Results 51 to 60 of about 7,059 (228)

Análise de metodologias de microdureza aplicadas a compósitos: é possível comparar resultados utilizando-se diferentes protocolos? [PDF]

open access: yes, 2010
Objective: Firstly, to evaluate correlation between load and dwell time in composite resin microhardness tests, using Vickers and Knoop mechanic test methods. Secondly, to correlate time and load on Knoop microhardness test over a composite resin, and to
Barbosa, Gustavo Frainer
core  

Self‐Organization of Redeposited Binder Nanoparticles in Cubic Boron Nitride Materials

open access: yesSmall, Volume 21, Issue 52, December 29, 2025.
The article reveals a novel approach to forming micro‐spherical agglomerates through nanosecond laser irradiation, enabling rapid growth of titanium nanoparticles in air. It explores the self‐organisation of redeposited Ti nanoparticles on cubic boron nitride composites, detailing structural and chemical transformations that pave the way for innovative
Manuela Pacella   +3 more
wiley   +1 more source

Thermal Behavior in the Lens Process [PDF]

open access: yes, 1998
Direct laser metal deposition processing is a promising manufacturing technology which could significantly impact the length oftime between initial concept and finished part.
Baldwin, M. D.   +12 more
core   +1 more source

Physicomechanical Properties and Morphological Characterization of Several Universal Resin Composites After Different Aging Procedures

open access: yesJournal of Esthetic and Restorative Dentistry, Volume 37, Issue 12, Page 2533-2545, December 2025.
ABSTRACT Objectives To evaluate flexural strength, elastic modulus, microhardness, and microstructure of several universal resin composites before and after artificial aging. In addition, filler characterization, water sorption, solubility, and degree of conversion were analyzed.
Ersilia González‐Alenda   +7 more
wiley   +1 more source

Perspectives and Experiences of Adult Patients With Obesity in Dietetic Primary Health Care: A Qualitative Study in the Netherlands

open access: yesJournal of Human Nutrition and Dietetics, Volume 38, Issue 6, December 2025.
ABSTRACT Background Obesity is defined as a chronic, relapsing disease, characterised by its persistence and the frequent recurrence of weight gain following weight loss. It is linked to chronic diseases and reduced quality of life. Sustainable weight loss requires long‐term dietary and behavioural changes. Dietetic treatment outcomes vary per patient,
Annemieke van de Riet   +11 more
wiley   +1 more source

Surface Hardness of Resin Cement Polymerized under Different Ceramic Materials

open access: yesInternational Journal of Dentistry, 2012
Objectives. To evaluate the surface hardness of two light-cured resin cements polymerized under different ceramic discs. Methods. 40 experimental groups of 2 light-cured resin cement specimens (Variolink Veneer and NX3) were prepared and polymerized ...
Pimmada Kesrak, Chalermpol Leevailoj
doaj   +1 more source

Structure and wear mechanisms of nano-structured TiAlCN/VCN multilayer coatings [PDF]

open access: yes, 2007
Dry sliding wear of transition metal nitride coatings usually results in a dense and strongly adhered tribofilm on the worn surface. This paper presents detailed electron microscopy and Raman spectroscopy characterizations of the microstructure, a newly ...
Ajayi   +16 more
core   +1 more source

Biomimetic Mineralization of Keratin Scaffolds for Enamel Regeneration

open access: yesAdvanced Healthcare Materials, Volume 14, Issue 30, November 25, 2025.
Keratin‐based films guide biomimetic enamel remineralization by promoting organized hydroxyapatite growth under physiological conditions. Advanced biophysical characterization confirms keratin's structural adaptability and mineral ions‐binding affinity, supporting mineral nucleation and hierarchical crystal assembly. This study establishes keratin as a
Sara Gamea   +19 more
wiley   +1 more source

How Do You Measure That Ceramic Property? [PDF]

open access: yes, 2011
By using the dozens of consensus test standards and practices developed by the Advanced Ceramics Committee of ASTM, C-28, the measurement of mechanical, physical, thermal, and performance properties can be properly performed.
Gonczy, Stephen   +3 more
core   +1 more source

Machine learning‐based microstructure identification in lithium silicate dental glass‒ceramics

open access: yesJournal of the American Ceramic Society, Volume 108, Issue 11, November 2025.
Abstract This study explores the application of machine learning (ML) to identify and quantify the microstructure of lithium silicate based dental glass‒ceramics (DGCs), a material at the forefront of prosthetic dental applications due to its good mechanical properties and aesthetics.
Hongyeun Kim   +7 more
wiley   +1 more source

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