Tailoring the radiation tolerance of vanadate–phosphate fluorapatites by chemical composition control
The apatite-type structure of AI4AII6(BO4)6(OH, F, Cl)2 (AI, AII = Ca, Na, rare earths, fission product elements such as I and Tc, and/or actinides; B = Si, P, V, or Cr) offers unique structural advantages as an advanced nuclear waste form because a wide variety of actinides and fission products can...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/99777 http://hdl.handle.net/10220/17738 |
| _version_ | 1826119976015101952 |
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| author | Lu, Fengyuan Dong, Zhili Zhang, Jiaming White, Timothy John Ewing, Rodney C. Lian, Jie |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Lu, Fengyuan Dong, Zhili Zhang, Jiaming White, Timothy John Ewing, Rodney C. Lian, Jie |
| author_sort | Lu, Fengyuan |
| collection | NTU |
| description | The apatite-type structure of AI4AII6(BO4)6(OH, F, Cl)2 (AI, AII = Ca, Na, rare earths, fission product elements such as I and Tc, and/or actinides; B = Si, P, V, or Cr) offers unique structural advantages as an advanced nuclear waste form because a wide variety of actinides and fission products can be incorporated into the structure through coupled cation and anion substitutions. However, apatite undergoes a radiation-induced crystalline-to-amorphous transition, and previously, the effect of composition on the radiation-induced transformation has not been well understood. In this study, we demonstrate that vanadate–phosphate fluorapatite's radiation tolerance can be controlled by varying the composition. Enhanced radiation tolerance is achieved by replacing vanadium with phosphorus at the B-site or by replacing Pb with Ca at the A-site. Correlations among chemical composition, radiation performance and electronic to nuclear stopping power ratio were demonstrated and suggest that the ionization process resulting from electronic energy loss may enhance annealing of defects upon radiation damage. |
| first_indexed | 2024-10-01T05:08:57Z |
| format | Journal Article |
| id | ntu-10356/99777 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:08:57Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/997772020-06-01T10:26:39Z Tailoring the radiation tolerance of vanadate–phosphate fluorapatites by chemical composition control Lu, Fengyuan Dong, Zhili Zhang, Jiaming White, Timothy John Ewing, Rodney C. Lian, Jie School of Materials Science & Engineering DRNTU::Engineering::Materials The apatite-type structure of AI4AII6(BO4)6(OH, F, Cl)2 (AI, AII = Ca, Na, rare earths, fission product elements such as I and Tc, and/or actinides; B = Si, P, V, or Cr) offers unique structural advantages as an advanced nuclear waste form because a wide variety of actinides and fission products can be incorporated into the structure through coupled cation and anion substitutions. However, apatite undergoes a radiation-induced crystalline-to-amorphous transition, and previously, the effect of composition on the radiation-induced transformation has not been well understood. In this study, we demonstrate that vanadate–phosphate fluorapatite's radiation tolerance can be controlled by varying the composition. Enhanced radiation tolerance is achieved by replacing vanadium with phosphorus at the B-site or by replacing Pb with Ca at the A-site. Correlations among chemical composition, radiation performance and electronic to nuclear stopping power ratio were demonstrated and suggest that the ionization process resulting from electronic energy loss may enhance annealing of defects upon radiation damage. 2013-11-15T07:50:47Z 2019-12-06T20:11:19Z 2013-11-15T07:50:47Z 2019-12-06T20:11:19Z 2013 2013 Journal Article Lu, F., Dong, Z., Zhang, J., White, T. J., Ewing, R. C., & Lian, J. (2013). Tailoring the radiation tolerance of vanadate–phosphate fluorapatites by chemical composition control. RSC advances, 3(35), 15178-15184. 2046-2069 https://hdl.handle.net/10356/99777 http://hdl.handle.net/10220/17738 10.1039/c3ra42246a en RSC advances |
| spellingShingle | DRNTU::Engineering::Materials Lu, Fengyuan Dong, Zhili Zhang, Jiaming White, Timothy John Ewing, Rodney C. Lian, Jie Tailoring the radiation tolerance of vanadate–phosphate fluorapatites by chemical composition control |
| title | Tailoring the radiation tolerance of vanadate–phosphate fluorapatites by chemical composition control |
| title_full | Tailoring the radiation tolerance of vanadate–phosphate fluorapatites by chemical composition control |
| title_fullStr | Tailoring the radiation tolerance of vanadate–phosphate fluorapatites by chemical composition control |
| title_full_unstemmed | Tailoring the radiation tolerance of vanadate–phosphate fluorapatites by chemical composition control |
| title_short | Tailoring the radiation tolerance of vanadate–phosphate fluorapatites by chemical composition control |
| title_sort | tailoring the radiation tolerance of vanadate phosphate fluorapatites by chemical composition control |
| topic | DRNTU::Engineering::Materials |
| url | https://hdl.handle.net/10356/99777 http://hdl.handle.net/10220/17738 |
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