Results 1 to 10 of about 457 (153)

Preparation and Hydration of Brownmillerite-Belite-Sulfoaluminate Cement [PDF]

Materials, 2022
Brownmillerite-belite-sulfoaluminate clinker with different contents of brownmillerite were designed and successfully prepared by using limestone (LS), aluminum tailings (AT), aluminum mine (AM), and anhydrite (AH) calcined at 1330 °C for 30 min. Then, three kinds of brownmillerite-belite-sulfoaluminate cement (BBSC) were obtained by grinding mixtures ...
Yunhui Niu
exaly   +4 more sources

Electronic and elastic properties of brownmillerite

Materials Research Express, 2020
The elastic and electronic properties of brownmillerite (Ca _2 AlFeO _5 ), the fourth component in mass of Portland cement, have been determined using Density Functional Theory. The Young’s modulus obtained in this work ( E  = 169 ± 2 GPa) is much closer
Xabier M Aretxabaleta, Iñigo Etxebarria, Hegoi Manzano   +2 more
doaj   +2 more sources

Electrochemical properties of brownmillerite structured KBiFe2O5

Applied Surface Science Advances, 2021
In the present work, brownmillerite KBiFe2O5 (KBFO), a relatively new multifunctional compound, has been explored as an electrode material for applications in supercapacitors. Polycrystalline KBFO is synthesized via citrate combustion method.
Durga Sankar Vavilapalli, Raja Gopal Peri, Soma Banik, B Muthuraaman, M.S. Ramachandra Rao, Shubra Singh   +5 more
doaj   +2 more sources

The Role of Brownmillerite in Preparation of High-Belite Sulfoaluminate Cement Clinker

Applied Sciences (Switzerland), 2022
High-belite sulfoaluminate cement (HBSC) clinker containing brownmillerite was prepared using the industrial raw materials limestone, aluminum tailings, aluminum ore waste rock, and anhydrite. The effect of brownmillerite on clinker sintering and clinker
Zhongyuan Lu, Yunhui Niu, Jun Jiang
exaly   +3 more sources

Dissolution of EAF slag minerals in aqueous media: Effects of sonication on brownmillerite and gehlenite [PDF]

Ultrasonics Sonochemistry
The accumulation of electric arc furnace slag (EAFS) in landfills has been causing severe environmental problems. This study examines the dissolution properties of EAFS minerals, including brownmillerite and gehlenite, essential for their possible use in
Recep Kurtulus, Mahtab Akbarzadeh Khoei, Elijah Damilola Adesanya, Juho Yliniemi   +3 more
doaj   +2 more sources

Brownmillerite Calcium Ferrite, a Promising Perovskite‐Related Material in the Degradation of a Tight Dye under Ambient Conditions [PDF]

ChemistryOpen
Evaluation of effective and low‐cost materials as catalysts to combat the threat of pollution is a significant and growing trend. With this aim, we have synthesized calcium ferrite brownmillerite by wet preparation approach as a catalyst for pollution ...
Zahra Noori, Dr. Azim Malekzadeh, Prof. Dr. Jordi Poater   +2 more
doaj   +2 more sources

Crystal structure of brownmillerite Ba2InGaO5

Journal of Solid State Chemistry, 2014
AbstractBa2InGaO5 was prepared by high-temperature solid-state reaction. This compound adopts a brownmillerite structure below 1200°C, which was not found in past studies of Ba2(In1−xGax)2O5. Combined structure refinements against neutron and X-ray powder diffraction data show that this material adopts a layered ordering of In and Ga.
Christophe Didier, John B Claridge, Matthew J Rosseinsky   +2 more
exaly   +2 more sources

Impact of high-energy photon irradiation on early-stage dissolution of EAF slag and brownmillerite [PDF]

Scientific Reports
The influence of external conditions on the dissolution of minerals within inorganic sidestreams, such as steel slags, is a critical factor when considering their utilization pathways.
Recep Kurtulus, Kalle Inget, Cansu Kurtulus, Mahtab Akbarzadeh Khoei, Marco Cantaluppi, Sakari S. Karhula, Juha Nikkinen, Otto Mankinen, Juho Yliniemi   +8 more
doaj   +2 more sources

Selective reduction in epitaxial SrFe0.5Co0.5O2.5 and its reversibility [PDF]

Nature Communications
Oxygen-vacancy engineering in transition metal oxides enables programmable functionalities by modulating the valence states and local coordination of constituents.
Joonhyuk Lee, Yu-Seong Seo, Krishna Chaitanya Pitike, Gowoon Kim, Sangkyun Ryu, Hyeyun Chung, Su Ryang Park, Sangmoon Yoon, Younghak Kim, Valentino R. Cooper, Hiromichi Ohta, Jinhyung Cho, Hyoungjeen Jeen   +12 more
doaj   +2 more sources

Continuous and funnel-gate configurations of a permeable reactive barrier for reclamation of groundwater laden with tetracycline: experimental and simulation approaches [PDF]

Scientific Reports
The current study investigates removing tetracycline from water using batch, column, and tank experiments with statistical modelling using ANN for continuous tests.
Ayad A.H. Faisal, Layla Abdulkareem Mokif, Waqed H. Hassan, Radhi AlZubaidi, Saeed Al Marri, Khalid Hashim, Mohammad Amir Khan, Osamah J. Al-sareji   +7 more
doaj   +2 more sources