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Online since: October 2015
Authors: Augustin Varga, Jaroslav Merc
The rapid cooling of the slag causes immediate crystallization into a black, dense, fine-grained glassy mass that crumbles into small angular parts.
45. 6.32 58.62 2.42 1.06 25.40 0.07 0.22 0.86 0.61 2.78 1611 1574 37 46. 7.98 53.26 2.78 1.10 27.49 0.12 0.32 0.95 0.69 1.76 1563 1557 6 47. 10.13 47.77 4.09 1.70 24.01 0.09 0.23 0.84 0.72 2.38 1410 1447 -37 48. 8.37 55.62 3.80 1.55 26.38 0.12 0.19 0.96 0.98 2.31 1497 1536 -39 49. 5.70 59.23 2.57 1.48 26.00 0.07 0.15 1.02 0.98 2.44 1570 1569 1 50. 8.03 52.39 2.84 1.38 24.97 0.10 0.24 0.81 1.09 2.18 1502 1499 3 51. 5.67 57.02 2.92 1.47 25.99 0.07 0.32 0.95 0.62 2.36 1546 1538 8 52. 7.66 53.09 2.25 1.29 29.55 0.11 0.31 0.98 0.60 2.18 1570 1580 -10 53. 8.13 56.75 2.87 1.26 25.77 0.15 0.17 1.02 0.71 2.36 1547 1539 8 54. 7.04 56.34 3.44 1.26 24.28 0.09 0.41 0.88 0.70 2.42 1479 1491 -12 55. 8.94 56.86 3.06 1.70 26.71 0.11 0.31 1.00 0.83 1.86 1481 1522 -41 56. 8.14 55.86 4.12 1.42 22.90 0.10 0.28 0.93 0.46 2.50 1451 1477 -26 57. 6.15 58.37 3.26 1.32 24.73 0.08 0.40 0.97 0.44 2.82 1534 1508 26 Fig. 5 Difference between calculated Tcal and analysed Tanl value of fluid temperature, evaluated number
Online since: January 2012
Authors: Qian Feng Fang, Wei Guo Wang, Gang Ling Hao
The crystal structure of the La2/3-xLi3xTiO3 compounds has a three-dimensional frame work corner-sharing TiO6 octahedra and a large number of defects at the A site while the exact position of the lithium cation is not still clear.
It has also been successfully applied to the correlated relaxation in metals and oxide ceramics, such as Snoek-Köster relaxation [9], grain boundary relaxation [10], and oxygen ion diffusion [11] and lithium ion diffusion in garnet like Li5La3M2O12 (M=Ta, Nb) [7].
Online since: July 2014
Authors: Xue Ren Dong, Yu Zhen Ma, Qiu Yue Cui, Tong Hui Liu
The selection of the high speed cutting tool materials the workpiece material the selection of the tool material roughing finishing cast aluminum alloy K10, Si3N4 PCD, Si3N4 cast iron metal ceramic, K cemented carbide CBN, Si3N4 structural steel metal ceramic, PVD coated cutting tool, high TiC cemented carbide added Ta and Ni CBN, ceramic high strength steel, hardened steel high TiC cemented carbide added Ta and Ni metal ceramic, CBN stainless steel, high temperature alloy ultrafine P cemented carbide fine grain, ultrafine P cemented carbide In addition, tool structure, accuracy, dynamic balance and chip breaking and removal ability will impact directly on the high speed cutting in the surface quality, the production efficiency and the tool life.
In high speed machining, we should try to reduce the tool’s rapid change, select a single path cutting mode for milling, not interrupt the process and cutting tool path and try to minimize the number of cutting tool, in order to obtain relatively stable cutting process.
Online since: August 2008
Authors: Lírio Schaeffer, Andreas Schaeffer, Dalva Maria Pereira Padilha, Alexandre Futterleib, Alexandre Baroni
With this technique it is possible to control porosity by using different grain sizes and variations in sintering temperature.
Fig. 9- Sintered prototype 3 weeks Fig. 10 - Milled prototype 3 weeks after after implant implant Conclusion  The MIM process proved technically feasible as an alternative for the production of sintered parts for dental implants, highlighting the reduction in the number of manufacturing stages, and cost reduction for purchasing raw materials compared to conventional processes
Online since: January 2011
Authors: Mohammad Reza Saghi Beyragh, Shahin Khameneh Asl, Neda Faale Noori
The HVOF gun is raster across the substrate to build up the required coating thickness in a number of passes [1].
After heat treatment some new phases were produced in the amorphous area and WC grains were partly dissolved and mixed with nickel matrix and produced new fine crystalline and dendrite phases [16].
Online since: May 2011
Authors: Yang Dong Hu, Qin He Sun, Lian Ying Wu, Yong Gang Li
The period of production is discretized into a number of time intervals and single power value is used in each time interval.
(In Chinese) [10] Zhang Niandong: Technology of Silicon Carbide Grain (China Machine Press, Beijing 1982.
Online since: October 2010
Authors: Jinn Jong Sheu, Chin Wei Liu, Dong Mei Xu
(6) where n is the element numbers divided for axial depth of cut, kts is the tangential shearing constant in N/mm2, krs and kas are the ratios of radial and axial force components with respect to kts, ktp is the tangential ploughing constant in N/mm, and krp and kap are the ratios of radial and axial ploughing constants.
The matrix material of the 4-flute flat end cutter coated with TiAlN is superfine grained tungsten carbide (E = 600 GPa) with two types of helical angles, 35 and 45 degrees, respectively.
Online since: July 2012
Authors: Mei Mei Zhang, Xue Na Yang, Wen He, Jian An Liu
A number of authors reported the synthesis of ferrimagnetic glass-ceramics in many systems, for example, SiO2—CaO—Fe2O3[6], SiO2—CaO—Fe2O3—B2O3—P2O5[7,8], SiO2—Na2O—CaO—P2O5—FeO—Fe2O3[9], CaO—P2O5—SiO2—MgO—MnO2—Fe2O3[10], SiO2—CaO—Fe2O3—ZnO[11], Li2O—MnO2—CaO—P2O5—SiO2[12].
For the crystal, the saturation magnetization increases with increasing crystal grain size, but the coercive force decreases[16].
Online since: June 2025
Authors: Zulyaden Zulyaden, Veranita Veranita, Joli Supardi, Maisyura Balqis
Eksperimen Variable NO Comparison of Aggregate with Binder Comparison of Activators Na2SiO3: NaOH Number of Test Specimens Produced 1. 75 : 25 3 : 1 1 5 : 2 1 2. 70 : 30 3 : 1 1 5 : 2 1 3. 65 : 35 3 : 1 1 5 : 2 1 4. 75 : 25 3 : 1 1 5 : 2 1 Quantity 8 Exp: 1,2,3Aggregate = Coarse aggregate + fine aggregate + shellfish shell 1,2,3Binder = Fly ash + rice husk ash and alkaline 4Aggregate = Coarse aggregate + fine aggregate 4Binder = Fly ash and alkaline a.
Graph Coarse Aggregate Gradation In Figure 2, the test results show that the fine aggregate gradation curve that has grain gradations is in two boundary curves.
Online since: November 2017
Authors: Chang Woo Lee, Dong Geun Lee, Chang Lim Kim, Young Sin Choi, Gun Hee Kim, Byoung Soo Lee
The number of slip systems in HCP structure is smaller than other alloys with FCC and BCC structure.
Yield Strength (MPa) Ultimate Tensile Strength (MPa) Elongation (%) Fatigue Limit (MPa) EBM CP Ti 661 711 24 330 Casting CP Ti (Ref.) [11] 429±20 544±21 18±1.8 - Casting CP Ti (Ref.) [12] 527±46 641±52 19.7±1.3 350 This phenomenon could explain through the grain type by the rapid cooling according to the high energy beam irradiation [13].
Showing 27701 to 27710 of 28673 items