Results 71 to 80 of about 23,668 (218)

Does attachment removal damage enamel? Influence of adhesive, resin, and bur on surface integrity

European Journal of Oral Sciences, EarlyView.
Abstract To evaluate the combination of composites, adhesive systems, and burs considering artificial accelerated aging (AAA), influence enamel roughness and morphology after attachment removal. One hundred ninety‐two bovine enamel specimens were divided according to composite type (Transbond XT, flowable, bulk‐fill flowable), adhesive system (Single ...
Marilia Daniela Busnardo Canadas, Ana Beatriz Silva Sousa, Fernanda de Carvalho Panzeri   +2 more
wiley   +1 more source

EFFECT OF SINTERING TEMPERATURE ON TUNGSTEN CARBIDE DENSITIES AND POROSITY

Jurnal Teknik Mesin
The manufacture of tungsten carbide begins with mixing WC with Co in the milling process and then the compaction process is carried out using a compacting machine. After that, the sintering process is carried out to increase the strength of the material.
Ade Saputra Ade
doaj   +1 more source

Accelerated Fatigue Testing of High‐Speed Steel

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT The staircase method is commonly employed in the characterization of metals to determine their fatigue limit. In this approach, the stress amplitude is systematically varied around the assumed fatigue limit in consecutive tests. However, its applicability for in‐process optimization in alloy design and development is limited by the large ...
Leonhard Gertlowski, Oliver Schenk, Stefan Müller, Santiago Benito, Sebastian Weber, Christoph Broeckmann   +5 more
wiley   +1 more source

Phase content of metal-matrix composites of the system Fe-W-C which are formed by plasma precipitation

Advanced Engineering Research, 2007
Melt crystallization peculiarities of the system have been investigated by means of X-Ray diffraction and microstructure analysis. It is shown that content changing of hexagonal tungsten carbide in the mixture essentially influences processes of phases ...
A.A. RYZHKIN, A.V. ILYASOV
doaj  

Robust mold fabricated by femtosecond laser pulses for continuous thermal imprinting of superhydrophobic surfaces

Materials Research Express, 2019
Superhydrophobic surfaces rely on a large number of surface micro/nano structures to increase the roughness of a material. Producing such structures is possible through a multitude of relatively slow methods; however, economic and large scale production ...
Zhibing Zhan, Erik M Garcell, Chunlei Guo   +2 more
doaj   +1 more source

Bond strength and interfacial analysis of six CoCr alloys made by conventional casting and selective laser melting

Journal of Prosthodontics, EarlyView.
Abstract Purpose To investigate the effects of the elemental composition and the manufacturing process of cobalt chromium–molybdenum (CoCr–Mo), cobalt chromium–tungsten (CoCr–W), and CoCr–Mo‐W alloys on metal–ceramic bond strength. Materials and Methods Six CoCr‐based alloys were included in this study, a were classified into three different groups ...
Youssef S. Al Jabbari, Konstantinos Dimitriadis, Aref Sufyan, Spiros Zinelis   +3 more
wiley   +1 more source

Evaluation of the Effects of Different Types of Finishing and Polishing Protocols on the Surface Roughness of Restorative Materials

European Annals of Dental Sciences
Purpose: This study aimed to evaluate the effects of different types of finishing and/or polishing protocols on the surface roughness of two different restorative materials that are frequently preferred in pediatric dentistry.
Şaziye Sarı, Akif Demirel, Shadia Majid Abubakary   +2 more
doaj   +1 more source

Effect of adhesives and mechanical surface treatments on the hard relining of CAD‐CAM denture bases

Journal of Prosthodontics, EarlyView.
Abstract Purpose The aim of this study was to evaluate the impact of mechanical roughening, adhesive applications, and aging on the bonding between CAD‐CAM denture base materials with distinct chemical contents and hard relining material. Materials and Methods A total of 300 denture base specimens were produced by additive, subtractive, and ...
Isil Karaokutan, Ilayda Ayvaz, Gulsum Sayin Ozel   +2 more
wiley   +1 more source

The oral microbiota and periodontal health in orthodontic patients

Periodontology 2000, EarlyView.
Abstract The oral microbiota develops within the first 2 years of childhood and becomes distinct from the parents by 4 years‐of‐age. The oral microbiota plays an important role in the overall health/symbiosis of the individual. Deviations from the state of symbiosis leads to dysbiosis and an increased risk of pathogenicity.
Brandon W. Peterson, Geerten‐Has Tjakkes, Anne‐Marie Renkema, David J. Manton, Yijin Ren   +4 more
wiley   +1 more source

Phase content of metal-matrix composites of the system Fe-W-C which are formed by plasma precipitation

Вестник Донского государственного технического университета, 2018
Melt crystallization peculiarities of the system have been investigated by means of X-Ray diffraction and microstructure analysis. It is shown that content changing of hexagonal tungsten carbide in the mixture essentially influences processes of phases ...
A.A. RYZHKIN, A.V. ILYASOV
doaj