Results 81 to 90 of about 143,288 (296)

The Influence of Exposure Energy Density on Porosity and Microhardness of the SLM Additive Manufactured Elements

Materials, 2018
Selective laser melting (SLM) is an additive manufacturing technique. It allows elements with very complex geometry to be produced using metallic powders. A geometry of manufacturing elements is based only on 3D computer-aided design (CAD) data.
J. Kluczyński, L. Śnieżek, K. Grzelak, J. Mierzyński   +3 more
semanticscholar   +1 more source

Exploring the Tribological Properties of 3D Printed Polymer Composites: An Experimental Study

Polymer Composites, EarlyView.
Tribological pin‐on‐disc testing of FDM‐manufactured pins. Pins made from PLA, TPU, bronze‐filled PLA (BRO), and their combinations were tested against a SAE 1020 steel disc to evaluate friction, wear, and surface morphology. ABSTRACT In recent years, additive manufacturing, especially 3D printing, has been gaining more space in the production of parts
G. Lasch, G. G. Sostizzo, G. S. Gehlen, M. T. Birosz, M. Andó, R. H. S. Souza, A. A. Rodrigues, J. C. Poletto, L. Y. Barros, N. F. Ferreira, P. D. Neis   +10 more
wiley   +1 more source

Evaluation of radiopacity and microhardness of composites submitted to artificial aging

Materials Research, 2007
The purpose of this study was to assess the radiopacity and microhardness of different types of resin-based composites (RBC - hybrid; microhybrid; flowable; cement and polyacid modified) before and after being submitted to artificial accelerated aging ...
Diogo Rodrigues Cruvinel, Lucas da Fonseca Roberti Garcia, Luciana Assirati Casemiro, Luiz Carlos Pardini, Fernanda de Carvalho Panzeri Pires-de-Souza   +4 more
doaj   +1 more source

Crosslinked Gelatin‐Polycaprolactone Scaffolds: Balancing Biocompatibility and Inflammatory Response for Tissue Engineering Applications

Polymer Engineering &Science, EarlyView.
Crosslinked gelatin‐functionalized PCL scaffolds exhibited enhanced hydrophilicity, structural stability, and porous interactions. In vitro assays demonstrated improved osteoblast adhesion, viability, and proliferation without cytotoxicity, while in vivo evaluation showed no adverse inflammatory response, supporting their potential application in ...
Fernanda Ramírez‐Ruiz, Israel Núñez‐Tapia, Lucía Pérez‐Sánchez, María Cristina Piña‐Barba, Irving Sanchez‐Leal, Marco Antonio Alvarez‐Perez, Iriczalli Cruz‐Maya, Janeth Serrano‐Bello   +7 more
wiley   +1 more source

Effect of nano-hydroxyapatite toothpaste on microhardness ofartificial carious lesions created on extracted teeth

Journal of Dental Research, Dental Clinics, Dental Prospects, 2017
Background. Many types of toothpastes contain substances that can remineralize initial enamel caries. This study aimed to assess the effect of nano-hydroxyapatite (NHA) on microhardness of artificially created carious lesions. Methods.
A. Ebadifar, M. Nomani, S. Fatemi
semanticscholar   +1 more source

Overcoming Challenges in 3D Printing of Polyolefins and Their Composites: A Review on Strategies for Improved Printability and Performance

Polymer Engineering &Science, EarlyView.
This review integrates the molecular fundamentals, key challenges, and mitigation strategies in polyolefin 3D printing, focusing on shrinkage, warpage, and adhesion control. It highlights material design approaches using recycled polyolefins and functional fillers to improve printability, mechanical properties, and sustainability in additive ...
Malik Hassan, Philip McMorran, Marwan Eid, Julia Blair, Amar K. Mohanty, Manjusri Misra   +5 more
wiley   +1 more source

Effect of Sucrosomial® Iron and Iron Drop Diluted with Natural Fruit Juice on Microhardness of Primary Enamel

Frontiers in Dentistry, 2022
Objectives: Considering the high prevalence of consumption of iron drops, and the resultant reduction in microhardness of primary enamel, this in vitro study aimed to assess the effects of Sucrosomial® iron and iron drop diluted with natural fruit juice
Nika Sahebnazar, Sara Tavassoli-Hojjati, Saba Aghaei   +2 more
doaj  

Study the Effects of Two Multivitamin Syrups on the Properties of the Composite Surface [PDF]

Al-Rafidain Dental Journal
The current study aimed to determine the impact of multivitamin syrups applied daily on the surface microhardness and roughness of composite restorative materials.
Aseel Taha Khaudhair, Saif Saad Kamil, Sohaib Qais Alwan, Sana Mahroos Al-Shammari   +3 more
doaj   +1 more source

In situ anticaries efficacy of dentifrices with different formulations – A pooled analysis of results from three randomized clinical trials [PDF]

, 2018
Objectives Data generated from three similar in situ caries crossover studies presented the opportunity to conduct a pooled analysis to investigate how dentifrice formulations with different fluoride salts and combinations at concentrations of 1400 ...
Bosma, Mary Lynn, Butler, Andrew, Constantin, Paul, Creeth, Johnathan, Hara, Anderson T., Lippert, Frank, Newby, Evelyn, Zero, Domenick T.   +7 more
core   +1 more source

Influence of Higher Tramp Element Level on the Weldability of Automotive Steels

steel research international, EarlyView.
The use of green recycled steels is constantly expanding in the automotive industry. The increase in tramp elements resulting from the recycling of steel is problematic. Tramp elements can lead to a negative influence on the weldability. To understand the influence, the welding properties of three green steels are characterized. The potential limits of
Elias Gebhard Vogt, Patrick Veyel, Lars Gebel, Christian Meyer, Robert Thomas, Michael Thomas, Christoph Herrmann   +6 more
wiley   +1 more source