An investigation of the effects of Nd2O3 on the mechanical, structural, and optical properties of borosilicate glasses for optimizing radiation shielding performance
IF 3.8 3区 材料科学Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
{"title":"An investigation of the effects of Nd2O3 on the mechanical, structural, and optical properties of borosilicate glasses for optimizing radiation shielding performance","authors":"","doi":"10.1016/j.optmat.2024.116079","DOIUrl":null,"url":null,"abstract":"<div><p>A group of glasses with a composition, 5Li<sub>2</sub>O−(25-x) Bi<sub>2</sub>O<sub>3</sub>–10SiO<sub>2</sub>–45B<sub>2</sub>O<sub>3</sub>–15SrO−xNd<sub>2</sub>O<sub>3</sub> where x = 0, 0.5, 1, and 2 mol% was prepared to optimize shielding properties. The glass samples were coded as BiBNd0, BiBNd1, BiBNd2, and BiBNd3. Adding Nd<sub>2</sub>O<sub>3</sub> instead of Bi<sub>2</sub>O<sub>3</sub> reduced the density values, which are 5.098, 4.959, 4.930, and 4.859 g/cm<sup>3</sup> for BiBNd0, BiBNd1, BiBNd2, and BiBNd3 samples, respectively. Rising Nd<sub>2</sub>O<sub>3</sub> content also reduced the mechanical properties. For example, the Young's modulus values were 69.773, 68.327, 68.387, and 68.320 GPa for BiBNd0, BiBNd1, BiBNd2, and BiBNd3 samples, respectively, which were better than standard glasses of RS520 and RS360. The band gap values varied with the addition of Nd<sub>2</sub>O<sub>3</sub>, and their values were 2.848, 3.043, 2.613, and 2.665 eV for BiBNd0, BiBNd1, BiBNd2, and BiBNd3 samples, respectively. In addition, the absorption spectrum showed several absorption peaks related to Nd<sub>2</sub>O<sub>3</sub> due to the transition from the ground state (4I<sub>9/2</sub>) to the excited state of <sup>4</sup>F<sub>3/2</sub>, (<sup>4</sup>F<sub>5/2</sub> + <sup>2</sup>H<sub>9/2</sub>), (<sup>4</sup>F<sub>7/2</sub> + <sup>4</sup>S<sub>3/2</sub>), <sup>4</sup>F<sub>9/2</sub>, <sup>2</sup>H<sub>11/2</sub>, (<sup>4</sup>G<sub>5/2</sub> + <sup>2</sup>G<sub>7/2</sub>), and (<sup>2</sup>K<sub>13/2</sub> + <sup>4</sup>G<sub>7/2</sub> + <sup>4</sup>G<sub>9/2</sub>). In addition, adding Nd<sub>2</sub>O<sub>3</sub> reduces the neutron and gamma shielding features. For instance, the linear attenuation coefficient (LAC) values of 0.622 MeV for BiBNd0, BiBNd1, BiBNd2, and BiBNd3 were 0.500, 0.485, 0.480, and 0.470 cm<sup>−1</sup>, which were better than the RS323-G19 and RS360 and they competed with the RS520. At the same time, the transmission factor at 5 cm and 0.662 MeV was 0.082, 0.088, 0.090, 0.09, 0.082, 0.246, and 0.201 for BiBNd0, BiBNd1, BiBNd2, BiBNd, RS520, RS323-G19, and RS360, respectively. Adding Nd<sub>2</sub>O<sub>3</sub> instead of Bi<sub>2</sub>O<sub>3</sub> reduced the fast neutron removal cross-section from 0.108 to 0.104 cm<sup>−1</sup>. Lastly, the current glasses showed promising gamma, neutron, and mechanical shielding features better than other standard glasses and materials used in the radiation shielding field.</p></div>","PeriodicalId":19564,"journal":{"name":"Optical Materials","volume":null,"pages":null},"PeriodicalIF":3.8000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optical Materials","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S092534672401262X","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
A group of glasses with a composition, 5Li2O−(25-x) Bi2O3–10SiO2–45B2O3–15SrO−xNd2O3 where x = 0, 0.5, 1, and 2 mol% was prepared to optimize shielding properties. The glass samples were coded as BiBNd0, BiBNd1, BiBNd2, and BiBNd3. Adding Nd2O3 instead of Bi2O3 reduced the density values, which are 5.098, 4.959, 4.930, and 4.859 g/cm3 for BiBNd0, BiBNd1, BiBNd2, and BiBNd3 samples, respectively. Rising Nd2O3 content also reduced the mechanical properties. For example, the Young's modulus values were 69.773, 68.327, 68.387, and 68.320 GPa for BiBNd0, BiBNd1, BiBNd2, and BiBNd3 samples, respectively, which were better than standard glasses of RS520 and RS360. The band gap values varied with the addition of Nd2O3, and their values were 2.848, 3.043, 2.613, and 2.665 eV for BiBNd0, BiBNd1, BiBNd2, and BiBNd3 samples, respectively. In addition, the absorption spectrum showed several absorption peaks related to Nd2O3 due to the transition from the ground state (4I9/2) to the excited state of 4F3/2, (4F5/2 + 2H9/2), (4F7/2 + 4S3/2), 4F9/2, 2H11/2, (4G5/2 + 2G7/2), and (2K13/2 + 4G7/2 + 4G9/2). In addition, adding Nd2O3 reduces the neutron and gamma shielding features. For instance, the linear attenuation coefficient (LAC) values of 0.622 MeV for BiBNd0, BiBNd1, BiBNd2, and BiBNd3 were 0.500, 0.485, 0.480, and 0.470 cm−1, which were better than the RS323-G19 and RS360 and they competed with the RS520. At the same time, the transmission factor at 5 cm and 0.662 MeV was 0.082, 0.088, 0.090, 0.09, 0.082, 0.246, and 0.201 for BiBNd0, BiBNd1, BiBNd2, BiBNd, RS520, RS323-G19, and RS360, respectively. Adding Nd2O3 instead of Bi2O3 reduced the fast neutron removal cross-section from 0.108 to 0.104 cm−1. Lastly, the current glasses showed promising gamma, neutron, and mechanical shielding features better than other standard glasses and materials used in the radiation shielding field.
期刊介绍:
Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials.
OPTICAL MATERIALS focuses on:
• Optical Properties of Material Systems;
• The Materials Aspects of Optical Phenomena;
• The Materials Aspects of Devices and Applications.
Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.