Results 181 to 190 of about 55,060 (259)

The Hidden Dangers of Counterfeit and Replica‐Like Endodontic Files: A Scoping Review of Current Evidence

open access: yesAustralian Dental Journal, Volume 71, Issue 1, Page 5-25, March 2026.
ABSTRACT This scoping review mapped and critically appraised laboratory evidence on counterfeit and replica‐like nickel–titanium endodontic files, evaluating design, metallurgical composition, surface finishing, and mechanical performance to clarify clinical and regulatory implications.
Felipe Immich   +5 more
wiley   +1 more source

Tuning Hardness of ZrO2–SiO2 Glass‐Ceramics Through Densification

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 3, March 2026.
ABSTRACT Compared with homogeneous glasses, glass‐ceramics with heterogeneous microstructures enable multiscale architecture control to optimize their performance. In this work, we attempt to regulate the mechanical properties of ZrO2–SiO2 glass‐ceramics through hot compression‐induced densification.
Menghan Shi   +11 more
wiley   +1 more source

3D Printing Polymer Derived SiC/SiOC(N) Ceramic Matrix Composites From Replica of SiC/Polyurethane Cellular Structures

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 3, March 2026.
ABSTRACT Cellular SiC/thermoplastic polyurethane (TPU) components were printed via fused filament fabrication and impregnated with a commercial polysilazane. The pyrolysis process in an inert atmosphere converts the structure into a ceramic‐matrix composite through the polymer‐derived ceramics (PDCs) route.
Rajat Chaudhary   +5 more
wiley   +1 more source

Sleeve material, height, and drill surface changes in guided endodontics: Vicker's hardness and scanning electron microscope evaluation (A pilot study). [PDF]

open access: yesBMC Oral Health
Muryani A   +7 more
europepmc   +1 more source

Nanoindentation Hardness Test for Estimation of Vickers Hardness

open access: yesNanoindentation Hardness Test for Estimation of Vickers Hardness
The nanoindentation hardness test has been carried out on stainless steel SUS 316 plates cold-worked to various degrees to develop a method for estimating the hardness based on the direct observation of the residual impression in nano-meter scale with an atomic force microscope.
openaire  

The effect of coffee thermocycling and color correction serum on the colorimetric properties and hardness of CAD‐CAM restorative materials

open access: yesJournal of Prosthodontics, Volume 35, Issue 3, Page 343-351, March 2026.
Abstract Purpose To compare the stainability, translucency, opalescence, whiteness, gloss, and hardness of 4 computer‐aided design and computer‐aided manufacturing (CAD‐CAM) restorative materials after simulated coffee drinking and color correction. Materials and Methods Four CAD‐CAM blocks were investigated (n = 40): resin nanoceramic (Cerasmart, CS),
Hanan Al‐Johani
wiley   +1 more source

Vickers Hardness of Rocks and Minerals

open access: yesJournal of the Research Association of Powder Technology, Japan, 1976
Yoshiteru Kanda, Michitaka Suzuki
openaire   +2 more sources

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