Ion irradiation behaviour and chemical durability of simple borosilicate glasses

Mechanical, Thermal and Chemical Durability Behaviors of CdO-Bi<sub>2</sub>O<sub>3</sub> Boro-Phosphate Glasses Containing Fe<sub>2</sub>O<sub>3</sub>

“…The sudden enhancement of chemical durability with decreasing the glass transition temperature at the same time on replacing 10 wt% and 15 wt% CdO by Bi 2 O 3 can be attributed to the structural changes that strengthen the network, as observed from IR results [7], at these Bi 2 O 3 concentrations. As stated before [16] A. Inoue, Y. Yokoyama, Y. Shinohara and T. Masumoto, Mater. Trans.…”

“…water resistance ability of phosphate glass. The non linearity in the values of DR and hence in chemical durability with Bi 2 O 3 content especially for the sample with 10 wt% Bi 2 O 3 which showed sudden and large decrease in DR than that with 5 wt% Bi 2 O 3 can be interpreted from the IR results [7], which proved that for the glass containing 10 wt% Bi 2 O 3 , some of Bi atoms entered the glasses as a former with an increase also in the FeO 4 percentage which is proved [16] to increase in the chemical durability. This is beside the formation of P-O-Bi and/or P-O-Fe cross link with relatively high density for the present glasses with Bi 2 O 3 of 10 wt% and 15 wt%.…”

Spectroscopic Investigations of Radiation Damage in Glasses Used for Immobilization of Radioactive Waste

“…In some other reports, incorporation of alpha particles in the glass matrix, either in the form of ion beam (viz. 4 He beam) or direct incorporation of actinides have been described [58][59][60][61][62]. Matzke [63] had incorporated 244 Cm in glass as well as SYNROC to simulate the alpha damages.…”

Radiation damage of alkali borate glasses for application in safe nuclear waste disposal

“…The exposure to high energy radiations produces an extremely large number of defects in glasses, such as trapped electrons or holes, either on pre-existing sites in the glass or on sites created by the bond breaking action of radiation [31,32,34,53,[61][62][63][64][65][66][67][68][69][70][71]. To better understand these aspects, a more deep knowledge of the borate glass structure is needed.…”

“…In particular, while borosilicate glasses matrices are usually applied for high level waste [24][25][26][27][28][29][30], borate glassy systems are not so far investigated: these matrices could be considered and optimized for the application in low (or middle) level waste immobilization. Moreover, to ensure a safe storage of vitrified nuclear waste, a deep analysis of microscopic radiation damage mechanism [31][32][33][34][35][36][37][38][39][40][41][42][43] besides corrosion and leaching behavior [44][45][46][47][48][49][50][51] are needed. In fact, the action of radionuclide ions combined with environmental conditions could produce an increased concentration of defects, causing volatilization of oxygen molecule, devitrification of the glassy matrices and worsening their ability for safe storing.…”