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制主要为磨粒磨损和粘结磨损. 关键词:微纳米复合材料;陶瓷刀具;40CrNiMo;切削性能;磨粒磨损 中国分类号:TG 711 文献标志码:A Cutting performance and wear mechanism of Si3N4-based micro/nano composite ceramics tool in high speed... were discussed. The results show that STS micro/nano composite tool material has excellent mechanical properties. The flexural strength and hardness are 1000 MPa and 19.5 GPa, respectively. The flank......
ex-situ ceramic nanoparticles into matrix via either powder metallurgy (PM) or liquid metallurgy route. For example, YANG et al [4] studied on bulk aluminum matrix nano-composite fabricated.... [4] YANG Y, LAN J, LI X. Study on bulk aluminum matrix nano-composite fabricated by ultrasonic dispersion of nano-sized SiC particles in molten aluminum alloy [J]. Materials Science and Engineering......
in the additive content. When the electroplating solution contained 10 g/L WC nano- powder, 0.2 g/L PEG and 0.1 g/L SDS, the WC-Cu composite exhibited hardness of HV 221 and electric conductivity... materials because WC and Cu do not dissolve in each other and WC particles hinder sintering. Electroplating is an economical method for preparing nano-composite coatings in one step without secondary......
can not only make the polymer embed into the interlayer to form the embedded nano-material, but also make the sheet layer evenly disperse in the polymer to form the laminated nano-composite material. When montmorillonite used for asphalt modification, it is usually two kinds of structures: intercalated nano-composite structure (mostly inorganic montmorillonite) and exfoliated nano-composite......
, MASUMOTO H, SOMENO Y, GOTO T. Preparation of Au/SiO2 nano-composite multilayers by helicon plasma sputtering and their optical properties[J]. Materials Transactions, 2002, 43: 2855-2859. [8] PENG L M..., 2003, 18: 215-254. [9] ZHONG R, CONG H T, HOU P X. Fabrication of nano-Al based composite reinforced by single-walled carbon nanotubes[J]. Carbon, 2003, 41: 848-851. [10] URTIGA FILHO S L, RPDRIGUEZ......
(h)-Al2O3 binary nano- composite coatings 2.4 镀层表面粗糙度 图5 不同纳米颗粒浓度和掺杂配比下制备的镀层表面粗糙度 Fig. 5 Surface roughness of coatings deposited at different nanoparticle concentrations and doping...电铸技术的试验研究[J]. 机械科学与技术, 2009, 28(1): 66-70. LIU Yong, XUE Yu-jun, LI Ji-shun, MA Wei, LI Hang. Experimental investigation of binary nano-composite electroforming[J]. Mechanical Science and Technology......
as well as nano-composite hard materials[8-11]. In our research on preparation of Ti(C, N)-based cermets, it was also found that the sintered samples with sub-micron grade hard particles in raw materials did not crack without any lubricant in green compact, whereas, macro cracks vertical to the direction of pressing appeared on the appearance of green compact for ultrafine and nano-composite cermets......
nano-composite mixtures [J]. Propellants, Explosives, Pyrotechnics, 2010, 35(2): 93-99. [4] HUNT E M, MALCOLM S, PANTOYA M L. Impact ignition of nano and micron composite energetic materials [J... dense nano-composite energetic powders prepared by arrested reactive milling [J]. Proceedings of the Combustion Institute, 2005, 30: 2071-2078. [16] MEI J, HALLDEARN R D, XIAO P. Mechanisms......
were also discussed. The optimal microhardness of HV50 270 was achieved for the composite with addition of 20 g/L TiO2 nano-particles after annealing at 400 °C for 90 min. The calculation... containing HCl 0.5 mL/L with HF 0.4 mL/L for 1 min. The concentrations of TiO2 nano-particles were set as 5, 10, 20 and 30 g/L (5, 10, 20 and 30 g/L samples are short for Ni-TiO2 composite samples......
studied the corrosion behavior of Al-SiC nano-composite produced by accumulative roll bonding (ARB) and showed that the increase in ARB cycles could lead to a decline in the number of pits and a rise... alloy [J]. Corrosion Science, 2014, 83: 198-208. [12] DARMIANI E, DANAEE I, GOLZAR M A, TOROGHINEJAD M R. Corrosion investigation of Al-SiC nano-composite fabricated by accumulative roll bonding (ARB......