Results 71 to 80 of about 78,062 (293)

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Theobromine Effects on Enamel Surface Microhardness: In Vitro

Journal of Dentistry Indonesia, 2013
Dental caries is still a dental health problem in Indonesia. Fluoride, one of the dental caries prevention material, but its safety and the danger of fluorosis is still debated. Theobromine is an alkaloid compound contained in cocoa beans. Theobromine is
Grace Syafira, Rina Permatasari, Nina Wardani   +2 more
doaj   +1 more source

The influence of position in overlap joints of Mg and Al alloys on microstructure and hardness of laser welds [PDF]

, 2013
Structure and properties of laser beam welding zone of dissimilar materials, AZ31 magnesium alloy and A5754 Aluminum alloy, are investigated. The microstructure and quality of the Mg/Al weld were studied by metallography, microhardness and optical ...
Fatih H., H. Mhiri, J. E. Masse, K. Abderrazak, M. Autric, Nakada K., Peng L., S. Bannour, S. Mattei, Stodolsky R., Yoo M. S.   +10 more
core   +6 more sources

Ceramic Particle‐Reinforced Medium‐Entropy Alloys With Outstanding Mechanical Properties Prepared by Novel Micro‐LPBF

Advanced Functional Materials, EarlyView.
An innovative medium entropy alloy (MEA) composite material was fabricated via micro laser powder bed fusion (μ‐LPBF) with appropriate nano‐ceramic particles doping and exhibited markedly improved overall performance, including synergistically enhanced strength and ductility, increased hardness and compressive strength, improved wear resistance and ...
Zhonglin Shen, Mingwang Fu
wiley   +1 more source

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

On the Interface Between LENS® Deposited Stainless Steel 304L Repair Geometry and Cast or Machined Components [PDF]

, 2004
Laser Engineered Net Shaping™ (LENS®) is being evaluated for use as a metal component repair/modification process. A component of the evaluation is to better understand the characteristics of the interface between LENS deposited material and the ...
Gill, D.D., Griffith, M. L., Harris, M. F., Robino, C. V., Smugeresky, J. E.   +4 more
core   +2 more sources

Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review

Advanced Functional Materials, EarlyView.
Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan, Mohammad Mehrali, Jaka Tušek, Shiva Mohajerani, Xiebin Wang, Dermot Brabazon, Mohammad Elahinia, Mehrshad Mehrpouya   +7 more
wiley   +1 more source

Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review

Advanced Healthcare Materials, EarlyView.
Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro, Mario González‐Quintas, Mónica Fernández‐Arias, Jesús del Val, Félix Quintero, Rafael Comesaña, Fernando Lusquiños, Julian R. Jones, Juan Pou   +8 more
wiley   +1 more source

Changes in Bleached Enamel Microhardness After Application of Fluoride and CPP-ACP

Journal of Islamic Dental Association of Iran, 2012
Background and Aim : Tooth bleaching decreases enamel microhardness. The aim of this study was to evaluate the changes in microhardness of bleached enamel after applying fluoride and CPP-ACP (casein phosphopeptide –amorphous calcium phosphate ...
Mohammad reza Maleki-Pour, Farzaneh Shirani, Parvin Mirzakoochaki, Zahra Fazel Kalbasi   +3 more
doaj  

Microhardness of Semicrystalline Polymers [PDF]

, 1986
A new approach to justify the dependence of microhardness of semicrystal-line polymers, specially polyethylene, upon average crystal thickness is given. A basic model of deformation under local compression is proposed in terms of the heat dissipated by the plastically deformed crystals and the volume of crystals destroyed under the indenter.
Baltá Calleja, Francisco José, Kilian, H. G.   +1 more
openaire   +2 more sources