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- Calcium-silicate-hydrate (1)
- Cement (1)
- Class F Fly Ash (1)
- Compression Strength (1)
- Density (1)
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- Durability Tests (1)
- Energy Harvesting; Nanocomposite; 3D Printing; Hybrid Nanogenerators; Piezoelectricity; Triboelectricity; Ceramic Filler (1)
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- Fly Ash (1)
- Gamma-ray (1)
- Hydraulic Fracturing (1)
- Molecular dynamics (1)
- Proppant (1)
- Reservoir Stimulation (1)
- Resilience Tests (1)
- Sand (1)
- Volcano Ash (1)
Articles 1 - 4 of 4
Full-Text Articles in Ceramic Materials
Fly Ash Proppant Developed For Hydraulic Fracturing, Raz Rzgar Haydar
Fly Ash Proppant Developed For Hydraulic Fracturing, Raz Rzgar Haydar
Theses and Dissertations
Proppants are critical components in hydraulic fracturing, used to maintain fracture conductivity and enhance reservoir stimulation. In high-pressure and harsh reservoir environments, the use of high-strength proppants is essential to ensure well performance. Conventional proppants, being sand, ceramic, and sintered bauxite can be expensive, and their use often requires costly fracture fluids. This study investigates the possibility of utalizing fly ash geopolymers as a sustainable alternative that is also cost-effective for proppants manufacturing. Fly ash, a by-product from the combustion of coal and other materials, was explored as a base material for proppants, utilizing an alkaline solution as an activator …
Degradation Of The Mechanical Properties And Hydrogen Generation In Cement Under Gamma Irradiation Assessed By Atomistic Simulation, Omar Al Najjar
Degradation Of The Mechanical Properties And Hydrogen Generation In Cement Under Gamma Irradiation Assessed By Atomistic Simulation, Omar Al Najjar
Theses and Dissertations
Although understanding the effect of the gamma-ray on cement-based materials is essential for many applications, such as the concrete contaminate of nuclear reactors or the storage of radioactive waste in cement-based waste forms, such understanding is still not fully developed. The importance of having such an understanding is becoming of utmost importance, especially with calls to extend the lifetime of nuclear power plants, and also due to some recent incidents of failures of the concrete structure in the nuclear fields. In this work, the details of preparing three molecular models as a representative structure of the main binding phase of …
Fabrication & Characterization Of Hybrid Piezoelectric/Triboelectric Nanocomposite Nanogenerators Via Fusion Deposition Modeling, Khaled El Toukhy
Fabrication & Characterization Of Hybrid Piezoelectric/Triboelectric Nanocomposite Nanogenerators Via Fusion Deposition Modeling, Khaled El Toukhy
Theses and Dissertations
This thesis aims to discuss the potential of using piezoelectric and triboelectric nanogenerators (PTENGs) for energy harvesting, particularly in the sportswear industry. PTENG's main advantage is that it offers good flexibility making it suitable for high-strain applications. The piezoelectric effect is induced by embedding piezoelectric nanofillers into one of the two triboelectric layers. PTENGs can generate both piezoelectric and triboelectric signals when strained resulting in an enhanced output compared to regular piezoelectric nanogenerators (PENGs) and triboelectric nanogenerators (TENGs). TPU was adopted as the matrix for PTENGs advantageous due to their flexibility, low electrical resistivity, and compatibility with additive manufacturing techniques. …
The Effect Of Air-Entraining On Concrete Durability, Jane Magdy Aziz Abadir
The Effect Of Air-Entraining On Concrete Durability, Jane Magdy Aziz Abadir
Archived Theses and Dissertations
No abstract provided.