A5057003501- Advanced materials and composites
- Dental materials and restorations
- Aluminum Alloys Composites Properties
- Metallurgy and Material Science
- Orthopaedic implants and arthroplasty
- Powder Metallurgy Techniques and Materials
- Additive Manufacturing and 3D Printing Technologies
- Tunneling and Rock Mechanics
- Dental Implant Techniques and Outcomes
- Dental Research and COVID-19
- Diamond and Carbon-based Materials Research
- 3D IC and TSV technologies
- Mineral Processing and Grinding
- Advanced ceramic materials synthesis
- Injection Molding Process and Properties
Element Six (Germany)
2018-2023
Alexandria University
2021-2022
Central Metallurgical Research and Development Institute
2009-2013
The aim of this study was to compare the microshear bond strength ceramic veneers with digital die spacer settings at 20, 40, and 100 µm.Eighteen milled lithium disilicate microdiscs (IPS e.max CAD, Ivoclar Vivadent) were divided into three groups (n = 6) according their settings: group A 20 µm, B 40 C µm. Six randomly selected sound maxillary premolars received each. Each microdisc 1 mm in diameter height. buccal surfaces prepared a 0.5 depth enamel. After cementation, specimens...
The purpose of this study was to compare the fracture resistance ceramic veneers with digital die spacer settings at 20 µm, 40 and 100 µm.Eighteen sound maxillary first premolars were divided into three groups (n=6) according their settings: group A=20 B=40 C=100 µm. Each tooth prepared a depth 0.5 mm receive lithium disilicate (IPS e.max CAD, Ivoclar Vivadent). All thermocycled (2500 cycles 5-55°C) subjected test using universal testing machine until failure. Failure modes examined...
Three groups of bronze based composites with different amounts slide additive (graphite) and friction additives (SiC SiO2) were prepared by powder metallurgy technique. The corrosive wear behaviours the resulting in electrochemical aqueous solutions, namely, acidic rain, neutral rain wastewater, comparatively investigated. mechanisms discussed on examination worn surface morphologies composite block materials means scanning electron microscopy equipped an energy dispersion spectrometry....
Objective:The aim of this study was to compare the microshear bond strength (µSBS) lithium disilicate microdiscs with cement film thicknesses 20 µm, 40 and 100 µm at coronal, middle, cervical areas buccal surface maxillary premolars.Methods: 81 (IPS e.max CAD, Ivoclar Vivadent) were divided into three main groups (n=27) according location enamel on surface, then each subdivided subgroups (n=9) thickness.Group A=20 Group B=40 C=100 µm.Each group coronal (c), middle (m), (v) areas.The surfaces...