Consolidation of calcium phosphate powder through microwave sintering / Natasha Ahmad Nawawi, Ramesh Singh and Tan Chou Yong
In the last 50 years, the major drawback of HA ceramic usage in clinical applications is its inherent brittleness and lower mechanical strength than those of cortical bone. This is turn calls for the development of dense nanostructured HA with the major concern is to enhance densification while limi...
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| Format: | Article |
| Language: | English |
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Universiti Teknologi MARA Cawangan Pulau Pinang
2018
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| Online Access: | https://ir.uitm.edu.my/id/eprint/28891/ |
| _version_ | 1848807145749872640 |
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| author | Ahmad Nawawi, Natasha Singh, Ramesh Tan, Chou Yong |
| author_facet | Ahmad Nawawi, Natasha Singh, Ramesh Tan, Chou Yong |
| author_sort | Ahmad Nawawi, Natasha |
| building | UiTM Institutional Repository |
| collection | Online Access |
| description | In the last 50 years, the major drawback of HA ceramic usage in clinical applications is its inherent brittleness and lower mechanical strength than those of cortical bone. This is turn calls for the development of dense nanostructured HA with the major concern is to enhance densification while limiting its grain growth. Hence, a promising way to obtain this could be a fabrication of fully dense nanostructured materials through sintering process. In this work, eggshell derived hydroxyapatite (HA-Es) powder has been prepared via solid state sintering and its sinterability was investigated through microwave sintering at various sintering temperatures (950-1250 °C). The phase stability, microstructural evolution and relative density of HA-Es were deliberated. The results indicate that microwave sintering regime has been successfully employed and this short sintering regime did not promote extensive grain growth even when sintered at high temperature. |
| first_indexed | 2025-11-14T22:38:10Z |
| format | Article |
| id | uitm-28891 |
| institution | Universiti Teknologi MARA |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T22:38:10Z |
| publishDate | 2018 |
| publisher | Universiti Teknologi MARA Cawangan Pulau Pinang |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uitm-288912025-07-11T02:00:39Z https://ir.uitm.edu.my/id/eprint/28891/ Consolidation of calcium phosphate powder through microwave sintering / Natasha Ahmad Nawawi, Ramesh Singh and Tan Chou Yong esteem Ahmad Nawawi, Natasha Singh, Ramesh Tan, Chou Yong Study and teaching Laboratories. General works Energy consumption Microwave communication systems In the last 50 years, the major drawback of HA ceramic usage in clinical applications is its inherent brittleness and lower mechanical strength than those of cortical bone. This is turn calls for the development of dense nanostructured HA with the major concern is to enhance densification while limiting its grain growth. Hence, a promising way to obtain this could be a fabrication of fully dense nanostructured materials through sintering process. In this work, eggshell derived hydroxyapatite (HA-Es) powder has been prepared via solid state sintering and its sinterability was investigated through microwave sintering at various sintering temperatures (950-1250 °C). The phase stability, microstructural evolution and relative density of HA-Es were deliberated. The results indicate that microwave sintering regime has been successfully employed and this short sintering regime did not promote extensive grain growth even when sintered at high temperature. Universiti Teknologi MARA Cawangan Pulau Pinang 2018-12 Article PeerReviewed text en https://ir.uitm.edu.my/id/eprint/28891/1/AJ_%20NATASHA%20AHMAD%20NAWAWI%20EAJ%2018.pdf Ahmad Nawawi, Natasha and Singh, Ramesh and Tan, Chou Yong (2018) Consolidation of calcium phosphate powder through microwave sintering / Natasha Ahmad Nawawi, Ramesh Singh and Tan Chou Yong. (2018) ESTEEM Academic Journal <https://ir.uitm.edu.my/view/publication/ESTEEM_Academic_Journal.html>, 14 (Dec): 2. pp. 10-19. ISSN 2289-4934 http://uppp.uitm.edu.my |
| spellingShingle | Study and teaching Laboratories. General works Energy consumption Microwave communication systems Ahmad Nawawi, Natasha Singh, Ramesh Tan, Chou Yong Consolidation of calcium phosphate powder through microwave sintering / Natasha Ahmad Nawawi, Ramesh Singh and Tan Chou Yong |
| title | Consolidation of calcium phosphate powder through microwave sintering / Natasha Ahmad Nawawi, Ramesh Singh and Tan Chou Yong |
| title_full | Consolidation of calcium phosphate powder through microwave sintering / Natasha Ahmad Nawawi, Ramesh Singh and Tan Chou Yong |
| title_fullStr | Consolidation of calcium phosphate powder through microwave sintering / Natasha Ahmad Nawawi, Ramesh Singh and Tan Chou Yong |
| title_full_unstemmed | Consolidation of calcium phosphate powder through microwave sintering / Natasha Ahmad Nawawi, Ramesh Singh and Tan Chou Yong |
| title_short | Consolidation of calcium phosphate powder through microwave sintering / Natasha Ahmad Nawawi, Ramesh Singh and Tan Chou Yong |
| title_sort | consolidation of calcium phosphate powder through microwave sintering / natasha ahmad nawawi, ramesh singh and tan chou yong |
| topic | Study and teaching Laboratories. General works Energy consumption Microwave communication systems |
| url | https://ir.uitm.edu.my/id/eprint/28891/ https://ir.uitm.edu.my/id/eprint/28891/ |