Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Chao Xu"'
Publikováno v:
Applied Surface Science. 480:349-360
Although nano polycrystalline diamond (NPD) is found with hardness equal to, or even higher than that of single crystal diamond, there are still some controversies about its mechanical responses as well as the plastic deformation mechanisms during th
Publikováno v:
Journal of Cleaner Production. 210:231-237
The purpose of this work was to investigate the feasibility of using black tea powder produced through green technology (plant-source material and biotechnology) as multifunctional admixture for the hemihydrate gypsum. The hemihydrate gypsums were mi
Publikováno v:
Ceramics International. 44:22121-22128
Although the recently synthesized nanotwinned diamond was found with Vickers hardness exceeding 200 GPa, almost twice the commonly quoted hardness of single crystal diamond, there are still some controversies about the twin-size effects on its hardne
Publikováno v:
Materials Science and Engineering: A. 737:223-229
A strong and ductile Mg-8Al-1Zn-1Ca-0.3Mn (wt%) alloy sheet has been successfully developed via commercial rolling process. The ultimate tensile strength, 0.2% proof stress, and elongation to failure along the rolling direction of the sheet are 371 M
Publikováno v:
Ore Geology Reviews. 100:168-182
The Yandong porphyry Cu deposit in the Eastern Tianshan terrane is the largest in Xinjiang, NW China (metal reserve: 2.3 Mt Cu @ 0.67%). Three periods and six alteration and mineralization stages were identified in this study, i.e., Porphyry period (
Autor:
Marco J. Starink, W.T. Sun, Xiao Guang Qiao, Mingyi Zheng, Chao Xu, Shigeharu Kamado, Nong Gao, Houwen Chen, Xiaojun Zhao
Publikováno v:
Acta Materialia. 151:260-270
In this study, the ageing behaviour of a nanostructured Mg-8.2Gd-3.8Y-1.0Zn-0.4Zr (wt.%) alloy produced by solution treatment followed by high pressure torsion (HPT) was systematically investigated using hardness testing, high resolution high-angle a
Publikováno v:
Journal of Non-Crystalline Solids. 481:148-151
The temperature dependence of initial permeability (μi-T), the average grain size (D), the Curie temperature of amorphous phase (Tcam) of a series of annealed (Fe0.5Co0.5)73.5Nb3Si13.5Cu1B9 − xAlx (x = 0, 1, 2, 3) alloys were investigated. The Cur
Publikováno v:
Journal of Materials Science & Technology. 34:277-283
A high strength Mg-5.1Zn-3.2Y-0.4Zr-0.4Ca (wt%) alloy containing W phase (Mg3Y2Zn3) prepared by permanent mold direct-chill casting is indirectly extruded at 350 °C and 400 °C, respectively. The extruded alloys show bimodal grain structure consisti
Autor:
R. Ajima, Takayoshi Sasaki, Kazuhiro Hono, Chao Xu, Shigeharu Kamado, K. Shimizu, Taiki Nakata, Y. Matsumoto
Publikováno v:
Materials Science and Engineering: A. 712:12-19
The chemical composition of a Mg-1.1Al-0.33Ca-0.44Mn (wt%) alloy, AXM10304, has been optimized for high speed extrusion. The extrudability is substantially improved from 24 m/min to 60 m/min by slightly reducing the Ca content from 0.33 wt% to 0.24 w
Publikováno v:
Materials Science and Engineering: A. 713:234-243
The microstructure evolution and mechanical properties of as-extruded Mg-11.5Gd-4.5Y-0.3Zr (wt%) alloy with Zn and Nd additions were investigated. The addition of Zn inhibits the dynamic recrystallization (DRX) due to the presence of the long-period