Results 91 to 100 of about 683,930 (242)

Co-grinding significance for calcium carbonate–calcium phosphate mixed cement. Part I: effect of particle size and mixing on solid phase reactivity [PDF]

, 2011
In part I of this study we aim to evaluate and control the characteristics of the powders constituting the solid phase of a vaterite CaCO3–dicalcium phosphate dihydrate cement using a co-grinding process and to determine their impact on cement setting ...
Combes, Christèle, Le Bolay, Nadine, Tadier, Solène, C. Rey, Rey, Christian, S. Tadier, N. Le Bolay, C. Combes   +7 more
core   +1 more source

Reactivity of Oxidized Porous Silicon with Calcium Ion in Aqueous Media: Stability, pH Behavior, and Host‐Guest Strategies

Small, EarlyView.
Oxidized porous silicon, composed of an elemental silicon porous skeleton coated with a silica shell, reacts with aqueous Ca2+ to generate a mixed silica–calcium silicate matrix that is remarkably efficient at trapping small molecules. With an emphasis on the engineering of controlled‐release drug delivery systems, this study identifies the factors ...
Ruhan Fan, Qinglin Yang, Michael J. Sailor   +2 more
wiley   +1 more source

Experimental biphasic Calcium Silicate/Calcium Phosphate cements for direct pulp capping

, 2014
Objectives: MTA cements are hydraulic calcium silicate cements currently used to preserve the vitality of the pulp tissue in direct pulp capping as able to set in the presence of blood and other biological fluids.
SPAGNUOLO, GIANRICO, RICCITIELLO, FRANCESCO, SIBONI F., PROCINO A, PRATI C, RENGO S., GANDOLFI MG   +6 more
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Martian‑Regolith Simulant Confined Nanogenerators for Wireless Tactile Sensing for Human‐Machine Interface

Small, EarlyView.
A Martian regolith‐simulant/PDMS triboelectric nanogenerator is developed as an ISRU‐inspired, self‐powered tactile sensor for wireless human–machine interface applications. ABSTRACT Achieving a sustainable energy system for space missions remains challenging due to the continued reliance on Earth‐supplied materials.
Shidhin Mappoli, Keval K. Sonigara, Martin Pumera   +2 more
wiley   +1 more source

Effect of calcium source on structure and properties of sol–gel derived bioactive glasses [PDF]

, 2012
The aim was to determine the most effective calcium precursor for synthesis of sol–gel hybrids and for improving homogeneity of sol–gel bioactive glasses. Sol–gel derived bioactive calcium silicate glasses are one of the most promising materials for bone
Jones, Julian R., Newport, Robert J., Turdean-Ionescu, Claudia Adriana, Smith, Mark E., Smith, M.E., Martin, R.A., Hanna, John V., Turdean-ionescu, Claudia A., Jones, J.R., Yu, Bobo, Turdean-Ionescu, C.A., Martin, Richard A., Yu, B., Hanna, J.V.   +13 more
core   +1 more source

Influence of natural fibers on physical, mechanical, and fire‐resistant properties of microconcrete

Structural Concrete, EarlyView.
Abstract This study examined the influence of natural fibers on the physical, mechanical, and fire‐resistant properties of microconcrete, in comparison with conventional polypropylene fibers used in cement composites. The fibers were characterized by FTIR and TGA/DSC to assess their composition and thermal stability, and FTIR was also performed after ...
Ivanka Netinger Grubeša, Sandra Juradin, Silvija Mrakovčić, Lidija Radovanović, Milica Vasić, Huseyin Bilgin   +5 more
wiley   +1 more source

Cold‐curing effects on the strength development and sulfuric acid resistance of basalt fiber‐reinforced hybrid alkali‐activated slag mortars

Structural Concrete, EarlyView.
Abstract Cold weather conditions impose substantial constraints upon the performance and long‐term resilience of concrete materials. Alkali‐activated slag (AAS) presents itself as a promising substitute, exhibiting sustained hydraulic activity even when exposed to ambient conditions characterized by low temperatures.
Zeynep Bahçeci, Murat Dener, Ahmet Benli, Bilal Balun   +3 more
wiley   +1 more source

Comparison of the Shear Bond Strengths of Two Different Restorative Materials to Biodentine and BIOfactor MTA [PDF]

Journal of Endodontics and Restorative Dentistry
Objectives: The aim of this study was to compare the shear bond strengths of glass ionomer cement and flowable composite to the calcium silicate-based materials- Biodentine and BIOfactor MTA.Materials and Methods: Biodentine and BIOfactor MTA were ...
Yunus Emre Yiğit, Merve Akbaş Çavuşoğlu, Makbule Bilge Akbulut   +2 more
doaj   +1 more source

Mechanical, rheological, and durability performances of GGBS‐based concrete for potential application to prestressed structures

Structural Concrete, EarlyView.
Abstract Ground granulated blast‐furnace slag (GGBS) is a widely used clinker substitute in concrete, recognized for its potential to significantly reduce environmental impacts. However, its application in prestressed concrete remains limited in several countries, mainly due to concerns regarding early‐age mechanical performance and long‐term ...
D. Rolando Baldiviezo, Leonardo Todisco, Cristina Argiz, Carmen Andrade, Amparo Moragues, Jaime C. Gálvez, Hugo Corres   +6 more
wiley   +1 more source

Cimentos ósseos acrílicos modificados com enchimento bioativo e biodegradável [PDF]

, 2012
Doutoramento em Engenharia BiomédicaO cimento ósseo acrílico é o único material utilizado para a fixação de próteses em cirurgias ortopédicas, surgindo como uma alternativa às técnicas não cimentadas.
Lopes, Poliana Pollizello
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