevier
At high temperatures, lightweight ceramic and aerogel materials have serious problems
such as volume shrinkage, increased density, loss of flexibility, and decreased thermal …

Oxygen migration in A2B2O7 pyrochlores

M Pirzada, RW Grimes, L Minervini, JF Maguire… - Solid State Ionics, 2001 - Elsevier
Atomic scale computer simulation has been used to predict activation energies for oxygen
migration. In total, 54 compounds with the A2B2O7 pyrochlore structure were simulated. In …

Ion-irradiation-induced amorphization of pyrochlore

J Lian, XT Zu, KVG Kutty, J Chen, LM Wang, RC Ewing - Physical Review B, 2002 - APS
The isometric pyrochlore structure, A 2 B 2 O 7, is generally susceptible to radiation damage,
but certain compositions are remarkably resistant to radiation damage. In the binary system …