Results 41 to 50 of about 22,923,337 (261)

Headdress, Ritual and Gender Symbols (reconstruction based on materials of the bronze age from the Novye Yabalakly 1 burial ground)

Археология евразийских степей, 2022
A bronze jewelry set was found during excavations of a woman’s and a child’s grave at the Novye Yabalakly 1 burial ground (located in the Republic of Bashkortoston on the right bank of the Dema River), attributed to the Srubnaya culture (third quarter of
Emma R. Usmanova, Viktor K. Merts, Elmira F. Gyul, Mikhail A. Antonov   +3 more
doaj   +1 more source

Synthesis of components for composite material of electrical contacts with unique properties for high-current electrical apparatus with arc-free switching

Фізика і хімія твердого тіла
Experimental research has determined the optimal composition of components for a composite material used in electrical contacts with unique properties designed for high-current electrical apparatus that perform switching without arc formation.
N. Hablovska, T. Pavlenko, A. Kloc-Ptaszna, Ł. Krzemiński, G. Matula, D. Łukowiec, M. Kononenko, B. Hablovskyi   +7 more
doaj   +1 more source

Influtnce analysis of 09Г2С and 30MnB5 steels thermo cyclic treatment on strength characteristics of road construction machines working bodies

Вестник СибАДИ, 2021
Introduction. The ways of increasing the reliability of road construction machinery operation are considered. As a result, an option is proposed to replace the used 09Г2С steel with 30MnB5 boron steel. Using the example of a motor grader blade, the force
A. P. Scherbakov, A. E. Pushkarev, T. V. Vinogradova   +2 more
doaj   +1 more source

Metallographic analysis and kinetic equation of the graphitization process of graphitized steel

工程科学学报, 2022
Graphitized steel can have good machinability and formability, or high strength through controlling microstructure. The graphitization process is formation of graphite particles in graphitized steel, which is key to control the microstructure and ...
Yong-jun ZHANG, Xin-peng LI, Jiu-hua WANG, Jing LIU, Jing-Tao HAN   +4 more
doaj   +1 more source

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

Advanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart, Jonas Schmidt, Anastasiya Toenjes, Johanna Eisenträger   +3 more
wiley   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

An Analysis of the Metal Connection Using Metallographic Investigation

Metallurgist, 2023
Pistons are mainly made of Al-Si alloys. The first piston channel’s highly loaded diesel engines use a ring carrier. In this case, two different materials (aluminum alloy and austenitic cast iron) must establish an excellent metallic bond (intermetallic bonding layer).
S. Manasijević, Z. Zovko Brodarac, N. Dolić, M. Djurdjevic, A. Bukvić   +4 more
openaire   +1 more source

Metallographic Investigation of the Bronze Sword from Vértesszőlős

Metallography Microstructure and Analysis, 2023
The area of Vértesszőlős was a populated area during the wide period of the Bronze Age. Artifacts from different cultures, and among them, many bronze objects were found. Most are ornaments, but tools and weapons have also been unearthed.
S. Gyöngyösi, Géza Szabó, P. Barkóczy, Julianna Cseh   +3 more
semanticscholar   +1 more source

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

Integrated Lead/Iodine Management for Sustainable Perovskite Solar Modules

Advanced Materials, EarlyView.
Perovskite solar modules face environmental risks from lead and iodine leakage. A dual‐function adsorbent—porphyrin‐modified whitlockite nanocomposites—effectively captures iodine and Pb2+, even under severe damage. Combined with a semi‐closed recycling process, it recovers 96.9% high‐purity PbI2 and reduces residual Pb2+ to <10 ppb, offering an ...
Guo‐Bin Xiao, Niansheng Xu, Zhen‐Yang Suo, Sibei Mai, Dandan Hu, Feng Gao, Jing Cao   +6 more
wiley   +1 more source