Results 81 to 90 of about 98,119 (208)
Fluoride Dose-Response of Human and Bovine Enamel Artificial Caries Lesions under pH-Cycling Conditions [PDF]
, 2015 Objectives This laboratory study aimed to (a) compare the fluoride dose-response of different caries lesions created in human and bovine enamel (HE/BE) under pH-cycling conditions and (b) investigate the suitability of Knoop and Vickers surface ...
Juthani, Kalp, Lippert, Frank
core +1 more source
Advanced Engineering Materials, Volume 27, Issue 14, July 2025.Al–Si alloys are particularly in demand for automotive and electronic applications, thanks to their excellent wear and thermal properties. Nevertheless, when processed by conventional methods with low cooling rates, the coarse primary Si phases are responsible for increasing brittleness and inducing crack propagation.
Layla Shams Tisha +3 more
wiley +1 more source
Structure and wear mechanisms of nano-structured TiAlCN/VCN multilayer coatings [PDF]
, 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
Regression analysis of material properties and hardness of dense boron carbide
International Journal of Applied Ceramic Technology, Volume 22, Issue 4, July/August 2025.Abstract Material properties directly affect the final performance of the produced articles. This study aims to establish a correlation between materials properties and hardness of boron carbide samples. Ten different boron carbide powders were sintered to high densities by spark plasma sintering, and material properties (grain size, density ...
M. Fatih Toksoy, Richard A. Haber
wiley +1 more source
Effect of light-curing methods on resin cement Knoop hardness at different depths.
Brazilian Dental Journal, 2007 This study evaluated, using Knoop hardness test, the polymerization depth of Rely-X dual-cured resin cement activated by chemical reaction alone (control group) or by chemical/physical mode with light curing through a 1.5-mm-thick ceramic layer ...
M. Sinhoreti +5 more
semanticscholar +1 more source
Nano- and micromechanical properties of dentine: Investigation of differences with tooth side [PDF]
, 2011 NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Biomechanics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control ...
Brauer, DS +3 more
core +1 more source
Chemistry–Methods, Volume 5, Issue 5, May 2025.We discuss the tarnishing issues of historical silver objects and review the silver (pure and sterling) aging methods employed in recent conservation and heritage studies, with a focus on chemical aging methods. The aging protocols used in the reference studies are tabulated for quick comparisons.
Qing Wu +5 more
wiley +1 more source
Brazilian Dental Journal, 2007 This study evaluated the bond strength (push-out method) and Knoop hardness of Z250 composite resin, photoactivated with XL 2500 curing unit, using different protocols: continuous mode (700 mW/cm(2) for 20s) (CO); soft-start (50 mW/cm(2) for 5 s ...
E. Dall’Magro +5 more
semanticscholar +1 more source
How Do You Measure That Ceramic Property? [PDF]
, 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
120 Years of “Lemurology”: A Qualitative Review of What We Have Learned
Biotropica, Volume 57, Issue 3, May 2025.This review synthesizes about 120 years of scientific articles, starting in 1900, to summarize current advances in scientific studies about lemurs (Lemurology)”. It also addresses the conservation challenges these animals face, emphasizing the urgent need for effective protective measures.
Onja H. Razafindratsima +21 more
wiley +1 more source