Synthesis and sintering of a monazite–brabantite solid solution ceramic for nuclear waste storage

Pb diffusion in monazite: New constraints from the experimental study of interdiffusion

“…1). Porosity has not been measured, as it is not important for this study, but it should likely be much less than 10%, as found by Montel et al (2006) on similar products.…”

Synthesis and sintering of a monazite–brabantite solid solution ceramics using metaphosphate

“…[18][19][20][21] In order to evaluate the actual potential of this product, several programs dealing with synthesis, sintering, and leaching of monazite are presently in progress. [22][23][24][25][26][27] Montel et al 28 demonstrated that it is possible to synthesize and sinter ssMB with a procedure suitable for an industrial process under a radioactive environment. The chosen composition, La 0.73 Ce 0.09 Ca 0.09 Th 0.09 PO 4 simulates ceramics with 10 wt% of trivalent (Ce 3+ surrogate for Pu 3+ , Am 3+ and Cm 3+ ) or tetravalent (Th 4+ surrogate for Np 4+ ) actinides.…”

Comparison of microstructure and chemical durability of Ce0.9Gd0.1PO4 ceramics prepared by hot-press and pressureless sintering

“…Because of the low solubility and slow dissolution rates, these phosphates exhibit higher resistance against corrosion by the geological fluids than the borosilicate glass [1,2]. Monazite (Ln 3 þ PO 4 , monoclinic system, space group P2 1 /n, Z=4) is a natural light rare-earth orthophosphate mineral, which shows high actinides loadings, mechanical stability, chemical durability and radioresistance [11][12][13][14][15][16][17][18][19][20][21]. Moreover, monazite can incorporate trivalent and/or tetravalent actinides due to its high-structural flexibility [13][14][15][16][22][23][24][25].…”