11 results match your criteria Ceramics International[Journal]

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Grinding of alumina ceramic with microtextured brazed diamond end grinding wheels.

Ceram Int 2020 Aug 25;46(12):19767-19784. Epub 2020 May 25.

Guangdong Institute of Material and Processing, Guangzhou, 510650, PR China.

Brazed monolayer diamond grinding wheels have advantages of a high abrasive bonding strength, high protrusion, and a large chip disposal space. However, it is difficult to prepare ordered and fine-grained brazed diamond grinding wheels. This study presents a new method for grain-arranged, brazed diamond grinding wheels with microtextures with similar performance to ordered and fine-grained brazed diamond grinding wheels. Read More

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http://dx.doi.org/10.1016/j.ceramint.2020.05.009DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7263301PMC

A review on MnZn ferrites: Synthesis, characterization and applications.

Ceram Int 2020 Apr 7. Epub 2020 Apr 7.

Centre for Nanotechnology, Amity University Haryana, Gurgaon, Haryana, 122413, India.

Researchers are taking great interest in the synthesis and characterization of MnZn ferrites due to their wide range of applications in many areas. MnZn ferrites are a class of soft magnetic materials that have very good electrical, magnetic and optical properties. The properties of MnZn ferrites include high value of resistivity, permeability, permittivity, saturation magnetization, low power losses and coercivity. Read More

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http://dx.doi.org/10.1016/j.ceramint.2020.03.287DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7138391PMC

Short fiber reinforced 3d printed ceramic composite with shear induced alignment.

Ceram Int 2017 Oct;43(15):11766-11772

Department of Mechanical Engineering & Mechanics, Lehigh University, Bethlehem, PA 18015, USA.

This paper accounts for utilization of shear induced alignment method during ceramic stereolithography. Lateral oscillation mechanism, combined with 3d printed wall pattern, was employed to generate necessary shear to align fiber in desired direction. First, semicircular channel pattern was printed to assess the effect of difference between wall direction and oscillation direction on the fiber alignment. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S02728842173121
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http://dx.doi.org/10.1016/j.ceramint.2017.06.012DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6191193PMC
October 2017
10 Reads
2.605 Impact Factor

Speed sintering translucent zirconia for chairside one-visit dental restorations: Optical, mechanical, and wear characteristics.

Ceram Int 2017 Oct 19;43(14):10999-11005. Epub 2017 May 19.

Department of Biomaterials and Biomimetics, New York University College of Dentistry, New York, NY 10010, USA.

The fabrication of zirconia dental restorations is a time-consuming process due to traditional slow sintering schemes; zirconia (Y-TZP) produced by these conventional routes are predominantly opaque. Novel speed sintering protocols have been developed to meet the demand for time and cost effective chairside CAD/CAM-produced restorations, as well as to control ceramic microstructures for better translucency. Although the speed sintering protocols have already been used to densify dental Y-TZP, the wear properties of these restorations remain elusive. Read More

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http://dx.doi.org/10.1016/j.ceramint.2017.05.141DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5662116PMC
October 2017
6 Reads

Sensitivity of novel silicate and borate-based glass structures on bioactivity and degradation behaviour.

Ceram Int 2017 Oct;43(15):12651-12657

School of Mechanical and Systems Engineering, Newcastle University, Claremont Road, Newcastle upon Tyne, UK.

Three novel glass compositions, identified as NCL2 (SiO-based), NCL4 (BO-based) and NCL7 (SiO-based), along with apatite-wollastonite (AW) were processed to form sintered dense pellets, and subsequently evaluated for their bioactive potential, resulting physico-chemical properties and degradation rate. Microstructural analysis showed the carbonated hydroxyapatite (HCA) precipitate morphology following SBF testing to be composition-dependent. AW and the NCL7 formulation exhibited greater HCA precursor formation than the NCL2 and NCL4-derived pellets. Read More

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http://dx.doi.org/10.1016/j.ceramint.2017.06.146DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5586035PMC
October 2017
6 Reads

THERMAL RESIDUAL STRESSES IN BILAYERED, TRILAYERED AND GRADED DENTAL CERAMICS.

Ceram Int 2017 Mar 1;43(4):3670-3678. Epub 2016 Dec 1.

Ceramic and Composite Materials Research Group (CERMAT), Federal University of Santa Catarina (UFSC), Campus Trindade, Florianópolis/SC, Brazil; School of Dentistry (DODT), Post-Graduation Program in Dentistry (PPGO), Federal University of Santa Catarina, Campus Trindade, 88040-900, Florianópolis/SC, Brazil.

Layered ceramic systems are usually hit by residual thermal stresses created during cooling from high processing temperature. The purpose of this study was to determine the thermal residual stresses at different ceramic multi-layered systems and evaluate their influence on the bending stress distribution. Finite elements method was used to evaluate the residual stresses in zirconia-porcelain and alumina-porcelain multi-layered discs and to simulate the 'piston-on-ring' test. Read More

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http://dx.doi.org/10.1016/j.ceramint.2016.11.209DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5289668PMC
March 2017
6 Reads

The bending stress distribution in bilayered and graded zirconia-based dental ceramics.

Ceram Int 2016 Jul 1;42(9):11025-11031. Epub 2016 Apr 1.

Ceramic and Composite Materials Research Group (CERMAT), Federal University of Santa Catarina (UFSC), Campus Trindade, Florianópolis/SC, Brazil; School of Dentistry (DODT), Post-Graduation Program in Dentistry (PPGO), Federal University of Santa Catarina, Campus Trindade, 88040-900, Florianópolis/SC, Brazil.

The purpose of this study was to evaluate the biaxial flexural stresses in classic bilayered and in graded zirconia-feldspathic porcelain composites. A finite element method and an analytical model were used to simulate the piston-on-ring test and to predict the biaxial stress distributions across the thickness of the bilayer and graded zirconia-feldspathic porcelain discs. An axisymmetric model and a flexure formula of Hsueh et al. Read More

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http://dx.doi.org/10.1016/j.ceramint.2016.03.245DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5241077PMC
July 2016
26 Reads

Experimental and finite element study of residual thermal stresses in veneered Y-TZP structures.

Ceram Int 2016 May;42(7):9214-9221

Department of Biomaterials and Biomimetics, New York University College of Dentistry, 433 First Avenue, New York, NY 10010, USA.

The main complications of zirconia-based laminated systems are chipping and delamination of veneering porcelain, which has been found to be directly associated with the development of residual thermal stresses in the porcelain layer. This study investigates the effects of cooling rate and specimen geometry on the residual stress states in porcelain-veneered zirconia structures. Bilayers of three different shapes (bars, semi-cylindrical shells, and arch-cubic structures) with 1. Read More

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http://dx.doi.org/10.1016/j.ceramint.2016.03.018DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4831075PMC
May 2016
19 Reads

Characterization of three commercial Y-TZP ceramics produced for their high-translucency, high-strength and high-surface area.

Ceram Int 2016 Jan;42(1 Pt B):1077-1085

New York University College of Dentistry, Department of Biomaterials and Biomimetics, 433 First Avenue, Room 810, New York, NY 10010, USA.

Developing yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) with high strength and translucency could significantly widen the clinical indications of monolithic zirconia restorations. This study investigates the mechanical and optical properties of three Y-TZP ceramics: High-Translucency, High-Strength and High-Surface Area. The four-point bending strengths (mean ± standard error) for the three Y-TZP ceramics ( = 10) were 990 ± 39, 1416 ± 33 and 1076 ± 32 MPa for High-Translucency, High-Strength and High-Surface Area, respectively. Read More

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http://dx.doi.org/10.1016/j.ceramint.2015.09.033DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4671392PMC
January 2016
23 Reads

Biologic Potential of Calcium Phosphate Biopowders Produced via Decomposition Combustion Synthesis.

Ceram Int 2015 Jul;41(6):7735-7744

University of Colorado School of Medicine, Department of Orthopaedics, Aurora, Colorado, 80045, USA.

The aim of this research was to evaluate the biologic potential of calcium phosphate (CaP) biopowders produced with a novel reaction synthesis system. Decomposition combustion synthesis (DCS) is a modified combustion synthesis method capable of producing CaP powders for use in bone tissue engineering applications. During DCS, the stoichiometric ratio of reactant salt to fuel was adjusted to alter product chemistry and morphology. Read More

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http://dx.doi.org/10.1016/j.ceramint.2015.02.105DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4448779PMC
July 2015
2 Reads

Preparation and properties of hydroxyapatite filters for microbial filtration.

Ceram Int 2007 Apr 18;33(3):483-489. Epub 2006 Jan 18.

State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.

Preparation and properties of two kinds of hydroxyapatite filters, filter cloths and porous ceramics, were investigated. The filter cloth was prepared by depositing nanosize ceramic hydroxyapatite on a cotton fabric. The porous ceramic with pore size of several micrometers or less was fabricated by using water soluble starch as a pore former, and its permeability was controlled by adding insoluble starch. Read More

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http://dx.doi.org/10.1016/j.ceramint.2005.10.014DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7115728PMC
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