Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Mazen Alshaaer"'
Publikováno v:
Materials, Vol 17, Iss 17, p 4338 (2024)
Over the past few decades, researchers have focused on developing new production methods for geopolymers to improve their properties for use in multiple applications as a functional material. This study introduces a new geopolymer system based on wol
Externí odkaz:
https://doaj.org/article/f1987d57f10a4b38adf325be84e8d760
Autor:
Marwah M. Alsowayigh, Amal H. Alsehli, Fahad Alqahtani, Fahad Abdulaziz, Moncef Tounsi, Mazen Alshaaer, Abdulaziz Alanazi
Publikováno v:
Catalysts, Vol 14, Iss 8, p 512 (2024)
In this study, calcium-rich resource minerals such as brushite, tricalcium phosphate (TCP), and hydroxyapatite were tested as catalysts for the methanolysis of alkaline solutions of NaBH4 to generate hydrogen H2. The synthesis of calcium phosphate co
Externí odkaz:
https://doaj.org/article/cf9b662adfd3424ea5c287454192396e
Autor:
Fahad Abdulaziz, Khalil Issa, Mohammed Alyami, Satam Alotibi, Abdulaziz A. Alanazi, Taha Abdel Mohaymen Taha, Asma M. E. Saad, Gehan A. Hammouda, Nagat Hamad, Mazen Alshaaer
Publikováno v:
Biomimetics, Vol 8, Iss 7, p 547 (2023)
This study aimed to explore the effects of the full-scale replacement (up to 100%) of Ca2+ ions with Ag1+ ions in the structure of brushite (CaHPO4·2H2O). This substitution has potential benefits for producing monophasic and biphasic Ca1−xAgxHPO4
Externí odkaz:
https://doaj.org/article/738d494adc9b4f2db87e6ba350e218e7
Autor:
Abdulaziz A. Alanazi, Fahad Abdulaziz, Mohammed Alyami, Satam Alotibi, Salah Sakka, Saida Abu Mallouh, Rund Abu-Zurayk, Mazen Alshaaer
Publikováno v:
Biomimetics, Vol 8, Iss 4, p 333 (2023)
This study was carried out to investigate the effect of a complete exchange of Ca2+ with Zn2+ ions on the structure of brushite (CaHPO4·2H2O), which might be advantageous in the production process of CaxZn1−xHPO4·nH2O. To acquire the starting sol
Externí odkaz:
https://doaj.org/article/346ba19a7fde4fb2a2c22673ad0d71e5
Autor:
Satam Alotibi, Mazen Alshaaer
Publikováno v:
Crystals, Vol 13, Iss 6, p 941 (2023)
The influence of ionic substitution in the Ca1−xCoxHPO4·nH2O compound was studied systematically for the first time. Among the fascinating features of these biomaterials is that they can be easily tailored for specific applications, for example, a
Externí odkaz:
https://doaj.org/article/92d7c1777bae40298d6469eae5483809
Autor:
Mazen Alshaaer, Khalil Issa, Ahmed S. Afify, Moustapha E. Moustapha, Abdulaziz A. Alanazi, Ammar Elsanousi, Talal F. Qahtan
Publikováno v:
Crystals, Vol 12, Iss 7, p 940 (2022)
Because the impact of the full-scale substitution of Ca2+ in brushite (CaHPO4·2H2O) with Ni2+ ions has never been systematically explored, it is the focus of this investigation, as it holds potential for use in CaxNi1−xHPO4·nH2O production. These
Externí odkaz:
https://doaj.org/article/191bb5160cf344a6956acb53ed9fe475
Autor:
Mazen Alshaaer
Publikováno v:
Frontiers in Built Environment, Vol 7 (2021)
This study describes the properties of geopolymer composites reinforced with bidirectional jute fibers. Their flexural strength is 12 MPa, four times higher than the strength of non-reinforced reference geopolymers. The bidirectional jute-reinforced
Externí odkaz:
https://doaj.org/article/1e5df39ad909450197a966f2e9d6b178
Effect of Ca2+ Replacement with Cu2+ Ions in Brushite on the Phase Composition and Crystal Structure
Autor:
Mazen Alshaaer, Juma’a Al-Kafawein, Ahmed S. Afify, Nagat Hamad, Ghassan Saffarini, Khalil Issa
Publikováno v:
Minerals, Vol 11, Iss 10, p 1028 (2021)
The gradual replacement of Ca2+ with Cu2+ ions in brushite (CaHPO4·2H2O) has been extensively studied and discussed. The approach adopted in this work has not been systematically explored in previous studies. This novel approach may prove beneficial
Externí odkaz:
https://doaj.org/article/6eaa3674c5a344fbb2f2f58f3580b5cc
Autor:
Mazen Alshaaer, Mohammed H. Kailani, Nidaa Ababneh, Saida A. Abu Mallouh, Bassam Sweileh, Abdalla Awidi
Publikováno v:
Processing and Application of Ceramics, Vol 11, Iss 1, Pp 13-20 (2017)
Three-dimensionally ordered macroporous biomaterials containing hydroxyapatite were synthesized using natural luffa cylindrical fibres (with diameter of 100–400 µm) as templates. The preliminary evaluation of this novel method for production of po
Externí odkaz:
https://doaj.org/article/ea7c7555dce743feb3e562ef8bbafa71
Autor:
Mazen Alshaaer, Khalil Issa, Abdulaziz Alanazi, Saida Abu Mallouh, Ahmed S. Afify, Moustapha E. Moustapha, Kostas Komnitsas
Publikováno v:
Minerals, Vol 11, Iss 3, p 284 (2021)
The present study investigates the gradual replacement of Ca2+ with Mg2+ ions in brushite (CaHPO4·2H2O). To date, this approach has not been systematically explored and may prove beneficial for the production of Ca1−xMgxHPO4·nH2O materials with t
Externí odkaz:
https://doaj.org/article/3ea5a9349e8b479fbff7c2a25079fd42