Results 71 to 80 of about 11,021 (288)

Intensive Widmannstätten Nanoprecipitates Catalyze SnTe With State‐of‐the‐Art Thermoelectric Performance

Advanced Materials, EarlyView.
The intensive lath‐shaped Ag2Te Widmannstätten nanoprecipitates are in situ generated in SnTe via AgPbSbTe3 alloying, and align with the formation of the parallel type and twin type interfaces. These Widmannstätten nanoprecipitates effectively scatter phonons to reduce the lattice thermal conductivity, resulting in a significantly enhanced average ZT ...
Tu Lyu, Xiao‐Lei Shi, Lipeng Hu, Moran Wang, Jiaying Peng, Siyuan Song, Haoran Luo, Wenyi Chen, Meng Li, Feng Rao, Zhi‐Gang Chen   +10 more
wiley   +1 more source

Analisa Pengaruh Variasi Temperatur Tuang Pada Proses Pengecoran Alumunium Kaleng Bekas Terhadap Sifat Kekerasan Dan Struktur Mikro

Patria Artha Technological Journal
The purpose of this study is to determine the effect of casting temperature variations on the hardness and microstructure of used aluminium cans. The casting method used in this research is the Lost Foam Casting method with a cast temperature variation ...
Sukirman A Togubu, Bambang Tjiroso, Ivan Junaidy Abd Karim   +2 more
doaj   +1 more source

Microstructure and corrosion properties of SiC/Al-Mg-Cu-Si-Sn composites

Science and Engineering of Composite Materials, 2017
The SiC/Al-Mg-Cu-Si-Sn composites with different quantities of SiC particles by volume were fabricated using hot-pressing sintering. The effects of SiC volume fraction on the microstructure, Vickers hardness, and corrosion behavior of the composites were
Shen Rujuan, Zhou Pengfei, Xiao Daihong, Song Min   +3 more
doaj   +1 more source

SEMI–AUTOMATED ASSESSMENT OF MICROMECHANICAL PROPERTIES OF THE METAL FOAMS ON THE CELL-WALL LEVEL

Acta Polytechnica CTU Proceedings, 2016
Metal foams are innovative porous material used for wide range of application such as deformation energy or sound absorption, filter material, or microbiological incubation carrier.
Nela Krčmářová, Jan Šleichrt, Tomáš Doktor, Daniel Kytýř, Ondřej Jiroušek   +4 more
doaj   +1 more source

Bioactive Glass Microscaffolds Fabricated by Two‐Photon Lithography

Advanced Materials, EarlyView.
Microstructuring of bioactive glasses offers great potential to influence cell behavior for bone tissue engineering. By utilizing two‐photon lithography of a nanocomposite and thermal post‐processing, single‐micron features and complex structures are achieved.
Leonhard Hambitzer, Jan Mathis Hornbostel, Louise Roolfs, Richard Prediger, Sebastian Kluck, Kai Zheng, Cornelia Lee‐Thedieck, Frederik Kotz‐Helmer   +7 more
wiley   +1 more source

MONOCLINIC ZIRCONIA SINTERED BODIES PREPARED VIA TWO-STEP SINTERING AND CHARACTERISATION OF SELECTED MECHANICAL PROPERTIES [PDF]

Ceramics-Silikáty, 2013
In the paper we examine some mechanical properties of the unstabilised zirconia sinters, such as Vickers hardness and fracture toughness. The sinters were prepared using two step sintering technique.
Wójtowicz B., Pyda W., Łabuz A.
doaj  

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  

High Fidelity Waveguides Through Vitreous Media Recomposition for Next Generation Photonic Devices

Advanced Optical Materials, EarlyView.
A newly designed aluminosilicate glass enables the fabrication of femtosecond laser‐written optical waveguides with ultra‐low propagation losses of −0.020 dB cm−1 at 1310 nm and −0.037 dB cm−1 at 1550 nm. Raman, Brillouin, and electron microscopy analyses reveal the mechanisms behind refractive index modifications, highlighting the role of glass ...
T Toney Fernandez, Andrew Ross‐Adams, Mark Bakovic, Jens Ulrich Thomas, Oliver Hochrein, Hadi Mahmodi, Irina Kabakova, Karen Privat, Michael Withford, Simon Gross   +9 more
wiley   +1 more source

Vickers Hardness Mechanical Models and Thermoplastic Polymer Injection-Molded Products’ Static Friction Coefficients

Journal of Manufacturing and Materials Processing
The surface mechanical properties of thermoplastics are crucially important for evaluating molded products’ vulnerability to scratching. Because surface mechanical properties reflect material performance directly in terms of durability and frictional ...
Tetsuo Takayama
doaj   +1 more source

Fatigue Limit Doubling in High‐Strength Martensitic Steel through Crack Embryo Engineering–Cyclic‐Training‐Driven Self‐Optimization

Advanced Science, EarlyView.
This study demonstrates a breakthrough in overcoming the conventional fatigue limit ceiling in high‐strength as‐quenched martensitic steel; maximum stress corresponding to the fatigue limit significantly increased from 675 to 1300 MPa with minimal sacrifice in tensile strength (1.5–1.6 GPa).
Kazuho Okada, Kaneaki Tsuzaki, Eri Nakagawa, Akinobu Shibata   +3 more
wiley   +1 more source