Results 51 to 60 of about 398,241 (340)

The Measurement of Surface Hardness of Mineral Trioxide Aggregate Material (MTA) using Two Techniques of Condensation. [PDF]

Al-Rafidain Dental Journal, 2008
Aims: This in vitro study was conducted to exam the effect of condensation technique on surface hardness of MTA. Materials and Methods: In this study, 20 acrylic blocks were used.
Maha A. AlMurad
doaj   +1 more source

Effect of the over-ageing treatment on the mechanical properties of AA2024 aluminum alloy. [PDF]

, 2012
The evolution of the hardness of the over-ageing AA2024 alloy scale was followed by measurements of Vickers hardness. The nanoindentation is adapted to the determination of elastoplastic properties (hardness and Young’s modulus) of the matrix and also of
Abrudeanu, Marioara, Alexis, Joël, Lacroix, Loïc, Petit, Jacques-Alain, Radutoiu, Nicoleta, Rizea, Vasile, Vulpe, Sanda   +6 more
core  

Investigating the Effects of Build Height on Mechanical Behavior of Large‐Scale Laser Wire Directed Energy Deposited Nickel Titanium Alloy

Advanced Engineering Materials, EarlyView.
Laser wire directed energy deposition process was leveraged to fabricate large scale NiTi alloy wall. Evaluation of build‐height‐dependent tribo‐mechanical properties revealed significant differences in location specific sample characteristics. The middle region achieved optimal performance (superior wear resistance, balanced strength‐ductility ...
Hyunsuk Choi, Prayag Burad, Piash Bhowmik, Vishal Mahey, Yashwanth Bandari, Sougata Roy   +5 more
wiley   +1 more source

Selective laser melting of WC-Co reinforced AISI 1045 steel composites: microstructure characterization and mechanical properties

Journal of Materials Research and Technology, 2022
Due to the limited wear resistance, AISI 1045 steel has limited applications in harsh environments, and the friction effect leads to premature scrapping.
Shifeng Liu, Yunzhe Li, Yan Wang, Yingkang Wei, Liangliang Zhang, Jianyong Wang, Xin Yang   +6 more
doaj   +1 more source

Structural, elastic, and electronic properties of newly discovered Li2PtSi3 superconductor: Effect of transition metals

, 2016
First-principles calculations within the density functional theory (DFT) with GGA-PBE exchange-correlation scheme have been employed to predict the structural, the elastic and the electronic properties of newly discovered lithium silicide superconductor,
Alam, M. A., Hadi, M. A., Islam, A. K. M. A., Naqib, S. H., Nasir, M. T., Parvin, F., Roknuzzaman, M., Zilani, M. A. K.   +7 more
core   +2 more sources

Microstructural Evolution and Mechanical Performance of Plasma‐Assisted Hybrid Friction Stir Welded Dissimilar Aluminum–Copper Joints

Advanced Engineering Materials, EarlyView.
Plasma‐assisted hybrid friction stir welding of dissimilar AlCu joints employs localized plasma preheating to balance heat input and enhance plastic flow. The optimized process reduces axial force by up to 35%, refines the microstructure, and achieves ≈96% joint efficiency.
Deepak Kumar Yaduwanshi, Pankaj Shrivastava, Ganesh Chouhan, Velaphi Msomi   +3 more
wiley   +1 more source

A Three points bending ultrasonic fatigue resistance and vickers hardness of Tlalpujahua clay thermally treated

Fracture and Structural Integrity
Ultrasonic fatigue at an operating frequency of 20 kHz was conducted on thermally treated clay bricks at 500, 750, and 1000 °C with a holding time of 5 h, using a three-point bending setup to assess their fatigue endurance.
Hipólito Magdiel Venegas Montaño, Pablo Genaro Martínez Torres , Victor López Garza , Luis Miguel Torres Duarte, Gonzalo Mariano Domínguez Almaraz   +4 more
doaj   +3 more sources

Thermal-Mechanical Properties of Polyurethane-Clay Shape Memory Polymer Nanocomposites [PDF]

, 2010
Shape memory nanocomposites of polyurethane (PU)-clay were fabricated by melt mixing of PU and nano-clay. Based on nano-indentation and microhardness tests, the strength of the nanocomposites increased dramatically as a function of clay content, which is
Chen, Zhen Guo,, Fu, Yong Qing,, Hosson, Jeff T.M. De,, Huang, Wei Min,, Kraft, Arno,, Pei, Yu Tao,, Reuben, R.L.,, Xu, Bin,   +7 more
core   +5 more sources

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

Advanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud, Jakob Gruber, Hakan Göçerler, Pierluigi Bilotto, Christian Gierl‐Mayer, Elham Loni, Michael Naguib, Carsten Gachot   +7 more
wiley   +1 more source

The influence of geometrical tolerances of Vickers indenter on the accuracy of measured hardness [PDF]

International Journal of Metrology and Quality Engineering, 2012
This paper reports work carried out to determine the influence of the Pyramidal indenter geometrical errors and tolerances on the accuracy of Vickers hardness measurements.
El-Sherbiny M., Hegazy R., Ibrahim M., Abuelezz A.   +3 more
doaj   +1 more source