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Bibliographies thématiques / Co-Pressing

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Articles de revues

Littérature scientifique sur le sujet « Co-Pressing »

Auteur : Grafiati

Publié le 20 avril 2024

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Articles de revues sur le sujet "Co-Pressing"

1

Jia, Chengchang, Lan Sun, Hua Tang, and Xuanhui Qu. "Hot pressing of nanometer WC–Co powder." International Journal of Refractory Metals and Hard Materials 25, no. 1 (2007): 53–56. http://dx.doi.org/10.1016/j.ijrmhm.2005.11.003.

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SHI, XIAOLIANG, GANGQIN SHAO, XINGLONG DUAN, and RUNZHANG YUAN. "RESEARCH ON SHAPING TECHNOLOGY OF NANOCOMPOSITE WC-6Co POWDER AND PROPERTIES OF SINTERED COMPACTS." International Journal of Nanoscience 05, no. 02n03 (2006): 233–38. http://dx.doi.org/10.1142/s0219581x06004292.

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The influences of powder extrusion molding (PEM), die pressing and cold isostatic pressing (CIP) on the green compacts and the sintered compacts of nanocrystalline WC-6 Co composite powder produced by spray pyrogenation-continuous reduction and carburization technology were researched. The results showed that the pore volume distribution, density and scanning electron microscopy (SEM) morphologies of fractured surface of powder extrusion molding or die pressing followed by the cold isostatic pressing consolidation green compacts were better than that of powder extrusion molding or die pressing

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Liu, Tao, Xiangnan Wang, Xiaofang Zhang, et al. "A limiting current oxygen sensor prepared by a co-pressing and co-sintering technique." Sensors and Actuators B: Chemical 277 (December 2018): 216–23. http://dx.doi.org/10.1016/j.snb.2018.09.007.

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Sun, Lan, Cheng Chang Jia, and Hua Tang. "Research on Two Sintered Techniques of Nanometer WC-Co Powder." Materials Science Forum 534-536 (January 2007): 593–96. http://dx.doi.org/10.4028/www.scientific.net/msf.534-536.593.

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This paper concerned with SPS (spark plasma sintering), hot pressing of sinter nanometer WC-Co powder and discussed the density, hardness, microstructures and grain sizes of the alloys sintered by different styles. The results showed that SPS could lower the sintering temperature, increased the density and circumscribed the growth of grain size of WC. Hot pressing sintering could produce high density alloys and play well on the grain growth, but its sintering temperature and sintering time were larger than SPS. Besides, the hardness of the sintered cemented alloys that was dependent on the gra

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Kim, H. G., H. M. Lee, and K. T. Kim. "Near-Net-Shape Forming of Ceramic Powder Under Cold Combination Pressing and Pressureless Sintering." Journal of Engineering Materials and Technology 123, no. 2 (2001): 221–28. http://dx.doi.org/10.1115/1.1354991.

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Near-net-shape forming of zirconia powder was investigated under the combination of cold die and isostatic pressing and pressureless sintering. A combination pressing technique, i.e., die compaction under cold isostatic pressing, allowed the forming of a complex shaped ceramic powder body with better dimensional control than that achieved by cold isostatic pressing and more uniform density distribution than that by die pressing. The constitutive models proposed by Kim and co-workers were implemented into a finite element program (ABAQUS) to simulate densification of ceramic powder under cold c

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Bolokang, A. S., M. J. Phasha, D. E. Motaung, and S. Bhero. "Effect of Mechanical Milling and Cold Pressing on Co Powder." Journal of Metallurgy 2012 (February 2, 2012): 1–7. http://dx.doi.org/10.1155/2012/290873.

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Cold pressing (CP) of the amorphous-like Co powder suppressed most of the XRD peaks, in particular the peak along (100) plane. The DSC curve of unmilled CP Co powder has shown a distinct sharp exothermic peak at 615C°. Upon annealing at 700C°, only the FCC phase with lattice parameter of 3.51 Å was detected by XRD. Our results implied that the exotherm at 615C° corresponds to compaction-pressure-assisted HCP to FCC first-order phase transition. The XRD analysis of 30 h milled powder revealed for the first time the FCC phase with a=3.80 Å. However, due to presence of (100) and (210) peaks, this

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Zhao, Zhenye, Jianwei Liu, Huaguo Tang, Xianfeng Ma, and Wei Zhao. "Cr3C2 doped W0.6Al0.4C0.8–Co hard alloys prepared by hot-pressing." International Journal of Refractory Metals and Hard Materials 48 (January 2015): 333–37. http://dx.doi.org/10.1016/j.ijrmhm.2014.10.004.

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Li, Kun, Hai Yan Chen, Qiu Shuang He, and Li Hua Dong. "Microstructure and Properties of Hot-Pressing Sintered Tungsten Carbide Composites by Adding Cubic Boron Nitride." Key Engineering Materials 655 (July 2015): 45–48. http://dx.doi.org/10.4028/www.scientific.net/kem.655.45.

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(0, 5, 10, 15, 20) vol% CBN-WC/Co composites were consolidated by ball milling and the following hot-pressing sintering method. WC, Co and CBN powders were used as the starting materials. The effects of the CBN content on the density, microstructure and mechanical properties of CBN-WC/Co composites were investigated. The results showed that the CBN content had remarkable influence on the microstructure and mechanical properties of CBN-WC/Co Composites. With the increasing content of CBN, the density decrease, while Vickers hardness and flexural strength increased initially to the maximum value

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Shen, Qian, Yi Long Ma, Jun Dong, and Deng Ming Chen. "Preparation and Magnetic Properties of Nanocrystal Bulk SmCo₇ Magnets." Materials Science Forum 815 (March 2015): 276–80. http://dx.doi.org/10.4028/www.scientific.net/msf.815.276.

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Two kinds of 2:17R Sm-Co alloys, Sm2(Fe,Cu,Zr,Co)17 and pure binary Sm2Co17 were prepared, and the amorphous powder was prepared by high-energy ball milling Sm-Co alloys. The bulk nanocrystalline SmCo7 was prepared by hot-pressing the amorphous powder, and the magnetic properties and phase composition were studied. Initial Sm2(Fe,Cu,Zr,Co)17 showed a large value of coercivity while the pure Sm2Co17 almost showed no coercivity. However, after ball milling the grain size of alloys decreased dramatically until completely amorphous. Two kinds of alloys showed the different phase composition and ma

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Zhao, Xianrui, Ze Yu, Dunwen Zuo, et al. "The effect of various Co contents on the microstructure and properties of Ti(C,N)-TiB2-Co cermets prepared in situ via reactive hot pressing." Advances in Mechanical Engineering 12, no. 5 (2020): 168781402092571. http://dx.doi.org/10.1177/1687814020925716.

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Ti(C,N)-TiB2-Co cermets were in situ synthesized, via reactive hot pressing from the Co-Ti-C-BN system, with a Co content ranging from 6 to 22 wt%. The microstructure, relative density, hardness, and fracture toughness of the sintered compacts was investigated by light microscopy, scanning electron microscopy, ceramic densitometry, and Vickers hardness test. The investigations indicate that during hot pressing (compacting pressure = 30 MPa), when the Co content is 14–22 wt%, the metal binder is extruded. Co and Ti are included in the extrudate, breaking the original ratio and deteriorating the

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