Results 11 to 20 of about 104,890 (283)

Surface roughness, optical properties, and microhardness of additively and subtractively manufactured CAD‐CAM materials after brushing and coffee thermal cycling [PDF]

Journal of Prosthodontics, 2023
Purpose To evaluate the surface roughness, optical properties, and microhardness of additively or subtractively manufactured CAD‐CAM materials after simulated brushing and coffee thermal cycling.
Gülce Çakmak, M. B. Donmez, Marcella Silva de Paula, C. Akay, Manrique Fonseca, Çiğdem Kahveci, S. Abou-Ayash, B. Yılmaz   +7 more
semanticscholar   +2 more sources

Effect of Different Mouthwashes on the Surface Microhardness and Color Stability of Dental Nanohybrid Resin Composite

Polymers, 2023
Background: Surface microhardness and color stability of dental restorative material should be sustained throughout its functional lifetime to maintain the esthetic quality of the restoration.
Tamer M. Hamdy, Ali Abdelnabi, Maha S. Othman, Rania E. Bayoumi, Rasha M. Abdelraouf   +4 more
semanticscholar   +1 more source

Modelling and optimization of microhardness of electroless Ni–P–TiO2 composite coating based on machine learning approaches and RSM

, 2021
In this study, experimental investigations on the microhardness of the synthesized electroless Ni-P-TiO2 coated aluminium composite was carried out. The coated samples were characterized by scanning electron microscopy (SEM) for surface morphology and X ...
Imtiaz Ahmed Shozib, Azlan Ahmad, M. S. A. Rahaman, A. M. Abdul-Rani, Mohammad Azad Alam, M. Beheshti, I. Taufiqurrahman   +6 more
semanticscholar   +1 more source

Selective laser melting (SLM) of AISI 316L—impact of laser power, layer thickness, and hatch spacing on roughness, density, and microhardness at constant input energy density

The International Journal of Advanced Manufacturing Technology, 2020
In selective laser melting (SLM) the variation of process parameters significantly impacts the resulting workpiece characteristics. In this study, AISI 316L was manufactured by SLM with varying laser power, layer thickness, and hatch spacing. Contrary to
S. Greco, K. Gutzeit, H. Hotz, B. Kirsch, J. Aurich   +4 more
semanticscholar   +1 more source

Color stability, Roughness, and Microhardness of Enamel and Composites Submitted to Staining/Bleaching Cycles

Saudi Dental Journal, 2020
Objective To compare the effect of two bleaching systems (bleaching gel and whitening strips) on the color change, roughness, and microhardness of enamel and two resin composites. Material and methods Two cavities were prepared on bovine enamel specimens
Sarah S. Al-Angari, G. Eckert, A. Sabrah
semanticscholar   +1 more source

Flexural Strength and Vickers Microhardness of Graphene-Doped SnO2 Thin-Film-Coated Polymethylmethacrylate after Thermocycling [PDF]

, 2023
Removable dental prostheses are commonly fabricated using polymethylmethacrylate, a material that does not have favorable mechanical properties and needs reinforcement with particles such as graphene.
Mumcu, Emre, Mustafa Borga Donmez, Çakmak, Gülce, Yilmaz, Burak, Samir Abou-Ayash, Emre Mumcu, Suat Pat, Pat, Suat, Akay, Canan, Abou-Ayash, Samir, Burak Yilmaz, Donmez, Mustafa Borga, Canan Akay, Gülce Çakmak   +13 more
core   +1 more source

Evaluation of compressive strength, shear bond strength, and microhardness values of glass-ionomer cement Type IX and Cention N

Journal of Conservative Dentistry, 2020
Aim: This study aimed to compare the compressive strength, shear bond strength, and microhardness of glass-ionomer cement (GIC) Type IX and Cention N.
Vishakha Verma, Shivani Mathur, V. Sachdev, Dishabjit Singh   +3 more
semanticscholar   +1 more source

Experimentally validated predictions of thermal history and microhardness in laser-deposited Inconel 718 on carbon steel

Additive Manufacturing, 2019
Process−property relationships in additive manufacturing (AM) play critical roles in process control and rapid certification. In laser-based directed energy deposition, powder mass flow into the melt pool influences the cooling behavior and properties of
S. Wolff, Zhengtao Gan, Stephen Lin, Jennifer L. Bennett, Wentao Yan, G. Hyatt, K. Ehmann, G. Wagner, Wing Kam Liu, Jian Cao   +9 more
semanticscholar   +1 more source

Effects of Laser Scanning Speed on Microstructure, Microhardness, and Corrosion Behavior of Laser Cladding Ni45 Coatings

, 2020
The effects of laser scanning speed on the microstructure, microhardness, and corrosion behavior of Ni45 coatings were investigated by using optical microscopy (OM), scanning electron microscopy (SEM), X-ray diffraction (XRD), microhardness, and ...
Y. Qiao, Jie Huang, D. Huang, Jian Chen, Wen Liu, Zhengbin Wang, Zheng Zhibin   +6 more
semanticscholar   +1 more source

The Effect of Thermocycling and Surface Treatments on the Surface Roughness and Microhardness of Three Heat-Pressed Ceramics Systems

Crystals, 2020
Dental ceramic restorations are widely used in restorative dentistry. However, these restorations can be affected once cemented in the oral cavity by several factors.
R. Vasiliu, S. Porojan, M. Bîrdeanu, I. Uțu, L. Porojan   +4 more
semanticscholar   +1 more source